Mark
I am thinking that the impact of substituting 680 nH shielded inductors for the toroids on the 45 MHz can be checked by monitoring a 28 MHz beacon (if you are where you can hear one) or by measuring SSB transmit output on an upper band.? I have some shielded inductors to try, but not yet installed.? Yes I am reading Raj that these are a good thing to reduce leakage that may cause more than one malady, and maybe with Axicom relays in might mitigate these mixer spurious.?
I did not find any improvement using the LC filter that was recommended, without other fixes for mixer spurious.? I sense they may be a small impact, but of course part of the v5 fix.?
I did try a second 45 MHz crystal filter - and this wrecked my low band CW transmit output.? Perhaps installing the shielded inductors may allow the second xtal filter to work, a path I plan to try.?
Meanwhile my harmonic spurious are good, using Gordan's board.?
Curt
