Thread: VoiceMax...
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Old December 28th 07, 09:31 PM posted to rec.radio.cb
Telstar Electronics Telstar Electronics is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 985
Default VoiceMax...

On Dec 28, 8:02*am, Jay in the Mojave wrote:
I am sure Brian's ways are a little different, but still you guys have
never shown any documented measured proof that Voice Max will over
modulate or splatter. I believe most any radio can be adjusted to over
modulate and then splatter.
Where's the beef? You need to show us a measured RF Envelope showing
before and after, while following assembly and installation instructions.
I have adjusted AM and SSB radios to have not so linear RF Envelope and
sound great. Using processors and such. While watching a o-scope and
listening to the transmitted signal from a significantly attenuated
input signal I was able to get quit a feel for the processed signal. I
used a Diawa 440 speech processor.
This thing worked great as I could mix the attenuated transmitted signal
in with skip signals and seeing if the processor gave any signal punch,
it did.


Jay, absolutely right... you can adjust any audio device on a radio
improperly... and over-modulate. The VoiceMax module is no different.
It's only as good as the person that installs and adjusts it. However,
when properly adjusted... VoiceMax will maintain your RF envelope at
the 100% AM modulation point, regardless of different voice pitches or
volume levels. Additional technical skills are required for proper
radio adjustments for FM and SSB modes. There are currently about 80
VoiceMax modules in operation (66 in US, 5 in Italy, 2 in Spain, 3 in
UK, 3 in Autrailia, 1 in Holland) at this time without a single
reported problem or complaint. Glad to see there is at least one
person out there on this NG that understands the benefits of a good
processor for two-way radio. It makes all the difference in the world.
Have a good new year...
www.telstar-electronics.com