[Elecraft] K2, Hi-cur reading
Hans Elfelt Bonnesen
hans.elfelt at me.com
Thu Mar 14 17:09:10 EDT 2013
Thanks for snappy reply to KAT2 troubles.
Started on your presumption that connection to dummy load was unstable or non exsisting. It wasn't.
Was about to take ATU apart for a rewinding of T1 but --
quickly decided to check the K2 in its original condition.
Disconnected J7 and J8 + removed ATU from lid.
Switching to original antenna plug and thus went back to
K2's former condition with one exception : The new P6 plug was now sitting in its place, as it is hard to
remove.
Connected K2 to adjusted antenna and (ALAS !!) had the dreaded Hi-cur info on display.
Resistance from collectors of Q7/Q8 to ground are both around 320 ohms . Thermal pads neatly intact. Shoulder washers in place.
+++
Beginning to feel that the initiating ATU problems during CALn procedure was in fact a malfunction in the K2 itself.
Where to look ? Any suggestions ?
73 de
Hans , OZ5RB
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