[Elecraft] Dual Ptt

[Don Wilhelm]

Ralph,

If you must switch between the two rigs, you will need to connect the K3 
for basic mode - only the KEYOUT line and not AUX cables.

Although you might derive a diode "OR" circuit, I assume you will also 
need to switch the RF path - so I suggest that a hard contact switch or 
relay will be more trouble free and more free of operator errors caused 
by keying the amp and ATU from the wrong transceiver.

You may also want to switch the microphone/PTT and/or paddles from one 
transceiver to another.  Easily done with a switch or relay.  I strongly 
believe in the KISS principle.

73,
Don W3FPR

On 11/3/2018 2:21 PM, Ralph S. Turk wrote:
> Hi all
> 
> I need to be able to key the KPA500 & KAT500 from both a Yaesu 1000mp and my K3.
> 
> I assume (I know don't assume) I can use diodes to isolate both radios.
> 
> Any thoughts?
> 
> Ralph, W7HSG/AFA9RT
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