Thursday, March 12, 2015

What Type Of Kenwood Radio Earpiece Should You Use With A Kenwood Radio

Although there are multiple types and designs of Kenwood radios out there, there are only two earpiece connectors compatible with these radios. Kenwood has been able to design their earpiece connectors in such a way that they are compatible with all their vast types of radios. A large percentage of Kenwood radios utilize the 2 pin earpiece connector. Among the most popular radios using the 2 pin earpiece connector include TK3000 and TK3300. The difference between the two-pin connector and the multi pin connector is straightforward. The former features two pins while the latter features multiple pins. However, their performance may not be the same depending on usability and the type of Kenwood radio.

The Two-Pin Earpiece Connector

The earpiece of the Kenwood 2 pin connector is featured by an incredible in-line push-to-talk button (PTT) with an in-built microphone. In addition, it comes with a complete clothing clip and a surveillance acoustic audio tube. This Kenwood earpiece connector can be used with most of the Kenwood radios and it normally sells out at a fair price.



This Kenwood radio earpiece connector is Kevlar reinforced for added security. It also features a secure fit tube connector as well as the lapel clip button. These features integrate themselves easily thus ensuring that the final sound output is of high quality. They are also designed with hi-tech microphones which help in reducing the noise level. Unlike other connectors, its wire PTT (microphone) and acoustic tube are separate. This is meant to reduce the amount of vibrations and echoes produced which would otherwise compromise the sound quality.



When it comes to style, the Kenwood radio earpiece connector is a RoHS compliant connector which has the ‘Over the ear’ FBI style acoustic tube which helps in monitoring sound levels. When you see that the plugs have worn out, there is no reason to worry because these pieces feature replaceable mushroom plugs. This is a changeable earpiece connector which allows you to change the connector to the accessory available. Apart from being compatible with Kenwood two-pin, it also works well other devices such as Motorola 2 pin and Icom 2 pin.

The Multi-Pin Earpiece Connector

The Kenwood multi-pin connected earpiece is a unique and tech savvy type of earpiece. But the earpiece is the same to the 2 pin connected earpiece in other areas. For example, both of them share very important features crucial to the audio type produced. Some of these identical features include an in-line PTT button, the surveillance acoustic tube and the clothing clip. When it comes to its value, it is a little bit pricy than the two-pin version.

The Kenwood Radio Earpieces

The performance and aesthetics of every Kenwood radio earpiece can be fostered by spending a little bit more on optional features such as the ‘swivel’ ear loop. Also, you can enjoy better use and comfort by including a steel clothing clip that reduces noise. Kenwood composes their earpieces from high quality cables featuring a toughened surface. The durable surface protects the cable from accidental strain and offers exemplary cushion to wear and tear. These pieces are lightweight allowing them to be carried and used in wherever you travel. They have been designed to withstand consistent strains common with all earpieces making it easier to be used in any environment.

Actually, the types of connectors which are compatible with Kenwood radios are limited compared to its counterparts. Nevertheless, the Kenwood two-pin and multi-pin connectors provide an excellent performance in all Kenwood’s radios making other connectors of no importance. But some people would say it is worth trying using other connectors to taste the difference. Kenwood radio earpieces consist of polycarbonate microphones which cushions your ears from unexpected high sound levels. When the acoustic tube gets damaged it can be easily replaced ensuring that communication remains uninterrupted. Also, the button or the controller is strategically placed allowing easier management of communication.

Most of Kenwood 2 way radios may only be connected by the two varieties of connectors. Thankfully, their equipment is among the best and it can hardly be rivaled. If you would want to have a Kenwood radio for your company, it is futile searching other compatible connectors because the aforementioned two works superbly. Many companieskenwood because of these hi-tech unparalleled features. Remember that, to gain advantage of uninterrupted communication, safe audio output and additional exclusive capabilities you will have to consider a good earpiece connector for your radio.

Monday, March 9, 2015

Here Are More AM Suggestion

This can be found over on this site, please enjoy

I thought you should know that the FCC has just licensed a digital TV station with an ancillary service in the form of an analog FM radio station. This new service can create thousands of powerful FM radio stations, which can be leased to current AM radio stations now struggling with broadcast difficulties.

Recent studies have shown that the 0.62 MHz now unused by DTV stations can be efficiently employed for other services, with no interference to or from either the DTV reception or, for example, FM radio reception. No new spectrum, or change in current spectrum use, is required. FM receivers, which can receive all VHF and UHF TV stations’ analog audio, were readily available since the 1980s from many manufacturers, and could easily be again.

The first DTV station licensed to broadcast this added analog FM is W26DC-D in New York. No interference of any kind has been observed. It uses the upper 200 kHz of the digital channel for monaural analog FM, and is well received by the older FM radios mentioned above. (Stereo FM analog, and digital radio, could also be broadcast.)

The FCC had previously shown concern that this added ancillary service might adversely affect new cochannels, but this has been disproved for the specific conditions employed.

This extended use of DTV spectrum could solve the problems of current AM radio stations by allowing them all to migrate to this new FM band, with no need to disturb any existing service. All that is needed is an FM transmitter output injected into the antenna line of a full- or low-power digital television station.

I hope advantage can be taken by the radio and television industry of this novel spectrum use.



Richard D. Bogner

Retired, Former President and Owner

Island Broadcasting Co.

Roslyn, N.Y.




ENFORCE THE RULES


As a major player in the world of AM radio and as one who is vested deeply, I am continually amazed at people who are not invested trying to tell us how to live.

AM radio in itself needs no improvement!! It works just fine. The problem is simple: The FCC has dropped the ball and fails to recognize the problem is the environment surrounding it. It is man-made interference that has caused the problem, and if the commission had enforced the incidental radiation rules, we would not be compromised as we are today.

All these hearings and meetings always attack the AM spectrum itself. It is just plain wrong! Enforce the rules and make sure radio manufacturers build good radios.

I listen to AM with my Icom Ham Radio with its digital noise blanker and love every moment of it.

Tom King’s article (“King Lays Out ‘Critical Steps’”) in the Sept. 24 Radio World was right on â€" except for C-Quam, which was a disaster.

Just because the inventor of the best stereo for AM was a eccentric old man and didn’t have a ton of money to spread around in the propaganda war The Commission selected C Quam. They said it was in the public interest... The Washington bureaucrats wouldn’t know public interest if it hit them in the backside. Face it â€" AM broadcasters, we have been screwed by the government. Maybe if some of these high-test consultants would get their heads out of their backsides we could salvage AM.

God bless you, Mr. King, but the Kahn system rules.



Ed De La Hunt

Owner

De La Hunt Broadcasting

Kelliher, Minn.




LATE TO THE PARTY


The problem with NextRadio and iHeartRadio (“Coleman Says Demand ‘Strong’ for NextRadio,” radioworld.com, Aug. 1) is that they are a few years too late to the party.

All of the college kids I know (and I work for a college radio station) use the free app from TuneIn Radio.     If you’re not on represented on TuneIn, you’re not really streaming anyway.

Students don’t like to have a separate app for every station they listen to. That just causes clutter on their device … and TuneIn even has some AM stations represented.



Bart Jones

Chief Engineer

KFKX(FM)

Hastings College

Hastings, Neb.


http://www.radioworld.com/article/here-are-more-am-suggestions/273542

Friday, March 6, 2015

TURTLE BEACH ELITE 800 REVIEW

Turtle Beach’s Elite 800 wireless headset for PlayStation 4 screams “flagship.” It’s a gorgeous piece of kit, all shiny black with lush earpads and rounded edges. Set the free-standing headset on its charge base, which doubles as the wireless transmitter, and it’s an eye-catching addition to an entertainment center. Pop ‘em on your head, and the feeling of quality carries over. Save for a handful of notable flaws, this is perhaps the best headset that Turtle Beach has ever produced.

We’ll start with the form factor. The Elite 800 feels solid from the moment that you first pick it up. It’s not so heavy that it’s uncomfortable resting on your head, but nothing about it feels flimsy or poorly put together. The thick plastic is also adorned with flourishes of metal and blue plastic, and the thick earcup padding looks eminently comfortable even from a distance. There isn’t even a visible mic jutting out from the thing, though there are actually two â€" they’re invisible, built directly into the unit.

If you wanted to describe the headset in one word, that word would be “sleek.”

The stylish design sensibilities carry over to the charging base as well. The oval-shaped unit is topped by two small depressions, one of which is fitted with magnets and charging contacts. In charge mode, the headset sits upright, with each earcup slotting into its own shallow well.

The magnets do a good enough job of sliding the contacts into place, but it’s relatively easy to set the headset down in the charging bay incorrectly. Improper placement prevents the Elite 800 from charging, so it’s important to be careful when setting it into the cradle. One handy tip that Turtle Beach’s documentation doesn’t mention: If you hear the headset’s power cycle on, then off, after you set it down, you know it’s charging.

TurtleBeach Elite 800 review hinge macro

The base station connects to a PlayStation 4 (it also works with PlayStation 3, and with mobile devices using Bluetooth) via a USB cord, for power, and an optical audio cable, both of which are included. The optical audio is expected, but the fact that the base station/transmitter draws power from the console isn’t ideal.

The PS4 has only two USB ports located on the front of the machine, and one of them always has to be occupied if you’re using an Elite 800. Couple that with the fact that the PS4’s DualShock 4 controller already doesn’t have the best battery life, and you can see where problems might start to crop up.

That’s not the only problem with the base station, however. The PS4 doesn’t provide a charge to the transmitter when the console is completely powered down. Sony does offer a “Rest Mode” that continues to send a charge through connected cables, but it’s all too easy to shut the whole thing off and stop charging the headset. It’s possible to wire the Elite 800 directly into another power source, such as a computer, but this problem could just as easily have been solved by including a wall plug power adapter for the unit. As is, you’ll probably want to go grab one for yourself.

Power is also sometimes a problem with the headset itself. Turtle Beach promises 10 hours of life on a full charge, but that number comes down when features like Active Noise Cancelling are used. If you’re prone to participate in marathon gaming sessions, it might be a good idea to keep a backup pair of headphones handy. The headset also does a terrible job of communicating when low on battery power; instead of simply shutting down, the audio starts to crackle and fade in/out, giving the impression that there’s signal interference.

Despite these issues, the Elite 800 makes a strong case for itself in the realm of overall performance. It’s comfortable to wear thanks to the thick, padded earcups and additional padding up top. The material is surprisingly breathable, keeping ear sweats at bay, but discomfort sometimes crops up during especially lengthy sessions thanks to a snug fit that presses the inside of the headphones against the tips of your ears.

In terms of sound, the Elite 800 delivers dynamite performance. Positional audio, enabled by DTS Headphone:X 7.1 virtual surround technology, is among the best we’ve heard in a two-driver headset. It’s easy to pick up on an audio source by both location and distance, even when you’ve got heavily layered audio blasting through the headphones. For multiplayer games like Destiny or Call of Duty: Advanced Warfare, there’s a definite advantage in being able to tell where potential threats are coming from.

TurtleBeach Elite 800 review controls

The Elite 800 also has a multitude of settings to fiddle with. The earcups and snug fit go a long way toward providing passive noise cancellation, but there’s also an Active Noise Cancellation mode and a range of mic monitor settings for different environments. Active Noise Cancellation definitely isn’t for everyone, but it’s handy â€" as is the variable mic monitor â€" in all different types of playing spaces.

As usual, Turtle Beach’s own “Signature Sound” setting provides the best overall virtual surround experience. There are four categories of EQ settings, for Games, Movies, Music, and Stereo, and multiple tuning options in each, with more available to program into the headset using a Windows-connected Elite 800 and the Ear Force Audio Hub app.

It’s a lot like the company’s Xbox One-friendly flagship, the 500x, but with a very important difference. The Xbox cans communicate which setting is active using high/low beeps that practically require the user to have a cheat sheet on hand. The Elite 800 addresses this problem, using a pre-recorded voice that communicates settings changes as you make them.

While it’s very handy, cycling through the headset’s various settings can also be a pain. Everything from EQ settings to power to mic monitor to Bluetooth on/off (the Elite 800 can pair with mobile devices) is managed using four-way touchpads on both the right and left earcups. It’s convenient, but the controls are also extremely sensitive, to the point that an errant brush along the side of your head can too easily change things up.

Overall, the Elite 800 is one of the best headset solutions available for PlayStation 4. The build quality, the audio quality, and the added features â€" particularly Bluetooth pairing (take calls while you game!) and membership to Turtle Beach’s Elite program (mainly for the two-year warranty) â€" amount to a superb package overall. It’s not without its shortcomings, but in the inconsistent market of wireless headsets for next-gen consoles, the Elite 800 is a standout option. For a premium price, of course.

Highs



  • Fantastic, powerful sound


  • Stylish design


  • Lots of handy features


  • Extremely comfortable to wear




Lows



  • That quality comes at a premium price


  • Charging issues if you use power save with your PS4


  • Headset-mounted controls are less than ideal




Read more: http://www.digitaltrends.com/headphone-reviews/turtle-beach-elite-800-review/#ixzz3Qb7dL1Nz

Friday, February 27, 2015

Cambridge United v Manchester United: Sepura kit out U’s stewards with new radios in time for big match

SEPURA has kitted out Cambridge United stewards with radios ahead of tomorrow's big FA Cup with Manchester United.

The portable DMR radios replace the club's analogue communication system and will be officially used for the first time at the R Costings Abbey Stadium when Richard Money's side face the Red Devils in the sell-out fourth round fixture.

U's chief executive Jez George said: "The forthcoming FA Cup match is one of the biggest event in the history of our club, we are aware of the global exposure that it will give to Cambridge United and need to ensure that everything runs smoothly and successfully on the day.

"Thanks to our new Sepura digital radios we'll be ready to overcome any challenges that may arise during the event."

Read more: http://www.cambridge-news.co.uk/Cambridge-United-v-Manchester-United-Sepura-kit-U/story-25907956-detail/story.html#ixzz3Q7DHgeWn

Monday, February 23, 2015

What is an Acoustic Transducer?

From Wisegeek.com “What is an Acoustic Transducer?” (19 January 2013)

An acoustic transducer is an electrical device that coverts sound wave vibrations into mechanical or electrical energy. They have various practical applications, including sound recording and sound playback. A specialized model, called an ultrasonic acoustic transducer, can be used to measure distance to, as well as the mass of, an object.

Common types of acoustic transducers used in sound recording include microphones, earphones, and guitar pickups. These create electrical energy when moving parts inside the transducer, such as electrical plates or ribbons, are exposed to sound vibrations. The electrical energy produced inside the transducer is sent first to an amplifier.

The amplifier then sends this energy to its final destination, usually a loudspeaker or recording device. The loudspeaker reproduces the sound at a level that the human ear can hear. A recording device will retain the electrical signal information. The recorder will send the stored signal to a loudspeaker during playback.

An ultrasonic acoustic transducer can be used to measure distance or the mass of an object. The most common type is the piezoelectric acoustic transducer. These include a piezoelectric ceramic element that creates and distributes ultrasonic sound waves.

Sound waves travel to an object from a piezoelectric transducer through material called a couplant. The couplant is usually water. Sound waves bounce off the object and return to the transducer in the form of an echo. The time it takes for these echoes to return to the transducer is used to calculate the distance to the object.

Underwater sound navigation and ranging (SONAR) is a common use of an ultrasonic acoustic transducer. SONAR uses directional beams of sound waves. This enables the SONAR operator to determine the direction and distance to an object.

SONAR systems can be active or passive. An active system sends out sound waves and listens for echoes. A passive system listens for noises made by ships, fish, and landmasses.

An electromagnetic acoustic transducer (EMAT) is another form of ultrasonic transducer. Instead of a ceramic element, an electro magnet is the main component of an EMAT. This is a type of non-contact, or non-destructive transducer. Unlike piezoelectric transducers, EMATs do not need a couplant to carry sound waves. Instead, two electromagnetic fields are generated to disburse ultrasonic waves.

EMATs can easily be used almost anywhere since no liquid is needed. For example, EMATs can be used to check for flaws in underground pipes. A downside to EMATs, compared to piezoelectric transducers, is that EMATs create weaker sound fields.

Monday, February 16, 2015

Jawbone earpiece makes it easier to love smartphones

This is located over on this www.thestar.com, please enjoy

Jawbone began making it easier to love Siri, Google Now or other virtual assistants in a hint at the future portrayed in the Oscar-nominated filmHer.

The San Francisco-based company behind sophisticated and stylish wireless ear pieces released a new ERA model packing big technology in a diminutive form and enabling users to speak more naturally with software on their mobile devices.

"I hope they don't fall in love with their operating systems, but they will at least rekindle a relationship with voice commands," Jawbone audio product manager Gernard Feril said while providing AFP an early look at the new ERA.



Feril was making a playful reference to the Spike Jonze film Her starring Joaquin Phoenix, who plays a man who falls in love with a personal computer operating system.

Advanced Siri and Google Now software, which combine natural language exchanges with contextual awareness and even anticipating what users might want, have created a place for an ERA ear piece with enhanced technology for speaking to smartphones as one would a person, according to Feril.

Jawbone built in wide-band audio, high-quality microphones, and NoiseAssassinsoftware to block out unwanted sounds to make voice quality closer to what is found in Internet telephone calls than in typical ear pieces.

Being able to speak commands and have spoken exchanges with virtual assistants through the ear piece frees people to either ignore smartphone screens or use them for other tasks, such as e-mail, games or maps.

"This device has become so powerful," Feril said of the smartphone in his hand, "that holding it to your face limits what you're doing."

And, as screen sizes of mobile devices have grown, they become awkward to hold up to faces, he noted.



The annual Consumer Electronics Show gadget extravaganza that played out recently in Las Vegas was rife with headsets. Jawbone set out to distinguish itself with a tiny, high-quality ear piece crafted with style and brains to complement smartphone lifestyles.

Feril billed ERA as the smallest, lightest, best-sounding ear piece available.

ERA was priced at US$99 (RM300) at www.jawbone.com, but could be purchased with a protective charging case for US$130 (RM390) to increase talk time to 10 hours from four. The ear piece was less than half the size of its predecessor.

Since ERA is tiny, Jawbone added a "locator" feature that signals an ear piece to chirp to disclose where it is.A Jawbone "Nerd" USB device can be used to automatically synch the ear piece to laptop computers.

"It's the Internet-of-me," Feril said. "It is not about the things, it is about the person. You can see that, at least in Spike Jonze's interpretation, the Internet is going to be with you at all times."

Wednesday, February 4, 2015

How Many 2 way radios Can Run on one Channel?

Theoretically, you can use an unlimited amount of walkie-talkies on the same channel (although in practice you might experience a few problems if you took that suggestion literally). Basically, there isn'€™t really a set limit. You could use as many as you like provided they are set up correctly. Anybody set to the right channel and in range at the time of transmission would then be able to pick up the signal and respond to it.

Most radios have access to 8 channels. These channels each have 38 separate €˜identification tones€™. The user sets his/her channel up with the desired tone and then only other users who know the channel/tone will be able to hear the transmissions. As a result, there are, in any given area, about 304 different combinations, so signal interference is unlikely to affect you.

Please do not interpret this answer as saying that your radio has access to 304 possible channels. It does not. It will likely only have access to 8. Some less reputable manufacturers tend to falsely imply access to 304 channels; this is simply not the case. You will have access to 304 possible tone/channel combinations, that’s all.

To better explain the CTCSS codes and how they work; we'€™ll include a little information from Amherst.co.uk€™s FAQ page.

€œCTCSS stands for “Continuous Tone Coded Squelch System”. These codes are also often called “Privacy codes” If a CTCSS tone is selected; a CTCSS sub-audible tone is transmitted along with the regular voice audio by the transmitting radio. The receiving radio, set to the same CTCSS tone, will only receive audio if it contains that sub-tone. Interference from other users on the same frequency is therefore rejected (unless they are also on the same sub-tone). This is a way of allowing groups of users of walkie-talkies on the same channel to avoid hearing messages from other nearby users”.

So, in conclusion, you can probably use as many walkie-talkies as you like on the same channel. As long as the units in question are of the same type (either VHF or UHF) and have the same CTCSS setup, then you simply shouldn'€™t have a problem. You also shouldn'€™t suffer from signal interference due to other users (although you may still experience signal loss/interference/degradation from other sources). We have talked about combating signal loss elsewhere, so please see the other questions if you have any problems in this area.

SOURCES

http://www.amherst.co.uk/walkietalkie/walkie-talkie-radio-faq-basics.htm

http://www.homephonesonline.co.uk/information/qa-walkie-talkies.htm