[Elecraft] Keying Waveform Measurement

[Stephen W. Kercel]

I was wondering if anyone on the reflector has tried to observe a 
transmitted keying waveform using the technique described on page 25.50 of 
the 2005 ARRL Handbook, and depicted in Figures 25.86 and 25.87.

The Handbook makes no mention of what the "Keying Test Generator" is or how 
to correctly set it up. I'd be most grateful if someone could explain what 
a "Keying Test Generator" really is.

73,

Steve Kercel
AA4AK