Re: sBITX transmit problem - low analog drive signal? #sBitx
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Bob, Some parts if the manual are outdated. But there being no output is weird. Do you have an oscilloscope or an RF probe in the shack? - f On Tue, Aug 9, 2022, 6:52 PM Bob Benedict, KD8CGH <rkayakr@...> wrote: Trying again with this lack of RF out in CW and digital and appears to need overdriven in SSB to get RF output. (/g/BITX20/message/94533). I wonder if the drive signal is being reduced or not properly amplified? There appears to be ten divisions on drive spectrum scope scale. The operating manual suggests mic gain be adjusted to span 6 in SSB. As you can see from the attached images for SSB with audio at about 6 divisions there is no output. When driven hard there is output. The generated CW signal, like the moderate SSB signal produces no output. |
