[K2] Question about tuning K2 for SSB..

Posted by VK7JB on Nov 04, 2010; 2:20am
URL: http://elecraft.85.s1.nabble.com/K2-Question-about-tuning-K2-for-SSB-tp5703977.html

Hi All,

I'm learning to drive my new K2/100 and have reached a conceptual block that will betray a fundamental lack of understanding, but here goes anyway...

My K2 dial frequency reads about 20hz under the actual frequency - receiving WWV on 10000.00, the LCD frequency readout reads 9999.98.  That's all good.  But,  when I'm working SSB and want to make contact with a station already transmitting on a particular frequency, how do I handle the tuning to ensure I'm transmitting on his frequency exactly.  Do I tune my K2 to achieve best resolved  audio receiving his signal, regardless of the actual frequency displayed on my LCD,  then assume when I hit TX I'll be transmitting exactly on his frequency?  Or is there any other way to account for this small 20hz shift, to make sure I'm transmitting exactly where he is tuned?

I'm running my K2 with the MH-2 mic and last night got reports of "muffled" audio.  I suspect I'll need to tweak the SSB filter passband position- the position looks good on Spectrogram with the low frequency roll off for the SSB Tx filter sitting around 300hz, but I understand it may need some "optimising" with  live audio monitoring.  I did wonder  if my tuning technique was contributing to the problem - perhaps I'm not transmitting exactly where they're listening.

I hope that makes sense.  Any advice always gratefully received,

73,
John
VK7JB