[Elecraft] K2/100 with Alpha 99

[Tom Hammond]

Roy:

At 07:12 PM 1/6/05, you wrote:
>Is it possible to key the K2/100 for CW QSK operation with the Alpha  99.  If
>so, how should the delay be set in the K2.  I would  rather key the K2 first
>rather than keying the Alpha 99 and running the keying  line back to the K2.
>Roy Morris  W4WFB
>
>However if you get a QSK amp, like some of the Alpha's  or TenTec's, you can
>retain the degree of QSK that the K2 or K2/100 is able to  provide.

Sure.

Just key the K2/100 and take the AMP T-R output from the back and connect 
it directly to the T-R input of the QSK amp.

I have an Alpha 76PA in which I installed retrofitted ETO QSK, and I've 
keyed it in this manner since day-one which no problems whatsoever.

It is best to NOT key the amp and allow it to key the K2/100. Although 
that's how ETO used to want you to do it with their Alpha 78, I never found 
it to work correctly. However, using the newer QSK rigs, which offer a few 
mS of pre-keying of the T-R line before RF is generated, keying the rig and 
allowing IT to key the amp works just great.

73,

Tom   N0SS