[Elecraft] K2-no transmit on SSB ?

Gary Marks gmarks at neo.rr.com
Sun Aug 13 19:44:32 EDT 2006




I just finished the alignment using Spectrgram and all seems to be OK. The 
rig will transmit on CW OK. I am getting no output on upper or lower 
sideband. I'm using another receiver to listen to the K2's signal. I can 
hear a tone when transmitting but no voice audio. Neither can I hear myself 
in the headphones (Heil Pro-Set K2) with the 5.6K resistor between pins 1 
and 6 and all 8 jumper's installed.

I run some voltage checks using the KSB2 manual and most were close to the 
manuals reading except the following:

U1 Pin 16 should be 5.4 on TX and it is 3.08
U1 Pin  17 should be 5.6 on TX and it is 4.15
U1 Pin  28 should be 2.4 on TX and it is 5.44

U2 Pin  1 should be 5.6 on TX and it is 4.15

U3 Pin  5 should be 0.4 on both RX and TX and it is .26 on both

D11 on SSB should be 0 and it is .14

Any suggestions. I've probably been at this too long and am missing 
something simple.

THANKS
Gary
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