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http://www.psicompany.com/speaker-microphone/

If you use Portable two way radios, you should consider using a speaker microphone or a “speaker-mic” with your portable radio. As the name implies, the Speaker Mic is both a remote speaker and a remote microphone.

Simply put, a Speaker Mic will make portable radios survive longer, and they will often add more clarity in both the audio output coming out of your radio and the audio input you put into your radio. That means you are going to hear and be heard more often than if you didn’t use the Speaker Mic. And that, may make the critical difference between your radio system being able to deliver a communication path for you.

Like many radio owners, you may have a lot of money invested in your radio system. The speaker microphone is generally a very reasonably priced addition, and it can pay for itself in portable radio repair costs relating to portable radio handling accidents. With a Speaker Mic, the portable radio can remain securely fastened to the users belt loop, in the protective carrying case, where it is much less likely to be damaged. The Speaker Mic head can be clipped to the shirt or uniform in a close proximity to the mouth and ears, and it will be much easier to hear in this location. Transmitting simply requires turning your head, depressing the “push-to-talk” switch in the speaker and speaking in a clear and audible voice. It’s that simple.

Let’s take a closer look, and see what makes a Speaker Mic work better in portable radio usage than trying to use portable radios without a Speaker Mic. What just jumps off the page as a major difference, is the size of the speaker in the speaker mic itself. Most modern portable radios are very compact, and the audio capacity of the speaker is usually limited by the size of the speaker they have fit into that very tight, compact radio. The speaker mic typically has a larger speaker, and its proximity to your ear assists the audio process. Also, it has closer proximity than the ambient noise of your surroundings and this gives the Speaker Mic audio the added benefit of seeming more discernable.

Get More Information from PSICOMPANY.COM
http://www.psicompany.com/

Narrated By: Tyler Hart

Duration : 0:2:11

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Homemade Dual Band satellite Potable antenna with Splite boom, splite elments; completed on 6th July 2008 ,still under testing; all elements are checked.
micro-duplexer completed on 9th July 2008.

The base of HT holder is made from a one inch thick PVC transparent plastic.
BNC aluminium plate will be replaced by plastic to miniumize the interfence of electromagnetic wave.

two special features have added to quicken the assembly of the satellite antenna on 15 July 2008.

inspired by K7AGE, XE1MEX, N1ASA KI0AG and G1HSM

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Gotta love that slide-rule dial in the middle.

Runs on a 467 B battery and a D cell.

Duration : 0:1:53

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See the Motorola CP200 XLS and get information on Motorola CP200 XLS and other Motorola Radio:
http://www.psicompany.com/motorola-cp200xls-portable-radio/
Our Motorola Radio reviews:
http://www.psicompany.com/motorola/

The Motorola CP200 XLS portable two-way radio offers increased communication flexibility with features such as push-to-talk ID and selective call. Powerful audio output penetrates noisy environments, providing clear, crisp audio at any volume. A lightweight, ergonomic design makes this radio comfortable to carry and operate.

To provide the range thats best for your business, the Motorola CP200 XLS radio is available in both 4W UHF and 5W VHF models. A range of battery choices and rapid recharging capabilities help ensure radio readiness.

Motorola CP200 XLS is now available with LTR trunking capability built in.

Narrated By: Shawn Fuller – PSICOMPANY.COM
http://www.psicompany.com

Duration : 0:2:28

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Cabinet is made of bakelite and uses three D cells for the filaments, one Burgess Z30 45-volt B battery for the high voltage.

This video shows the insides of the portable–reproduction A, B batteries and chassis shots.

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It was a four tube battery superhet designed to fit into a standard lunchbox of the time.

I found the exact vintage lunchbox and built it up using parts from a couple of Emerson and Silvertone portable radios.

Uses a 467 B battery and a couple of C cells for the A battery.

At first, it squealed and like crazy, so I put it away for a few years.

A couple of days ago, I decided to give it another look. I did a better job aligning it, and to my surprise, the thing works!

Could use some improvement, as it’s still borderline squeggy, but it works and I’m gonna let sleeping dogs lie.

Duration : 0:6:52

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