[Elecraft] K3 to ALS600 Amplifier

[Phil & Debbie Salas]

Jack - I've been using my K3 with my ALS-600 for about 18 months now.  My 
ALS-600 takes 65 watts drive to get full output, so I just put a 2dB 
attenuator in-line whenever the amp is turned on (relays switch in the 
attenuator automatically).  That way I can leave my transmit power always 
set to 100 watts and not worry about the drive level.  Info on my 
auto-switch attenuator is in the "Articles" section of my website at 
www.ad5x.com.

I modified my ALS-600 for QSK operation.  The QSK relays operate in less 
than 5ms, which is within the 8ms default delay of the K3.  So this all 
works fine as well.  Details on the ALS-600 QSK mod (which is very simple) 
are in the "Equipment Modification" section of my website.

Phil - AD5X

"I am hooking up my new K3 to a ALS600 and would appreciate comments from
anyone with this combo concerning connecting without ALC control and any
relay delay settings in the K3

Jack W4GRJ"