Many thanks for the SoftRock kit. I have one from Round 3, and it has been
working perfectly from the day I assembled it. Your comments on the crystal
frequencies are appreciated. I will report my progress with the 8830KHz mod
in this group, but this may take a while since I am still having fun with
the unmodified version of the receiver.
73 Alex VE3NEA
> Hi Alex,
> Your 35.304 MHz crystal sounds just right to me. It will probably
> at around 35.4 MHz in the SoftRock40 oscillator circuit. This would
> down to 8.85 MHz and the SoftRock would then cover from 8.826 to 8.874
> This would give you IF passband tuning at your IF frequency -4 kHz to +44
> kHz, more than required I would think.
> The 35.208 MHz crystal would be a little low in frequency for this
> One ham has reported great results using the SoftRock40 with his vintage
> Colins RX with a 455 kHz IF. Please let us all know how it works for you.
> Tony KB9YIG