Gray Electronics Three Hundred Bi Linear into needed

[nomadradio]

If you can hook it up and listen to how it sounds on sideband before you buy it, you'll find out what they mean.

To get decent SSB audio, an amplifier must have some bias current passing through the RF power transistors before any drive power is applied from the radio. This turns on the RF transistors so all of your sideband audio gets amplified, both the weak and the stronger parts of the voice waveform.

AM-only amplifiers use the radio's carrier to turn on the transistors. A sideband signal has no carrier, so your voice audio will be switching the transistors on and off in step with your voice waveform.

Tends to make the radio sound garbled with the amplifier running.

Try to get a listen to the amplifier on the air running sideband. If you like what you hear, buy it.

And if it sounds like a manure salesman with a mouth full of samples, that would be more likely.

No substitute for finding out this kind of thing first-hand.

73

 

[Staybolt]

Ive ran a few class c amps on ssb that sounded ok. The guys that bitch are the same ones that will tell you are off freaq even if its just a tiny bit . Hence why im not much of a fan of ssb...

 

[OldTech03]

Sometimes when AM'ers use Class C amps on SSB they may get OK results because the mike sensitivity is set so high there is enough Bias being maintained to keep the transistors at least at thresholding bias settings just from mike noise driving up some background noise it still isn't as clean as it could be but acceptable.