I built the K2 with internal battery and all accessories for a compact stand alone QRP rig and the KPA100/ KAT100 in a separate EC2 enclosure for QRO base operation.
Enjoyed assembling the kits, lots of toroid winding and soldering. I find that I use the K2 QRP the most when spending time outdoors. CW and SSB Have other rigs for the base operation including a Icom 701, Icom 706, mil spec Sunair GSB-900 with auto antenna tuner (good for SSB) so have not used the KPA100/KAT100 that often Am not into contesting so do not see a need for an upgrade at this time. With all of the recent talk about the importance of Roofing filters, a very good crystal filter right after the mixer is inherent in the K2 design. 73, Bob Johansen WB2SRF K2 S/N 5622 _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com