Pete,
To my mind, the PTT and KEY OUT nomenclature used by Elecraft is
entirely correct and completely descriptive of what each does. Yes, I
know that some other rigs use PTT and KEYOUT interchangably, Icom
confuses my mind more by labeling the KEYOUT with SEND.
PTT is what you do to put the transceiver into transmit - Push To Talk.
That may be like activating the PTT button on the microphone (I shudder
when a ham talks about "keying the mic" - to me that is CB talk) or it
can be from an external device such as a footswitch.
KEY OUT is just what it says: It is an output signal that is to be used
to key other devices (such as an amplifier) when the transceiver is in
transmit.
73,
Don W3FPR
On 11/7/2019 3:14 PM, N4ZR wrote:
Well I'll be darned. I just pulled that cable out of the K3 and it is
indeed redundant. I must have missed that in the manual. Thanks, Bob.
While I'm on the subject, I wish that Elecraft would clean up their
terminology - their use of "Key" to denote PTT is confusing. See the
back panel of the K3, for example, which has PTT IN and KEY OUT jacks in
the same row. I believe this usage originated with CB.
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