Topband: TX relays

[Tom W8JI]

> One solution to the receiving problem when using high current relays may 
> be to have dc current (eg 100mA) pass through the contact in RX. This 
> would be particularly easy to implement when the antennas are zero ohms at 
> DC because the dc current source can then be placed in the shack (with a 
> suitable choke to isolate the RF from the supply and capacitor to isolate 
> the DC from the rig).

That's a good suggestion, and I looked at it for amplifiers, but it is 
impractical in some cases because of the "pop" it makes when the contacts 
switch. I can live with it for casual operating, but the AGC pump up kills a 
short signal while the AGC recovers.