Warren,
Not for harmonics.? The spur issue took precedence.
They were shared in other message threads here.
The spur issue was discovered during power amp improvements.
IT was announced here in the forum and also on the ubitx.net site.
IT was why I suggests keying the modulator as then CW cleans up
leaving only the above 20mhz spurs.??
Basically for any band above 20mhz there are spurs below the cutoff of the 10M filter.
Specific example is at 28mhz the spur is 17mhz (+- offsets).? At 21mhz the spurs
are 24mhz (they move up as you move down).? At 14mhz the 20M filter catches any
spurs but not the 30mhz filter.
That is why I said band pass filter before the transmitter would clean up a lot of issues.
Those being harmonics, spurs and some of the oddball mix products visible.
From my point of view my radio is not going to see an antenna other than as RX.
I am looking at how i can make it suitable for use as transceiver.?
Its up to others on this to evaluate the data made available and use or not use.
Allison
