What I'm seeing yet another wish for a single pill fix...
Using better relays even omron G6 series helps... to a point.? That point occurs when the board
layout under the relays (the real cause of issues) takes over.? For all that haven't looked there is
a wiki with pictures.
I've made those filters work with the existing relays and a simple re-wire.
Board layout is a extremely significant contributor to many of the issues.
Fire up your web browse and look here:
/g/BITX20/wiki/uBITX-spur-and-harmonics
Allison