Re: Bitx multiband
The SSB would be inverted for the Local Oscillator (VFO + Pre-mixtoggle quoted messageShow quoted text
Oscillator)injection frequencies of 12.5 and 16 MHz, since they are
higher than the IF and the mixer must select the difference frequency
in both of those cases to get the IF frequency. 20 meters would not be
inverted since the VFO is used directly and the frequency is lower
than the IF. Since you will have two BFO/carrier oscillators
available, one for LSB and one for SSB, it will not be a problem.
The Local Oscillator outputs will need to each go through bandpass
filters (12.5 and 16 MHz, with the center frequency of each being the
center of the SSB range of the band), preferably triple-tuned, before
the signal is sent to the mixer.
--- In BITX20@..., "ea4dsy" <ea4dsy@y...> wrote: