[TenTec] Alpha 89

[Paul Christensen]

>I was able to measure a difference or period of time between the external
> keying line going low and the RF output of the transceiver.

>From external key closure to RF, my Omni VII measures 12 ms.  From amp key 
line out to RF measures 8 ms.  That's enough time for most any QSK amp.  My 
QSK time and Ext. T/R line are always set at 0 for both parameters.

> As to RF sensed amps, I suppose they work quite well on SSB.  However, for
> CW the delay seems would be reason or cause for concern.

Since they sense hot-switching and can compensate for such, they are a 
delight to use on both CW and SSB.

Paul, W9AC