[K2] K2/100 power out on 10m SSB...

Posted by VK7JB on Nov 06, 2010; 3:51am
URL: http://elecraft.85.s1.nabble.com/K2-K2-100-power-out-on-10m-SSB-tp5711308.html

Just noticed that power out on 10m (28490) CW and in TUNE mode is 85W, but maximum PEP on SSB is 30W.

All other bands, I get 100W out in CW/TUNE & SSB.  I'm checking this by running K2/100  into a 50 ohm dummy load.  Wattmeters are a WavenodeWN-2 and Autek WM1. Same  PO PEP recorded with both.

I've done the mod replacing K2 R98 with a 1k0 resistor to reduce the ALC dithering on 40m. This did reduce the power out on 10m in CW and TUNE from 100W to 85W, but I was happy with that compromise for the more stable ALC action.

Any explanation why is the output SSB is so much reduced compared with CW and TUNE modes?

73,

John
VK7JB