[Elecraft] Default K3 transmit delay may be too short for slow QRO amplifiers

Bill W4ZV btippett at alum.mit.edu
Sun Jun 10 17:59:41 EDT 2018


Dimitry Borzenko wrote
> Why in the 20 century we need to use foot switch?

Because I switch other things besides my amp.  For example:

Beverages disconnected from RX input during TX.
Parasitic TX array elements (active during RX, to ground during RX).
Detuning stub on TX antenna (during RX).

Most of these relays are slow (and cheap) open frame relays.

With a little practice, I can listen between words (not characters) using a
footswitch.

And I have NEVER burned up any TX relays in my amps.

73,  Bill  W4ZV




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