Could take the QMX+, redesign T501 and the LPF"s for CMCD with the tank placed out beyond T501.
It's preferable to have the tank right across the BS170 drains so T501 only needs to deal with the fundamental,?
but that makes band switching much more problematic.
?
We have six LPF's in the QMX+.? Let's assume we shoot for a high enough Q that we need
to separate the CW and Phone parts of the 80m band.? So we might choose to peak those
six LPF slots (now resonant CMCD style output networks) for 80m, 75m, 40m, 20m 15m 10m.
That's all I could hope for in a $125 CW/Digital/SSB transceiver.
?
It might be possible to still hit the WARC bands at reduced power.
Or you blow a second $125 for a QMX+ tuned to a few different bands.
?
Jerry, KE7ER
?
On Sat, Feb 22, 2025 at 09:27 AM, Stan Dye wrote:
On Sat, Feb 22, 2025 at 09:12 AM, Mark Flavin wrote:
option for say 160-20 of 40-10m or 6m would be nice.? Then maybe ea. filter only has to cover 2 bands
?
You can do this yourself by disabling the unwanted bands in the band configuration screen, then modify the filters and filter selections to be specific to the bands you want.
