[Elecraft] K3S QST Article

Edward R Cole kl7uw at acsalaska.net
Sat Oct 15 00:17:31 EDT 2016


OK.  I purchased the K3/10 in 2010 which is able to output up to 12w.

Is the low power amp any better at IMD, or subject to the same 
limitations because its 12v transistors?
I bought the KXPA-100 last year.  Would it be any better than the 
KPA3 or KPA3A?  3rd-order IMD in the vicinity of -30 dBc is about 
what I have read for specs my many 12v power devices.

I bought the new synth because I understood it would improve Rx 
performance (haven't installed them yet main & sub Rx).  Also for K3 
use at 630m.

Would running the K3/10 at 5w driving a linear amp be lower in 
IMD?  The amp uses 50v devices and made for TV which has greater 
linearity specs than SSB. I am also running it at about 60% full output on 6m.

73, Ed - KL7UW
http://www.kl7uw.com
     "Kits made by KL7UW"
Dubus Mag business:
     dubususa at gmail.com



More information about the Elecraft mailing list