High-band QMX rev2 (2024), 9V version, Firmware 017.? Powering with a bench supply, limited to 1A at 9V.? Today I made a few FT8 contacts on 20m, with 2.8W power out. That's a good start. I'm very happy to have a working radio, impressed with everything that's been packed into it.
As part of my testing, I've run the BPF and LPF sweeps on 20m, 17m, 15m, 12m, and 10m.? The LPF responses agree reasonably with the the figures in the operating manual. For the BPFs, the 10m, 15m, and 20m filters are pretty good, but 17m and 12m deviate substantially from what's shown in the operating manual.? I'll look at L401 and C401-C404 again, and assuming that I have the capacitors in the correct locations and no soldering problems, is the next step to adjust the spacings of the turns of the coil??
Thanks,
Eric
