Icom and ham radio go hand-in-hand, one of their main markets is supplying top of the range equipment, this IC-7300 follows on from the wonderful IC-F7200 (which is a favourite in the office) and sits along side the new range of digital IC-F1000 & 2000 radios that are going really well, but have a new connector type, so new icom earpieces are needed. Read the comprehensive review we found from theÂ swling.com website.
In August 2015 at the Tokyo Hamfair, Icom debuted a new type of transceiver in their product lineââone featuring a direct RF sampling receiver. Essentially, it was an SDRtabletopÂ transceiver.
At about the same time that the IC-7300 started shipping around the world, Icom pulled their venerable IC-7200 off the market. Yet the IC-7200 was established as a well-loved product,Â due toÂ itsÂ highly sensitive receiver, its relatively robust front end, and its quality audio. Moreover, itÂ was simple to operate, which made superbÂ as aÂ Field Day or radio club rig.
Therefore,Â even though the IC-7300 promised much more versatility than the IC-7200, for its price point it had a tough act to follow.
So, of courseââevenÂ more so than with any other radio Icom has introduced in the past few yearsââI was eager to get my hands on aÂ IC-7300. Â Iâm very fortunate that my good friend, Dave Anderson (K4SV) was one of the first purchasers of the IC-7300, and that he didnât mind (after only having the rig perhaps one week!)Â allowing me to borrow it for a severalÂ weeks forÂ evaluation.
Note: Â I should state here that since this rig was loaned to me, I evaluated itÂ based on the firmware version it shipped with, and made no modifications to it.
Introducing the Icom IC-7300
In recent years, the âbig threeâ ham radio manufacturers have been using color displays,Â andââIcom most especiallyââtouch screens. While Iâm no fan of backlit touch screens in mobile applications, I Â think touch screen displays make a lot of sense in a base radio. If carefully designed, a touch screen can save an operator from heavily-buried menus and decrease the number of multi-function buttons on the front panel.
The challenge, of course, is making a display with intuitive controls, and one that is large enough, and with sufficientÂ resolution, to be useful to the operator. In the past, Iâve been disappointed by many displays; the most successful have been incorporated in DX/Contest-class (i.e., pricier) transceivers, meanwhile, entry-level and mid-priced transceiver displays often seem half-baked. WhileÂ the graphics may beÂ crisp, spectrum displays at this price point are often too compressed to be useful, and if not a touch display,Â force the user to pause operation in order to find the correct knob or button to change settings. In suchÂ cases, I find myself wonderingÂ why the manufacturer went to the expense of a color display at allââ?
But what about theÂ C-7300 display? Â Iâm thoroughly pleasedÂ to reportÂ that Icom did afantasticjob of balancing utility and function in design of the IC-7300âs color touch display and front panel. There are Â number of ways you can chose to display and arrange elements on the screenâsince Iâm an SDR fan, I typically chose a display setting which gave the waterfall the most real estate. Of course, one can chose to give the frequency display priority or a number of other arrangements.
I can tell that Icom built upon their experience with the IC-7100ââtheir first entry-level touch screen display transceiver.
I was able to get the IC-7300 on the air in very little time. Within five minutes of turning on the IC-7300, I was ableÂ to:
Basically, I found that all the essential functions are clearly laid out, accessible, and highly functional. Â Impressive.
The IC-7300 ships with a manualââ aptly titled, the âBasicâ manualââand a CD with the full and unabridged operations manual. Â The Basic Manual covers a great dealÂ a lot more than the manual which accompanied theÂ Icom ID-51a. If you read through the manual, youâll readilyÂ familiarize yourself withÂ most of the IC-7300âs higher function operations,Â and especially, youâll be able to adjust the settings to your operation style. The Manual is written in simple language, and includes a lot of diagrams and graphics.
If youâre like me, you will find youâll also need to reference that unabridged manual, so hang on to the CD, too.
Still, I imagine thereâs a large percentage of future IC-7300 owners that will never need to reference the manualââespecially if they donât care about tweaking band edges or similar settings. Yes, believe it or not, itâs that easy to use.
While I spent a great deal of time listening to CW and SSB in various band conditions and at various times of day, I spent less time on the air transmitting.
With that said, all of my transmitting time was in CW since the IC-7300 mic was accidentally left outÂ when my friendÂ loanedÂ me the rig.
Iâm please to report that CW operation is quite pleasant. All of the adjustmentsââRF Power, Key Speed, and CW Pitchââcan be quickly modifiedÂ using the multi-function knob. While in CW mode, you can also toggle full break-in mode,Â which is quite smooth,Â via the function button and touch screen.
SSB functions are similar. While in Â SSB mode, the multi-function knob allows you to change the tx power, mic gain, and monitor level. The function button opens an on-screen menu with VOX, compression, TBW, and the monitor toggle.
Hereâs a short video I made with my phone while I made a few adjustments to the IC-7300:
Of course, my smartphonesâs microphone canât accurately reproduce the audio from the IC-7300, but you probably get the idea.
The only annoyance I notedââand perhaps Iâm more sensitive to this, being primarilyÂ a QRPerââis that the 7300âs cooling fan starts up each timeÂ you key up. It even comes on when transmit power is at its lowest setting. I find this a little distracting in CW. Â Fortunately, however, the 7300âs fan is fairlyÂ quiet and operates smoothly.
Since our radio comparison shoot-outs have been particularlyÂ popular (and useful; check out our shoot-out between top portables, andÂ ultra-compact radios, and others), I decided it would make sense to inviteÂ our informedÂ readership to evaluate the Icom IC-7300âsÂ performance in a series of blind, informal tests. (For information about these surveys,please read the first survey.)
Below, Iâve matched the labels (Radio A/Radio B) with the radio models. Â Iâve also included pie charts which show the results from the survey.
Weak Signal CW (40 meter band)
Based on listener comments, those of you who preferred the â7300Â did so because the CW was more interpretable and stable.
Some of you noted that I didnât quite have CW at the same pitch on both rigs. I believe this is because the IC-7300âs calibration was ever soÂ slightly off. This has since been addressed.
Weak/Strong SSB QSO (40 meter band)
This result was almost tied. The Excaliburâs audioââwithout any adjustmentsââhas a fuller and âbassierâ sound. The â7300 can be adjusted to have similar characteristics,Â but the default EQ settings produce very flat audio. Many of you commented that the IC-7300 more faithfully produced audio optimized for SSB.
The following recordings were made on the 31 meter broadcastÂ band in the evening. Both radios had the same filter width: 9 kHz and 8.2 kHz.
Weak Shortwave AM (Radio Bandeirantes 31 meter band)
There was a noticeable preference for the WinRadio Excalibur in this particular audio set. Even though the Excaliburâs audio splattered a bit, the content was more interpretable. The IC-7300âs audio sounded flat in comparisonââagain, something that can be adjusted quite easily in the â7300âs audio settings.
Strong Shortwave AM (Radio Romania International, French 31 Meter Band)
Once again, the Excalibur won favor, but I imagine results would have been closer had I adjusted the â7300âs audio EQ.
Note that the following mediumwave recordings were made during the morning hours (grayline). The strong station is the closest AM broadcaster to my home;Â itâs not a blow-torch âClass Aâ type station, merely the closest local broadcaster.
In the âweakâ sample, IÂ tuned to 630 kHz where multiple broadcasters could be heard on frequency,Â but one was dominant.
Both radios are set to a filter width of 9.0 kHz.
Strong Mediumwave AM (1010 kHz)
Two out of three listeners preferred the Excalibur in this example.
Weak Mediumwave AM (630 kHz)
In this particular example, the IC-7300 could not pull the strongest broadcaster out of the pile as well as the WinRadio Excalibur. In fairness, the Excalibur was using AM sync detection,Â something the IC-7300 lacks.
I also decided to pit the IC-7300 against my well-loved Elecraft KX3.
Audio Clip 1: CW (20 meter band)
Based on comments, readers who preferred the IC-7300 felt the CW sounded more pleasant and stable.
Audio Clip 2: Weak Signal CW (20 meter band)
Your comments indicatedÂ that the CW seemed to âpop outâ of the noise slightly better withÂ the IC-7300.
Audio Clip 3: Weak/Strong SSB
(Sable IslandÂ working Asia/Pacific onÂ 20 meter band)
These results were spilt in the middle. Again, I believe this comesÂ down to personal preference in theÂ audio. And againââin both radiosââthe audio EQ can be adjusted to suit the operator.
Receiver performance summary
I enjoy producing audio clips for readers to compareÂ and comment upon. Each time Iâve done so in the past, Iâve had listeners argue the virtues of a particular audio clip while others have the complete opposite reaction to that same clip. Not all of us prefer our audio served up in the same way. No doubt, thereâs a great deal ofÂ subjectivity in this sort of test.
Iâve had the IC-7300 on the air every day since I took possession of it. Iâve listened to SSB, CW, and lots of AM/SW broadcasters.
And hereâs my summary: the IC-7300 is an excellent receiver. It has a low noise floor, superb sensitivity and excellent selectivity. I even slightly prefer its audio to that of my Elecraft KX3,Â and Iâm a huge fan of the little KX3.
Iâve written before about how difficult it is to compare SDRs;Â the problem is that there are so many ways to tweak your audio, filters, AGC, noise reduction, etc. that itâs hard to compare apples with apples.
In the audio samples above, the IC-7300 and WinRadio Excalibur were both set to their default audio settings. In SSB and CW, the IC-7300 excels, in my opinion. CW seems to pop out of the noise better and SSB is more pleasant and interpretable. The Excalibur has a better audio profile for AM broadcasters, though. Its default audio simply sounds fullerâmore robust.
The audio from the IC-7300 on AM sounded absolutely flat. However, if I tweak the audio of the â7300, adding more bass, it instantlyÂ sounds more like a dedicated tabletop receiver.
I should also mention that while the IC-7300âs built-in digital recording is a fantastic and effective feature, it doesnât produce audio true to whatâsÂ heard through headphones live. This is especially the case when you add more bass and treble response as in the RRI example above. When the audio EQ is set to a default flat, itâs quiteÂ accurate.
If, however, I have limited space and/or budget for multiple receivers, Iâd be quite happy using the IC-7300 as a broadcast receiver on the HF bands.
Speaking from theÂ Shortwave Radio Listener (SWL) perspective, meanwhile, am IÂ pleased with how the â7300 handles the broadcast bands? Â Most definitely.
And as a ham radio operator, am I pleased with the IC-7300âs receiverââ? Â Absolutely.
In short: Â the IC-7300 seems to have some of the best all-around receiver qualities of any transceiver I know under $2,000.
Every radio has its pros and cons. When I begin a review of a radio, I take notes of my initial impressions. Hereâs my list forÂ the IC-7300:
In a nutshell: Icom has hit a home run with the IC-7300. Â If I didnât already have an Elecraft KX3 and K2, I would buy the IC-7300 without hesitation.
Though the price point is a little high for an âentry level transceiver,â itâs worth every penny, in my opinion. For $1500 US, you get a fantastic general-coverage transceiver with an intuitive interface, nearly every function you can imagine, and performance that would please even a seasoned DXer.
Though I havenât done and A/B comparison with the IC-7200, I imagine the IC-7300 would prevail in a test. The IC-7300 would certainly wipe the floor with itâs more economical brother, the IC-718.
Radio clubs,Â take note:
In my view, the IC-7300 has the makings ofÂ an excellent radio club rig in whichÂ performance, functionality, as well as ease of use are important. I expect that the IC-7300 will not only cope very well with crowded and crazy Field Day conditions, but it will also give any newcomers to the hobby a little experience with a proper modern transceiver. The fact that you can viewÂ signals so easily on the spectrum display means that it will be easier to chase contacts and monitor bands as they open and close. Indeed, what better way to mentor a newly-minted ham in modes, contacts, carriers, QRN, QRM, and so forth,Â than to simply pointÂ theseÂ out on the IC-7300âs bright,Â clearÂ displayââ?
If your club is considering a transceiver upgrade or purchase, do seriously consider the IC-7300. I think youâll find this rig isÂ up to the task.
And for home? The Icom IC-7300 may be all of the rig youâll ever need.
Is this is a real problem? Do you use a set of headphones whilst gaming? This article has information on how damaging wearing gaming headphones is and what the future impact might be. Read this, examine how you use your headphones and get on with lifeâ¦
According to the Q1 2016 GameTrack report, 18.8 million people between the ages of 6 and 64 game and those between 11 and 64 spend an average 8.8 hours per week doing so.
Â Amongst Gamers the largest group is 15 to 24 year old males who are most at risk of permanently damaging their hearing. This group spends the most amount of time gaming and are also the most attracted to the âloudâ games. Furthermore a majority of them live in a shared accommodation and use headphones so as not to disturb others. This group also the most likely to take part in other activities which can be harmful to their hearing such as listening to music through headphones, going to gigs and festivals, and nightclubs.
Â Unfortunately the price of their enjoyment could well be significant and permanent hearing damage. Whilst there is clearly a risk to the Gamer, it could transfer as a liability to the games companies in the form of legal action relating to their duty of care.
Â The first significant step is to make Gamers aware of how much sound exposure they are experiencing and what they can do to prevent hearing damage, because hearing damage is permanent
Â Hearing damage is caused by the combination of how long you listen (time), how loud you listen (volume), and what you listen to (energy content). The combination of these three factors create a âsound doseâ, if the dose is too high it starts to damage your hearing.
Â The UNâs World Health Organisation and hearing conservation organisations are increasing awareness of the risks and advise users to restrict their daily sound dose to less than 85dB average over 8 hours.
Â Gamers who use headphones currently have no realistic way to indicate what level they are listening at and how much of their daily sound dose they have used. The answer will be to provide them with an intelligent sound dose measurement app or software, giving them their individual sound dose exposure information and guidance, with optional protection, so that for the first time they can make informed decisions about their hearing health.
Hytera have a wide range of radios in their catalogue now, and this is a new addition. The PD98X is for the professional communicator, a radio that has more added extras than a lot of smart phones. A couple of questions we would like to ask are:
What will the price be?
Can I use my current Hytera earpiece with this radio?
And when will this be available?
But this does seem to be a nice addition to the Hytera range and we canât wait to try it out.
Hytera, a leading solution provider of professional mobile radio communications, has launched its latest digital mobile radio (DMR) handheld PD98X, adding another strong member to its top-notch DMR portfolio.
PD98X offers an exceptional audio experience through noise cancellation technology, while boasting new features including full duplex calls, recording capability via Micro SD, Bluetooth 4.0 for audio or data and single frequency repeater mode to increase coverage, said a statement from the company.
GS Kok, senior vice president of Hytera, said: âWe are proud to announce the launch of PD98X.â
âA series of cutting-edge innovations and designs have been added into this new model to make it a full-featured radio to satisfy customers’ increasing demand for functionality and user experience,â he said.
The addition of the PD985 positions Hytera with the most complete DMR radio portfolio to meet diversified requirements, from simple, reliable and cost-effective handsets (PD3 and PD4 series) to rugged and feature-rich solutions (PD5 and PD6 series), up to the high-end, professional system radios (PD7, PD9 and X1 series), it said.
The key advanced features of PD98X include:
â¢Full Duplex Call
PD98X enables frontline personnel to make telephony calls between other PD98X and telephones or mobile phones.
â¢Single Frequency Repeater Mode
Based on interference cancellation technology, PD98X is able to use one slot to receive a signal and another to transmit it in the same frequency using DMO mode to extend the communication distance.
â¢Built-in Bluetooth 4.0
With integrated Bluetooth 4.0, PD98X supports both audio transmit and programming via Bluetooth.
â¢Noise Cancellation and 2.5W Audio Output
Maximum 2.5W output speaker and new noise cancelling technology ensure clear and loud voice communication.
PD98X complies with the highest dust and waterproof standards, to confront the harshest environments. The radio continues to function after submersion down to 2 meters for up to four hours.
This feature makes it easier to monitor the battery status, such as battery life time and charging time, reducing charging time dramatically.
â¢Audio Recording via Micro SD Card
PD98X supports up to a 32GB Micro SD card, to record up to 576 hours digital/analog audio.
The whole portfolio offers display and non-display, GPS and non-GPS, UHF and VHF versions, allowing customers to select the best handset for their daily operation and mission-critical scenarios,
The good old walkie talkie will still have a place in most businesses, but Motorola being a technology company they are always innovating, they are underpinning their future communications on data, currently date networks cannot cope with this but as the technology grows, Motorola will be able to produce handsets, motorola accessories and communications that will seamlessly use this without any problem, we look forward to the future.Â
Motorola Solutions CTO Paul Steinberg explains how data and enhanced communications can make cities safer â even if theyâre not smart just yet
As CTO of Motorola Solutions (MSI), Paul Steinberg says he has three broad remits.
The first is to advance the companyâs technology with his team of engineers and data scientists, the second is to drive its patent strategy (âWhat patents we get and what we do with themâ) and the third is to invest in startups so MSI can get access to something it doesnât have.
âIt keeps you humble because thereâs always someone else doing things faster and better than you,â he tellsÂ TechWeekEurope.
Motorola Solutions now only deals with public safety communications systems. It was spun off from the Motorola Mobility handset business that was sold to Google (and later Lenovo) in 2011 and sold itsÂ handheld computing division to Zebra Technologies in 2014.
This might seem like a very narrow focus but itâs a market in which the present day Motorola senses a great opportunity as emergency services update their infrastructure to improve service and cut cost.
In the UK, MSI is working withÂ EE to help deliver the Â£1 billion Emergency Services Network (ESN) â a 4G platform that will allow for data-enabled services alongside critical communications â and save the government Â£1 million a day
These upgrades will power what MSI sees as the big trend in public safety: the coupling of communications with data analytics, a vision it recently outlined at Critical Communications World (CCW) in Amsterdam.
â[Mission critical communications are] every bit as important as they have been and we expect [them] to be tomorrow,â explains Steinberg.
âMission critical intelligence brings in connecting things â data. It becomes more about context and situational awareness. The investments weâre making are more in that direction.
âOne of the things weâve been working on is the connected first responder. What we did was we built a context engine thatâs at the heart.â
The âcontext engineâ built by MSI brings together various different inputs. For example, Bluetooth connectivity can unite weapons, body sensors and imaging equipment to give a police force a greater overview of a situation.
Steinberg explains a scenario where if the context engine detects a weapon has been fired and a policeman is not at a station or at a firing range, their video camera will automatically switch on. Other situations could give a paramedic of firefighter additional information, possibly through wearable technology.
âWhy did we do the Context engine? âEyes open, hands freeâ: keep focussed on what youâre doing and keep your hands available to do what you need to do,â saidÂ Steinberg.
âWe envisage this working as an ecosystem with well-designed interfaces around the core context engine. We see ecosystem partners offering applications and hardware. And some pieces of those we will offer as Motorola. We see it increasingly as a software problem.â
Steinberg favours acquisitions as a way of advancing his goals and MSI has venture capital operations to fund the third part of his remit. MSI monitors the development of numerous early stage companies with a view to boosting its own business.
â[Takeovers] give us technology or a skillset that we canât do properly [ourselves],â he explains. âIf the concept looks like it has legs, thatâs when we make the decision. In some cases we donât proceed.â
Sometimes the target is more established.Â MSI has bought Airwave for Â£817 million, a move which it is believed will help accelerate the transition to next generation systems. Airwave currently powers the pre-ESN communications capability of the UK emergency services and Steinberg sees the acquisition as a method to migrate customers rather than innovate.
âIt brings us another data point but it doesnât really change how my team works,â he says. âItâs a company that helps us ensure we have an orderly migration.â
Smart cities and smart vehicles
MSI says the Context Engine and its vision of data-supported communications will be strengthened by theÂ parallel development of smart cities;Â even if itâs too early to have any impact right now. Steinberg describes âshotspotterâ technology capable of detecting when and where a gunshot is fired, aiding emergency services, and believes smart cars will also play a role.
âI think as the city becomes smarter, we can benefit from the environment,â he predicts. âWe can fuse that together and help facilitate real time decision making. The next mobile platform is the vehicle. I think that will create some interesting opportunities for us.â
But the very nature of emergency services means technological jumps are not to be taken lightly. A technical hiccup can mean the matter between life and death and although political reasons might have delayed the transition to LTE, concerns about reliability will have played a role too.
Steinberg agrees and is adamant that no matter what advances are made, MSI will not jeopardise the basics.
âThe foundation of our business is communications and it always will be,â he states. âMaking sure our platform is resilient, usable and mission critical in harsh environments while layering on this intelligence.â
It is understood that ear moulded plugs are far more comfortable and effective than the mushroom plugs, but which ones are the best? The Custom fit or generic fit. This article runs over the positives and negatives of that question and comes to a conclusion, if your debating to get some moulded ear plugs or some from the shelf, you will want to read this first.
Over the past 20 years,Â In Ear MonitorsÂ (orÂ IEMs) have become a near-necessity for live performance.
In years prior, engineers would inevitably have to crank up a venueâs stage monitors loud enough for the musicians to hear themselves over the audience, over the sound coming from the stage, and over the main mix.
This would often lead to an arms race of ever-increasing stage volume, potentially causing feedback issues and compromises in clarity and quality for the live mix.
Custom in-ear monitors from JH Audio, one of the first commercial brands to make a name for itself in the IEM market.
With the advent of in-ear monitors, all this began to change.Â In the mid-1980s,Â EtymoticÂ developed the first-ever insert-styleÂ earphones, and soon after, a designer namedÂ Marty GarciaÂ began making one-off custom in-ears for rock stars like Todd Rundgren.
By 1995, Jerry Harvey, founder ofÂ Ultimate EarsandÂ JH Audio,Â brought some ofÂ the first commercially-available dual-driver IEMs to market. All of a sudden,Â everyday musicians had an option that allowed usÂ to save our hearing, get better monitor mixes, and dramatically reduce the chances of feedback onstage.
Today, IEMs are increasingly being considered useful tools for the studio as well. Their ability to prevent sound leakage can be of tremendous value in helping to control click and instrument bleed, and in saving musiciansâ hearing by allowing them to monitor at lower levels.
Some musicians and engineers, such as drummer Rich Pagano ofÂ The Fab Faux, will use IEMs to quickly check for phase when micâing up a drum kit, while others turn to IEMs as a kind of audio microscope, using them to help check for and remove extraneous low-level noise.
Any modern musician would be wise to consider adding in-ear monitors to their toolkit. But is it worth it to dish out the extra money on custom fit IEMs, instead of saving some money with the generic fit ones?
In testing a variety of in-ear monitors from brands like Westone, Ultimate Ears, Future Sonics, and even Skullcandy (that last of which is not recommended for professional use), I have found that there are cases in which generic fit earphones may work better than their custom counterparts. Making the right decision for your needs comes down to considering the following four factors:
Ultimate Ears custom fit in-ear monitors.
Custom fit IEMs tend to cost more than generic fit ones, as it takes more time and effort for the manufacturer to craft a product designed specifically for the unique anatomy of your ear.
Getting custom IEMs made also requires that you go to an audiologist to make a mold of your ear canal that the IEM company can then use to make your monitors fit as well as possible.
Take note of both of these costs, which can range from $100-$200 or more for a fitting from an audiologist, and $299-$1499 or more for the custom monitors to be made.
2)Â Comfort & Seal
Custom fit IEMs areÂ custom, so they should feel really comfortable, right? Â Well, yes and no.
In my experience, custom fit IEMs can feel a little tight in the ear canal compared to generics, especially at first. Hearing so little acoustic feedback from your performance can also take some getting used to, and the tight seal of custom fit in-ears can feel particularly awkward when signing.
Because of this, my looser-fittingÂ Westone 3Â generic IEMs actually feel more comfortable to me on vocal duties, so I often find myself using them over my custom fitÂ Future SonicsÂ when I step up to the mic.
Matt Bellamy from MuseÂ (recently featured inÂ Get THAT Guitar Tone) has been seen using both customUltimate Ears UE-11s and generic-fitÂ Westone UM2s when on tour, and my guess is that he has similar reasons.
Though the tight fit of custom IEMs and lack of acoustic feedback from your performance can be a challenge, itâs worth noting that generic foam-tip IEMs also provide their own tradeoffs: The looser fit of generics can sometimes create a bit of a tingling or âticklingâ feeling in your ear when playing at higher volumes, so it may be useful to have a pair of each and go with what feels best depending on the date and venue.
Silicone-based Encore Studio custom IEMs from ACS.
Another option here is the custom fit brandACS, which makes its IEMs out of soft silicone shells.
This softer silicone-based design is meant to offer both better comfort and a tighter fit than the hard acrylic shells used by brands like Westone and Ultimate Ears.
Though these silicone monitors sell for a premium price of $400-$1,200 and up, they may help bridge the gap between the tight seal of custom acrylics and the looser and easier fit of foam-tipped generic IEMs.
3)Â Hearing Protection
In addition to cutting down on sound leakage to help improve sound quality and reduce feedback, another primary benefit of IEMs is that they can offer considerable hearing protection by helping to block out exterior noise, allowing you to monitor at lower levels.
Some of the best custom fit brands likeÂ JH AudioÂ andÂ Ultimate EarsÂ offer NRR ratings of 26dB in reduction, and some of the better generic brands advertise comparable results as well. (Though your results with generics may vary depending on the fit and seal in your ear.)
In the long term, reducing the levels youâre regularly exposed toâeven by a few extra decibelsâcould mean the difference between a long and illustrious career as a âgolden-earedâ audio engineer and potentialtinnitusÂ and irreversible hearing loss.
Also worth checking out is theÂ REV33Â system, which can be added on to yourÂ your in-ear-monitoring system to help reduce distortion and ear strain. Many live musicians, includingÂ Phil XÂ and Steve Salas swear by the system. According to the company:
âAll in-ear monitors and headphones generate damaging, unwanted noise and distortion that forces the ear to shut down and compress for protection. The REV33 reduces the symptoms of tinnitus, ear-ringing, ear-fatigue, buzzing and dampened hearing by preventing in-ear monitors and headphones from producing this unwanted noise and distortion.â
4)Â WaitingÂ and TimeÂ Considerations
After getting my first pair of IEMâs made, I found that the right ear monitor turned out well, but I was not getting a proper seal in the left ear at first. This made the monitors essentially useless for my live sound needs at the time, and so I had to send them back for some tweaking.
When I got them back a couple of weeks later, the seal still wasnât great, so I had to send them back once again for further modification, and visit my audiologist a second time to take another impression of my ear canal to send in.
Getting the perfect fit turned out to be quite a time-consuming process (as well as an expensive one) so unless youâre on the hunt for a long-term solution with as much acoustic isolation as humanly possible, you might satisfice with generic IEMs, or keep some around as an alternate option.
In that case, I would recommend the generic in-ears from Ultimate Ears, Shure, or Westone.
Ultimate Earsâ generic fit UE900 model sports 4 drivers for $400.
TheÂ Ultimate Ears UE900âs are a great sounding 4-driver IEM that only costs $399, while the $99Â Shure SE215Â single-driver IEMs advertise an astonishing 37dB of noise reduction (more than most custom IEMs) at a great price.
My own triple-driver Westone 3âs (since replaced by theÂ W30 model) are the most comfortable in ear monitors I own right now, and they isolate a lot more noise than most thanks to their foam-tip construction.
Compared to custom in-ears, any of these model can potentially save you time and money, or work as a welcome supplement for those times when the tight fit of custom in-ears feels irksome.
I hope my experiences here help you make the right decision when you go to buy your own IEMs. In short, I found that less-expensive generic foam-tipped IEMs worked better for me in many situations, and the savings enabled me to spend my money on better drivers with a fuller sound.
If youâve used IEMâs in the past, let us know in the comments below whether you prefer custom fits or generic fit ones, and why.
In the world today, walkie-talkies are very important tools. From security services, construction sites, camping sites to use during emergency rescue missions, they are a vital part of the communication industry. In the past, walkie-talkie users walked around talking and listening directly from the big phonesâ but with the advancement of technology, walkie-talkie accessories have made it possible to seamlessly communicate using earpieces and headphones connected to the walkie-talkie while it remains strapped to the belt. At Earpieceonline.co.uk we have a wide range of top quality walkie-talkie and radio accessories to help ease communication with workmates.
Using a radio earpiece for a walkie-talkie is very convenient and it simplifies the communication by a mile. Radio earpieces and headsets help in remaining discrete and offer clearer communications. This feature is important especially for police and security agents looking to conduct investigations and surveillance unnoticed. The push to talk features make it easy to walk around while communicating. Radio Â earpieces help in noise cancellation enabling loud and clear communication. When looking to buy a good radio earpiece, other than considering your budget, itâs important to consider the comfort and ease of use of the earpiece. Earpieceonline.co.uk, they have the best Radio Earpieces and Connectors together with many other Radio accessories. They have high quality Radio Earpiece Styles that guarantee to suit your working needs. Below are some of the top Earpiece Accessories, Connectors and Earpiece styles available in the Online store;
Earpieceonline.co.uk.co.uk, have the best earpieces both wireless and wired. These earpieces can be used together with all the leading 2 way Radio Brands like Motorola, Kenwood, Entel, Hytera and Icom. Their earpieces are very small, light and comfortable to wear. The small invisible earpieces will help provide clear and covert conversations. Your information is secure with these small masterpieces and no one will even realise that you are on radio communication.
They also have different styles of earpieces available in store. With D shaped earpieces, C shaped earpieces, acoustic tube (2 wire and 3wire) and bone conductors. It is upon the customer to make the choice for the most appropriate earpiece suited for his/her needs. Here are some of the available earpiece types in the store; High quality 3 wire covert earpieces, earpieces adaptors, in ear moulds and mushroom replacements for acoustic tube earpieces. The 3 wire covert earpiece kits available in our store include; The Covert Motorola Block connector earpiece, Covert Motorola 2 Pin connector earpieces, The Covert Kenwood 2 Pin connector earpiece and Icom Multipin connector earpiece. These earpieces can be used with most of the leading Radio brands in the market.
These acoustic tube earpieces are made from very durable materials with Kevlar cable reinforcement. The connecting wires to these connectors are long enough giving you freedom to walk around comfortably. They further have Noise reducing microphones, push to talk buttons and are all RoHS compliant. The features might slightly vary depending on the brand of earpiece you prefer.
We also have wireless kits to further make your communications discrete and easier. These kits are very small, light and easy to use. The inductive pack of the kit is attached to the collar of a shirt or inside a jacket and it then transmits audio signals to the in-ear wireless earpiece. A small push to talk button is concealed in the userâs wrist where the user will be talking to. The available wireless kits in EarpieceOnline include; Inductive wireless flat pack with its in-ear wireless earpiece and the Neck Loop Inductor Earpiece with an In âEar wireless receiver. All these earpieces come with well-designed mushroom replacements.
Different radios have different connection ports. At EarpieceOnline, they have a range of earpiece radio connectors to connect earpieces/headsets to all the leading radio brands like Motorola, Kenwood and Icom. Whereas other connectors are tailored to specific brands, some are universal and will be used to connect more than one 2 way radios. Some of the available connectors at Earpieceonline.co.ukinclude; interchangeable universal connectors- this connectors allow you to interchange between different radios like the Motorola GP340, GP344, GP360, DP3400, DP2400, all Icom, Hytera and Kenwood radios. We also have replacement connectors that are used to replace specific connectors. They include; DP2400 replacement connectors, Entel Multi-pin Connectors, GP340 Connectors and many other individual brands. Be sure to check with us for your desired connectors.
Why shop with us
Earpieceonline.co.uk have a large team of experienced professionals to help you with choosing and buying 2 way radios and accessories. We sell high quality products which meet the required standards to satisfy our customers. Our prices are very affordable considering the durable and the quality of the products that we offer. Our customers enjoy very fast responses to queries and we deliver the purchased items quickly. Visit our online store at EarpieceOnline.co.uktoday and get high quality products to suit your business. If you are looking for the best 2 way radios, earpieces, connectors, adaptors and many other communication accessories then EarpieceOnline is your perfect spot to shop.
When you think of the US Secret Service agents, the image that comes to mind is that of a person in dark sunglasses, black suit, and a coiled tube thing goes into his ear. The coiled tube thing is what the agents use to monitor and communicate what’s going around them, where dangers lurk and where they’re are needed. Unfortunately, the coiled tube thing tends to be very noticeable such that the bad guys will easily identify the secret service agents. Over the past couple of years, various earpiece companies have closely worked with the US secret service, and have supplied the agents with quality covert tactical earpieces. The covert tactical earpieces are much better than the traditional coiled tube earpieces because of a number of reasons. Some of the reasons include;
Security professionals typically chose earpieces based on just how discrete/covert they want to be. The level of covertness or discreetness is usually determined by the type of earpiece, earpiece style, and also the color. As aforementioned, if you want to identify a secret service agent you can simply look for the guy with a coiled tube type of earpiece. Luckily for secret service agents, various earpiece companies now offer earpieces which allow the secret service agents to efficiently communicate in a more covert and discreet manner without anybody noticing. They allow for discreet communication between the agent and his or her team.
In-ear earpieces are typically more discreet because they’re worn inside of the the ear as compared to the over-the-ear earpieces which are worn outside of the ear. It is also wiser to opt for colourless earpieces as opposed to the coloured earpieces for extra covertness. You can also opt for the wireless earpieces; the wireless earpieces are usually preferred over the wired earpieces since it is hard to tell that somebody is actually wearing the wireless earpiece as compared to the coiled tube, wired earpieces. The wireless earpieces normally receive the signals wireless. One needs to have a separate microphone worn at the end of the sleeve, or even on a lapel. In order to send a message to the other(s), the wearer has to speak into that microphone, and the other(s) will receive the message via their wireless earpieces.
You should obviously choose an earpiece which is comfortable to wear; Some of the crucial questions to ask prior to choosing an earpiece can include; how easy that earpiece is to not only wear, but also to remove, how easy is it to control and use the earpiece, and also whether the earpiece will be able to remain intact for as long as needed without falling off. One of the main reasons why most people dislike the coiled tube earpieces, is the lack of comfort. Most agents say that the coiled tube earpieces cause a lot of ear fatigue. Most of the secret service agents are usually connected to the radio 12 to 16 hours per day, and some agents will have the earpieces draped over their ears and hanging out, with the volume of their radio turned way up so they do not have to have to plug the coiled tube earpiece in their ears all day long. . Fortunately, the covert/discreet earpieces are very comfortable to wear. They use speakers which are smaller than the average ear canal; this means that there’s very little contact, thus are ideal for secret service agents who want to avoid the feeling of ear fatigue.
3. Sound quality
Secret service agents are dealt with protecting the President and as such, it is crucial to get everything right, including the message being sent to their earpiece. In case of a sensitive situation, it is even more crucial to get the message right or correctly. Listening to sounds which are being pushed up a coiled tube may leave a margin for error. The tactical earpieces have the speakers placed in the canal of the ear which means that the sound is basically created there, (approximately 7millimeters from the eardrum), and is worn in both of the ears. This allows the wearer to clearly listen to what’s being transmitted through the earpiece, meaning they will be more efficient in their work.
This is one of the main reasons why secret service agents dislike their coiled tube earpieces. Many of the secret service agents say that they usually feel like they are gradually incurring hearing loss especially in the ear which they plug the radio earpiece. Well, with the covert earpieces, the ear isn’t plugged so that the sound pressure can get released. And since it’s worn in both of the ears, and the speakers are located in the ear, the radio may be turned down, and you will have much better sound clarity. This allows agents to work more efficiently, and in addition, they will have no fear of incurring hearing loss.
The brain is typically wired to locate where sounds/noises originate from, or rather the brain is wired to localize. When you hear a sound from the right side, you will know it since it enters your right ear a little louder and a little quicker, and your brain registers that the sound came from the right direction. This means that a secret service agent, or anybody wearing the coiled tube type of earpiece in their right ear, might hear a similar sound a little louder in their left ear since their right ear is plugged. In sensitive situations, mistaking the location of the sound can be disastrous since it could leave time for bad guys to get away, attack, or complete their objective. The tactical earpieces are designed such that they help the secret service agents to accurately locate the actual place the sound is originating from.
The covert earpieces address all negative issues which anybody who wears or uses the coiled tube type of earpiece experiences. They’re comfortable, discreet, they use top notch, high end, high quality speakers which offer the best clarity, they help in reducing the risk of future hearing loss since one can reduce/adjust the radio volume, and they also allow wearers to accurately and quickly localize the direction a sound is coming from.
Smart earpieces are the next frontier for the smart generation, we have all seen the earpiece that can translate instantly But that is just the start, as we can see from this article about this Xperia Ear wireless earpiece, it updates you from your phone when you put it in your ear. It wonât be long before we wonât need a smart phone everything will be in our ear.
Sony has revealed its âsmart personal assistantâ that include a bluetooth earpieceÂ will go on sale in November.
At the IFA show in Berlin today, the firm confirmedÂ it will launch this November âstarting in select markets,â although its price has still not been revealed.
The Xperia Ear wireless earpiece can update you with any missed calls or messages as soon as you slot it into your ear.
The firm also showed off aÂ Xperia Agent, a robot measuring just over one foot tall, that also works as a PA.
âIt will navigate you to where you want to go and make your life eye-free and hands-free,â said Sony Mobileâs President and boss, Hiroki Totoki of the âherâ earpiece when it was unveiled at the MWC show earlier in the year.
âIt is also powered by Sonyâs voice technology and will respond to a number of commands.â
The firm says the smart earpiece âis a next-generation wireless ear-piece that brings a new way of communicating, without compromising on enjoying the world around you.â
It reads users information such as your schedule, weather and the latest news to keep you up-to-date on the go.
Powered by Sonyâs voice technology, it responds to verbal commands, so you can ask it to make a call, perform an internet search, dictate a message or navigate to a certain location.
It connects to an Android smartphone via NFC or Bluetooth and talks to a host application, where you can customise settings, including the info you need when you first connect in the morning, touch commands and app notifications.
âIts lightweight and comfortable soft silicone ear-bud is built for continuous wear, with IPX2 water-protection and all-day battery life3,â Sony said.
Itâs available in Graphite Black and the innovative case doubles as a charger, so you can simply pop it in when you need to recharge.
It also unveiled the Xperia Eye, a wearable camera that acts as your personal sidekick, capturing everyday life moments with a 360 degree wide-angle lens.
Unveiled at Mobile World Congress (MWC) in Barcelona, the Xperia Eye can be attached to clothing or worn around the neck.
It forms part of a suite of connected gadgets designed to free people up from their phones.
Sony said the Xperia Eye is âa vision for a personalised assistantâ and joins three other smart gadgets that are connected to a Sony smartphone that acts as a hub, feeding information to them such as notifications.
These are Xperia Agent, Xperia Project and Xperia Ear.
Xperia Agent is a security camera-style device which acts as a home monitoring system, keeping an eye on whatâs going on around it and projecting notifications fed to it from a Sony smartphone onto surfaces around it.
âIt will provide you with useful information, communication assistance and home appliance controls,â Sony said.
Xperia Project projects an interactive interface onto any clear surface, meaning you can manipulate images, webpages and screens you would usually find on your smartphone, onto a hard surface.
Sony claims this projected image will respond to touch, voice and gestures just as someone would interact with your smartphone screen.
The Xperia Ear is a wireless earpiece that will update you with any missed calls or messages as soon as you slot it into your ear.
âIt will navigate you to where you want to go and make your life eye-free and hands-free,â said Sony Mobileâs President and boss, Hiroki Totoki.
âIt is also powered by Sonyâs voice technology and will respond to a number of commands.â
The wearable camera is the first time Sony has shrunk its image sensing and camera technology into such a small device.
You may get confused about various types of walkie talkies on sale in the UK, or not be certain what type of walkie talkies you require , and what youâre legally allowed to use in some other countries that you plan to visit, or in your part of the world. Firstly, it is important to have in mind that any type of walkie talkie will function in any part of the world.
A walkie talkie is used on a channel that has a frequency associated with the walkie talkie. In other words, if a channel has a frequency different from that of a walkie talkie, then the two will not work together.
License Free Walkie Talkies
There are 446 license-free frequencies that can be used for leisure radios such as, Motorola talkabout, Binatone and Cobra radios. However, there are eight PMR466 frequencies or PMR466 channels that can be used.
The spacing between each of these frequencies is 12.5 kHz. As the system name suggests, PMR446 frequencies are located around 446MHz and are in the UHF segment of the radio range.
Even though they are not necessarily authorized, PMR446 frequencies are harmonized for use across European countries.
High level use of PMR446 frequencies may result in some annoying problems. However, these can be reduced or rectified by changing the frequency of the PMR446. Other systems such as DCS codes and CTCSS tone can as well help in alleviating the problems.
In view of the possible high use of the frequencies and the PMR446âs unlicensed nature, the scheme is not appropriate for individuals who need to gain access to frequencies at specific times and locations or for life use.
These are simple, short-range walkie talkies that conform to the European Union-wide PMR446 standard and can be used by any person in the United Kingdom or European Union without a license. These types of radios are commonly sold in High-Street shops as well as in most radio outlets.
Commonly known as “PMR446sâ radios that meet these standards usually have a power output of 0.5watts, meaning that their range is lower compared to the powerful business walkie talkies that are a licensed and which feature power outputs of 4-5 watts. All of them make use of the same eight channels and this causes problems sometimes if a given area has a lot of radio users using these channels.
Licensed Walkie Talkies
Two Way Radio for Business
Licensed handheld walkie talkies can have a power output of 5 watts, but “license free” PMR446 walkie talkies can only have 0.5watt power output. Therefore, the licensed walkie talkies usually have a better signal penetration and better range in buildings.
A majority of businesses prefer using a licensed 2-way walkie talkie system because, in spite of the benefits of license free walkie talkies (PMR 446), they have some downsides (like lower power, a short range and interference) which make them less effective than licensed business radio systems.
Taxi as well as other transport companies, and large sites like factories or hospitals, and businesses situated in a number of different locations are excellent examples of circumstances where a licensed radio system may be a favored option.
These situations require more powerful radios as opposed to hand-held portable walkie talkies with low frequencies. If the system of your radio relies on vehicle-mounted radios or a base station, a licensed radio system is necessary.
If you want start using a radio system in your business, then you will have to get a license from Ofcom. In other words, Ofcom is a company that controls who can transmit on what frequency and where, to ensure that different users donât interfere with each other.
Business radio system users range from factories and taxi companies, to industrial sites, hospitals, transport operators and care homes. To begin Ofcomâs licensing process there are a number of requirements that a business must first of all fulfil.
Ofcom license is especially important regarding official radio users like police, military, railways, air traffic control and emergency services, railways, etc. Radio systems that meet specific standards can be used without any license from Ofcom. For many walkie talkie users, license free radios will be okay. And if you are in need of a license, it isnât that expensive or complicated to get one.
The UK simple license is a license issued by Ofcom and gives holders the right to use more powerful radios. It is effectively a license to use powerful radios any place in the UK, using give frequencies which are shared by anyone using this license. This license is easy and quick to apply for, costs about Â£75 per organization, and is valid for 5 years.
It is the only option for people who need to use their radio systems anywhere in the United Kingdom, and is ideal for most business radios users.
This license provides you with specific frequencies or frequency allocated just for your organizationâs use within a given geographical area. The cost of the license varies from moderately cheap in most locations in the UK (about Â£100 annually), with the cost heightening in key cities, more so London, where the demand for radio frequencies is very high, going for up to more than Â£500 per year.
Radios that are designed to use dedicated frequencies such as this, should not be used outside of the licensed area, since the same frequency will possibly have been assigned to somebody else and you will therefore be causing interference to them.
UK Business Radio Suppliers License
This is a license for hire companies and radio equipment suppliers. It allows these companies to do short term radio hire via a set of frequencies allotted to radio hire companies. It also allows these companies to provide âdemoâ radio systems to potential customers and to undertake repairs to radio systems.
When these companies hire out their radio equipment, itâs hired using this license, so that the person hiring it does need to worry about licensing issues.
The importance of walkie talkies and radios in the UK and other parts of the world cannot be overlooked. Not only are these gadgets important in everyday communication, but they continue to play a very crucial role in the development of other communication tools. A lot of useful information about radios and walkie talkies has been highlighted in this article for the benefit of radio users and the public in general.
We have all watched star trek orÂ ‘Allo ‘Allo!Â (bare with us) and wondered how we can understand all the different languages. Well it is all down to the tardis! It translatesÂ the persons speech from their mouth to your ear so you can understand in perfectÂ English.Â But nowÂ you don’t need to keep a Tardis about with you, as they have designed a earpiece that can translate different languages, just pop it into your ear and talk to some foreigners. You can find the original article here.
How many times did you give up on befriending a foreign national due to language problem? Even if you have befriended the person who doesn’t speak your language, it becomes difficult to converse with him or her. You always feel Â the need to have a translator, whether it is a face-to-face conversation or a telephonic interaction.
Technology has the solution for any or every kind of problem in this world. It is advancing day-by-day so language barrier can no longer make you behave like an alien. Communicating with a foreign national in real time is no longer a pain as a company has come up with the Pilot earphones that let two people who speak different languages communicate smoothly with each other.
So there won’t be any awkward pause the next time you speak with your friend who doesn’t know your language. Also, there is no need to consult either a dictionary or search online the next time you want to talk to your French or Spanish friend.
In fact, Wavery Labs, a New York-based company that launched the wireless earphones, will add more languages as soon as possible. Currently the earphone translates only three languages – English, French and Spanish. The company will soon add Italian to its list.
You must be wondering about its functions. It works when you connect the earphones to two different people, speaking different languages and translates what they say in the ear.
Waverly Labs calls it the first ‘smart earpiece’. But it hasn’t disclosed much detail about how it works. According to the company, the earphone uses “translation technology” embedded in an app. The Pilot will cost $129 (around Rs. 8,646) and will be available for pre-order on their website.
This article is from the well trusted tetra-applications.com website This story is about the Belgian tetra system, called ASTRID, running close to full capacity during one of the biggest disaster events that Belgium has seen. The system had a few stuttering moments, but with the unpredictable surge in traffic after the event, this is to be expected. To learn more read below and see what they are planning to doâ¦..
During last week bombings, ASTRID, the Belgian Public Safety TETRA network encountered a huge increase of traffic which resulted in a temporarily capacity problem.
ASTRID, the TETRA radio communications network in Belgium, used by theÂ security forces, has not functioned as desired, after the attacks of last week Tuesday, several media announced. Also the GSM network was down and therefore in some cases WhatsApp had to be used by the security forces.
Commissioner General Catherine De Bolle has requested an investigation. Several media mentioned that for many hours the system would not have worked. Therefore, the rescue operations of the police at the airport were much more difficult and more chaotic than it should be. Spokesman Peter Dewaele of the federal police admits that some things did not run as planned.
“After analyzing the situation, Astrid requested all user organizations to sit around theÂ table in order to examine the communication after the attacks of 22 March. Meanwhile, concrete action and specific recommendations were specified,”
According to ASTRID, the exceptional nature of the emergency caused that some masts of the radio network could not be reached for a short period of time, because of the enormous increased traffic. Therefore communication was not possible, Astrid announced.
“From across the country emergency and security services were asked to provide assistance, which led to an extraordinary radio traffic. On specific requests of many of these organizations Astrid registered hundreds of extra radios to the network. Also the failure commercial mobile phone networks has led to a significant increase in radio traffic.”
“Not flat, or capacity”
Astrid points out that the control rooms/emergency centers were particularly busy in Brussels and Flemish Brabant, but they continue to function properly. Also the alarm system for calling the volunteer fire brigade received extra traffic, but the system worked without any problem. Astrid also installed a mobile-transmission tower in order to strengthen the radio network in the Brussels area.
On a nationwide level, the radio network was still operational, but especially in the Brussels region there were severe capacity challenges,” Astrid notes. “Shortly after the attacks the nearby Astrid masts reached their maximum output, which resulted in difficult communication during some crucial hours. Some users had no access to their talk groups.”
“On Friday March 25th we discussed the situation with the End User Advisory Committee. Concrete action points and recommendations for the use of the radio network and training were determined,” concludes Astrid.
Have you ever stopped to think where headsets really came from? Well, they first headset was used in the 20th century; however, the technology has significantly improved over the decades. Shockingly it did not occur to anyone that headsets could be used to listening music on devices. Read more about the invention of radio headset in this article.
Headsets are an important accessory and it is very clear that they have indeed managed to save an argument over the years. Headsets enable you to listen to audio/music without having to get in the way of anyone else. In this time and age, we use all types of headsets from tiny earplugs with a wireless Bluetooth technology for listening to music in the streets, to big leather-padded cans to listen to music at home. Gaming headsets are increasingly becoming popular as many of them today come outfitted with a microphone, hence allowing the users to speak with other relatives, gamers and friends.
Headsets can give the user a great sound quality, there isnât any sort of interruption between the ear and the sound, external sound is blocked out and there is absolutely nowhere for it to dissipate, more so if you invest in a pair of high quality headsets which are plentifully available nowadays. As a matter of fact, if you take a walk back to the early 20th century right before amplifiers had been invented; sensitive headsets were the only means that was could be used to listen to music/audio.
Accurately speaking, the very first headset dates back to the telephone early adoption and by 1920 radio headsets were being commercially manufactured. These were mainly used by professionals and not by the public. There exists an argument over who was first person behind the idea to dwindle down loudspeakers and move on to attach them on our heads but the earliest living example dates back to around 1911. This was far from the headsets we use presently with no padding for comfort and a very low sound quality. They were used by telephone exchanges and radio operators.
Headsets were the only way to listen to audio files before the development of amplifiers. Headsets were invented in 1910 by Nathaniel Baldwin, an American born to a Canadian father and an American mother. Baldwin developed the first, truly successful set in 1910 by hand in his kitchen and later sold them to US Navy.
Baldwinâs headsets made use of moving iron drivers that came with either balanced or single ended armatures. The requirement for high-sensitivity meant damping could not be used, and hence they had a crude sound quality. These early models did not have padding, and oftentimes ended up producing excessive clamping force on the heads of persons wearing them.
In 1944, John C. Koss a jazz musician and an audiophile from Milwaukee, US, designed the first stereo headset. Previously, headsets were used only by radio and telephone operators, as well as persons in related industries. The 3.5-mm phone connector and radio headset, which is commonly used in portable applications today, has been in use since the Sony EFM117J radio that was released in 1965.
This is an interesting review of a study of how effective ear plugs are in the workplace. We take for granted that people working in loud factories wear protective hearing, but many of the clubs, pubs, concerts and festivals that have as equal levels of sound. As they say below, it isnât mandatory to wear ear plugs in such environments, which defies common sense and possibly causes more damage than we understand. Here you can find the original source of the review.
A review of the literature turned up only two high quality studies that looked at whether wearing earplugs to music venues will prevent hearing loss and tinnitus directly afterward.
Dr. Wilko Grolman and colleagues at University Medical Center Utrecht in The Netherlands searched for published studies containing the keywords âmusicâ and âearplugsâ and screened 228 resulting papers. All but four were not eligible for inclusion in the review and only two were highly relevant and did not have a highÂ riskÂ of bias, in the reviewersâ estimation.
Two studies simply examined people who chose on their own to wear or not wear earplugs, while two randomized controlled trials tested what happened when participants were assigned to wear earplugs or not.
Two studies reported on hearing loss and tinnitus while one only reported hearing loss.
The two best studies were different enough that the researchers couldnât combine their dataÂ and analyze the results, the reviewers wrote. Both included 29 concert attendees and performed audiometry before and after the concerts. In one study, participants were allowed to choose whether or not they wore earplugs, and only three chose to wear them.
âFrankly, with such a small comparator group between three subjects and the others, it would be hard to assess validity of plugs or not,â said Dr. Jennifer Derebery, president of the Los Angeles Society of Otolaryngology and lead author of the first study.
âWe had trained them all in proper insertion, and encouraged but not required wearing them,â Derebery told Reuters Health by email.
In the other study, 15 participants were assigned to the earplug group.
In general, wearing earplugs did reduce hearing loss directly after the concerts, but did not eliminate it completely, as reported online March 3 in JAMA Otolaryngology-Head and Neck Surgery.
âEar plugs are effective in preventing hearing loss when they are used both correctly and consistently,â said Colleen G. Le Prell, the Emilie and Phil Schepps Professor of Hearing Science at the University of Texas at Dallas, who was not involved in the review.
âThis systematic review highlights the very limited data on prevention of recreational music-induced hearing loss using earplugs,â Le Prell told Reuters Health by email.
âAt younger ages, loud toys, firecrackers, loud video games, personal stereos or personal music players, lawnmowers or leaf blowers, sporting events or air shows, or other non-music events might be more likely noisy activities than music venue attendance,â Le Prell said. âA significant number of youth are also involved in target shooting activities, which children can get involved with through Boy Scouts or other organizations.â
For teens and young adults, repeat exposures to amplified music at clubs, concerts, festivals, or other related events may damage the inner ear and result in hearing loss, she said.
âMost concerts are both loud enough, and long enough, that they are likely to exceed the total daily exposure allowed by workplace safety regulations,â she said. âSound exposure also commonly occurs via loud music delivered via personal listening devices, at sporting or other recreational events, and at jobs that involve lawn-mowing, use of power tools, or construction services.â
For workplace noise exposure, âwe are not doing a very good job achieving correct and consistent use of hearing protection devices (HPD), including both ear plugs and ear muffs,â she said.
âIn the United States, it is relatively uncommon for music venues to provide ear plugs at no charge,â Le Prell said. Even if they were provided, people may need to be educated in why using them is important and in how to use them correctly, she said.
âAs a neurotologist, it really is upsetting to see these kids coming in younger and younger with a completely preventable hearing loss,â Derebery said.
The first two way radio made its way into the Western market in 1923. Despite its late appearance, the device was primarily conceptualized in 1907 as part of a military communication program. There has been some controversy regarding who first made the two way radio. However, most people seem to attribute this invention to Frederick William Downie, Senior Constable of the Victorian Police in Australia. In this article, we take a look at the path that this radio has traversed through the ages- from 1907 to the 21st century.
Origin of the 2 Way Radio
In the 1900s of Australia, the 2 way radio was installed in police cars and used as means of communication for the purposes of surveillance, checking locations and keeping team mates posted on updates. This was a breakthrough invention for the police as it caused an instant increase in the overall efficiency of working. From instant reports to integrated surveillance systems, the two way radio was pivotal in improving the effectiveness of the Australian police force. Suddenly, people discovered the ease with which the law of the land could be enforced and security could be maintained. This was the one method by means whereof many lives were saved and the state became one of the safest places in the world. Needless to say, the overwhelming response that the two way radio received propelled it to fame and it then became one of the most popular methods of law enforcement in the world.
The popularity of the 2 way radio rose steadily over the years. From police cars, the deviceâs many uses branched out and it became a part of navy ships and even military operations. Since many mariners and platoon commanders faced problems of communication, the convenience of the two-way radio was highly appealing to all. Transmissions of messages became convenient and there was a certain smoothness that the radio communication afforded to the operations.
The Creation of the Modern Day 2- Way Radio
The global status that the 2 way radio enjoyed is also one of the biggest reasons for its adaptation into various communicative derivatives including the modern day walkie talkie and even the modern cellular phone. Before it achieved this global, improved status; however; the two way radio was one of the most rudimentary objects that could be used in police surveillance. The first radio was so heavy and cumbersome that it used to take up the entire backseat of the police car. While it might have had many benefits, the sheer size and volume of the object made it difficult to catch and apprehend criminals at the earliest. With technological improvements and the right incentive, the two way radio has improved leaps and bounds. What once used to occupy almost half the car space can now be fitted into a pocket with ease, while fulfilling the same purpose as its predecessor.
Uses and Benefits of the Modern Radio
From the 1900s to the 21st century, the two way radio has made immense progress. What earlier was used exclusively by the police had now become an instrument in the civilian space. From law enforcers to children, almost everyone could purchase walkie talkies and use it. This was the first time that the world saw the walkie talkie as an instrument of recreation. These days, walkie talkies are used as much by kids for their games as they are used by professionals in emergency situations. From medical EMTs to firefighters, walkie talkies have become a regular in the cityâs working scenario.
One of the biggest uses of walkie talkies these days are in firefighting operations. Coordinating external help and amassing the required support for the rescue operation are common functions that are carried out over the two way radio system that was once pioneered by Downie. Over and above its use in emergency situation, the two way radio is also used for the basic purposes of communication and organization in construction sites, among municipal workers and in many facets of working companies.
When one considers the many benefits that the 2 way radio has brought to the world population, one cannot help but pay homage to the genius of Frederick Downie. While the remarkable transformation through the ages is something that we must all bear in mind, it is undeniable that the blueprint was an instance of pure creative and imaginative genius. There are multiple uses of the walkie talkie in the modern world today. From communication in emergency situations to its importance for recreation, the modern two way radio is arguably one of the most important facets of communicative technology. All in all, the genesis and development of the two way radio is undoubtedly one of the most outstanding creations of the previous century.
This article was originally posted on thestage.co.uk and they highlight that the use of earpieces for prompting actors is increasing, this very simple technology used in this way makes people uncomfortable. But why? Earpieces these days are so small that people standing really close to the wearer would have literally be standing on top of them to see it, let alone be 15m away. Maybe itâs the thought that the actor should be able to remember their lines? or that bringing undue technology into the theatre would decrease the value of it?
Car crash theatre. That’s how a colleague described Al Pacino’s return to the Broadway stage in David Mamet’s new play,Â China Doll.
For those who may not have been following the story,Â Pacino’s return to Broadway has been blighted with problems âÂ most notably, reports that he cannot remember his lines. Teleprompters have been installed around the stage and Pacino wears an earpiece,Â even after the production’s opening was delayed.
Pacino is not the only star on Broadway this season getting help with his lines. If reports are to be believed,Â Bruce Willis inÂ MiseryÂ is also being given a helpful prompt or two through an earpiece,Â as are Cicely Tyson and James Earl Jones inÂ The Gin Game.
However,Â Pacino seems to be the main focus of press criticism and a large part of me feels sorry for him. Undoubtedly, he is under intense pressure âÂ despite past success on Broadway, he is in danger of being remembered best, if not most fondly, for China Doll.
The sign outside the Schoenfeld Theater quotes a line from Pacinoâs character in the play: âCan you just tell me whatâs happening?â In the circumstances, it seems both ironic and ill-judged. Meanwhile, around the corner at the St James Theatre, the comedy musical Something Rotten has put up a cheeky, if somewhat venomous, sign on its canopy, saying: âAll actors promise to memorize most of their linesâ.
For any actor,Â it is terrifying to think that one day, no longer being able to remember your lines, you may not be able to work.Â TheÂ interesting point about this situation is that the media have been far more forgiving ofÂ other actors: Tyson and Jones have been treated as beloved national treasures. At 90 and 84 years old respectively,Â they have a few years on 75-year-old Pacino and therefore it’s may be understandable that they require prompts. A similar response greeted Angela Lansbury who,Â inÂ Blithe SpiritÂ on Broadway and in the West End,Â wore a cleverly designed hat which incorporated ear pieces.
Despite criticism of Pacino’s use of prompting devices,Â China Doll has not seen a slump at the box office. AudiencesÂ seem to be happy to pay top-dollar ticket prices to see their favourite stars on stage whether they know their lines or not. Does this mean we accept that teleprompters and earpieces will become inevitable in theatres? Has a precedent now been set for Hollywood actors to slip into a play during a gap in their moviemaking schedules believing they donât need to spend time learning lines? Will audiencesÂ continue to tolerateÂ this because of that starâs status and the opportunity to see them live?
I hope not: knowing lines is a fundamental skill in the craft of acting. I want to see star actors on stage but I also want to see and remember them at their best. And the reporting of apparent production problems does nothing to help a theatre industry already faced with an audience which may expect or hope for a disaster on stage to tweet about; the resulting social media noise overshadows anything else to do with the play itself.
China Doll is â on paper â a hit show, with its headline star bringing in high weekly grosses that will likely see the play recoup. But in the long term that should not be the only way to judge the success of a production.Teleprompters and earpieces are changing theatre, and not necessarily for the better