Take a look at http://www.w0qe.com/amplifier_timing.html where I
measured several radios. Not a huge sample but may be of interest to
you. You need to look at both relay closure and release since some
radios such as the IC-706mkIIG and IC-7000 have negative overlap on the
release if you operate full QSK which is NOT good.
Larry, W0QE
Rob Stampfli wrote:
> I know most rigs employ a delay of some milliseconds between the time
> when their amp relay closes and RF transmission begins in order to prevent
> hot keying problems. On some, this is even an adjustable parameter, but
> on most it is fixed.
>
> Has anyone compiled a list of delay values for the various commercial
> transceivers that have been sold over the years? It would seem that
> such a list would be quite useful to hams trying to retrofit a new amp
> into their shack. In addition to the delay figure, one could also add
> the voltage/amperage limits of the keying circuit, too.
>
> Inquiring minds...
>
> Rob / KD8WK
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