Allison,
This is a plot with a 680nH inductor in series with one side of the coil and relay armature. Note the self resonance is now off to the right beyond the 100Mhz scan width and that the plot is about 12dB worse than the one using a 100uH inductor.? My Mouser inductor order should be here today.
As I said before I have no idea what happens if you add these inductors to ALL the relay coils (2 per) on a LPF board, but I have the boards ready to test with the appropriate inductor pads.
The idea is to reduce the coupling between the RF on the active relay armature and the relay coil and to other relay coils and their armatures.?
73 Kees K5BCQ
?
sf
