[Amps] Good amp to buy (or something like that)

[Gary Schafer]

> -----Original Message-----
> From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com]
> On Behalf Of Bill, W6WRT
> Sent: Sunday, January 31, 2010 8:53 PM
> To: amps at contesting.com
> Subject: Re: [Amps] Good amp to buy (or something like that)
> 
> ORIGINAL MESSAGE:
> 
> On Sun, 31 Jan 2010 15:57:43 -0500, "Gary Schafer"
> <garyschafer at comcast.net> wrote:
> 
> >All you need to do is feed a square wave audio into an SSB transmitter
> and
> >look at the RF output waveform. You will not see a square wave but will
> see
> >sharp spikes that represent the rise and fall of the square wave
> corners.
> 
> REPLY:
> 
> Your statement is correct only for low frequency square waves, ones
> below the bandpass of the transmitter's audio circuit. With a suitable
> high frequency square wave, you will indeed see a square wave at the
> RF output. Same as with audio amplifiers.
> 
> 73, Bill W6WRT

I take it that you have never tried it! A square wave will not pass thru an
SSB transmitter as a square wave.

It is not the audio band pass that causes the problem. It is the phase shift
involved in the SSB generation process that is the problem.

73
Gary  K4FMX