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Old June 11th 08, 09:36 PM posted to rec.radio.cb,rec.radio.amateur.equipment,rec.radio.amateur.homebrew
Telstar Electronics Telstar Electronics is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 985
Default VoiceMax Speech Processor...

On Jun 11, 8:44*am, james wrote:
On Mon, 9 Jun 2008 06:25:33 -0700 (PDT), Telstar Electronics

wrote:

|On Jun 6, 4:17*pm, james wrote:
| On Thu, 5 Jun 2008 16:25:44 -0400, "Tio Pedro"
|| wrote:

|
| ||"Telstar Electronics" wrote in message
|
| ....
| | VoiceMax is really gaining momentum!
| | Radio operators all over the world are enjoying the Voicemax
| | advantage.
| | Since VoiceMax doesn't use audio "clipping"... your audio is loud AND
| | clear.
| | What a concept!
| |
| | See what VoiceMax can do for you at
| |http://www.telstar-electronics.com/voicemax.htm
| |
| |What is the dB advantage of this vs. RF clipping for SSB?
| |
| |
| |----------------------
|
| RF Clipping is superior to audio compression in SSB transmission. RF
| clipping will provide about 6dB improvement over audio compression
| alone.
|
| james
|
|James is correct... that the RF clipping technique is somewhat more
|effective. What he fails to mention is that it's more complex... and
|not easily installed into an existing radio. RF clipping also
|exihibits substantially more distortion. The VoiceMax installs
|easily... and provides tangible results.
|----------------

Actually as easy to design an RF Clipper as an audio compressor. True
it is a bit more difficult to install. Audio clippers can be external
to the transmitter and simpler to install and operate. A RF Clipper
will install as easily as your internal audio compressor. *

Personally I would take RF clipping over Audio compression any day
with SSB transmissions. If the post filters are good in enough RF
clipping, there is not significant difference in distortion.

james


But I was under the impression that RF clippers only work on SSB?...
and the installation involves tearing into the IF section?