[Elecraft] K2 with KXPA100

[Don Wilhelm]

Jay,

You will need to key the amplifier with a keying output from the K2. 
Yes, the amp will detect band and frequency, but you still need a KEYOUT 
from the K2.
The best solution is to use the N0SS Amplifier Keying board.  Since Tom 
is SK, no kits are available, but I understand you can obtain the boards 
from FAR circuits - or the circuit is simple enough that you can build 
it on perfboard using Tom's full size board layout.  See 
http://www.mmccs.com/mmarc/n0ss/k2_t-r_rly_drvr.pdf.

Thank you for your help at RARSfest - the Amazon package arrived today - 
Thanks.

73,
Don W3FPR

On 4/21/2019 8:23 PM, Jay Rutherford wrote:
> Greetings all,
> 
> How could I use the KXPA100 amp with my K2? I don't think the K2 has a keying line, and so I wonder if the KXPA100 would automatically detect band and frequency through the built-in tuner without a keying line cable. Any info appreciated.
> 
> 73 Jay K3BH