Still on a steep learning curve with this remarkable radio I got at FDIM in Dayton and had my first SSB QSO with a good audio report using the built in mic and awkward touch screen TX/RX buttons. I think I'll wire up a hand speaker mic. However, I note a LONG delay (around 2-3 seconds) when going from TX to RX either using the buttons or just returning to RX after sending CW. I haven't tried FT8 except to observe it receives OK. The delay is from a slow AGC recovery as it is absent with AGC off and it looks like like perhaps a "pop" that is filtered in the Audio. I've seen that in uBitX radios after version 3 where the audio delay in the last stage is just enough to hide the "pop", but if AGC is tapped ahead of that it gets affected. My solution in my uBitX was to limit the max the AGC could clamp down. Is there something similar that could be done in software?
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I did measure CW power out running on 7.6v batteries, drive 100, into a dummy load with less than 1.2:1 SWR.
80m?? 8.0w
40m ? 6.5w
30m?? 3.8w
20m?? 7.0w
17m?? 6.0w
15m?? 3.0w
12m?? 3.5w
10m?? 3.0w
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These seem similar to the Vpp shown on the test card, but a bit more pronounced. Not sure why 20 and 17 are so good.
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=Vic=
Vic WA4THR