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Re: QCX-mini 20 meters RX spurs on 14.008 14.026 and 14.035 (and a way to quench them).

 

Don, my 20 meter?Mini is a Rev 1 but I have a Rev 3 that?I built for 15 meters. It has the AGC and does not have the TCXO. I set it on 20 meters and do not hear any spurious signals in the receiver.... Ron


On Tue, Dec 6, 2022 at 11:39 PM Donald Kirk via <wd8dsb=[email protected]> wrote:
I also don't know if the 20 meter receiver spurs are unique to units with the AGC option installed as the AGC board sits right next to the micro-controller, and I should note that all 3 of my QCX-minis have the Rev 3 PCB.? The 20 meter spurs are present with and without the AGC enabled.

It would be interesting to hear if someone has a Rev 3 PCB version of the QCX-mini without the AGC board installed and whether they hear the 20 meter spurs or not.? It would also be interesting to see if someone has the Rev 3 PCB version of the QCX-mini without the TCXO board installed and whether they hear the 20 meter spurs or not.??

Don (wd8dsb)

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