John,
In the absence of any other information, I would say that there is some
delay between KeyOut going active and the onset of RF. I do not know
the numbers, but in the K3 it is adjustable, and in the K2 it was
between 12 and 15 ms. I expect the KX3 to be in that 12 to 15 ms range too.
Validation of my guesses will have to come from more authoritative
sources, but I can safely say there will be some delay in the onset of
RF - I just don't know the numbers, but I believe your 4 to 8 ms will be
within the "safe" region.
73,
Don W3FPR
On 11/27/2012 2:36 PM, WL7M wrote:
> I have a Ten Tec Hercules II amp I'm not using and I was thinking about
> trying it with my KX3.
>
> I know the KX3 has a KEY OUT available on the ACC2 jack (I did purchase the
> ACC2 Module). From what I've read, Ten Tec amps will work with a non-Ten
> Tec transceiver without the full keying loop if there is a short delay (4-8
> msec?) between the transceiver's KEY OUT closure and the application of RF.
>
> My question: Is there any delay built into the KX3 between KEY OUT closure
> and transmitting RF?
>
> I've read about the 8 msec+ adjustable TX Delay for the K3 but couldn't find
> any references to TX Delay and the KX3. I know there's a CW Delay setting in
> the KX3 menu, but that controls the time it takes the KX3 to switch back to
> receive after key-up.
>
> I'm not hoping for full QSK, but slow QSK/semi-break in would be nice.
>
> Thanks,
> John Pfeifer
> WL7M
>
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