Steve made an interesting comment about testing rigs with artificial signals.
I believe Johan Forrer KC7WW has been developing those kind of "HF Channel
Simulators" for about a decade (first met him in 1992) and he uses them to
test various HF telecom products. I believe channel simulators were used to
test G-TOR, PACTOR, PACTOR-II and now PACTOR-III against other modulation
schemes. I wonder if they would be useful in ARRL style testing?
Check out his website at http://www.peak.org/~forrerj/
Incidently, Johan is the guy who wrote the DSP processing software for the
SGC-2020 + DSP. He is quite an accomplished programmer and engineer.
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