[Elecraft] K2 SSB Low Power on some bands

n0jrn n0jrn at mchsi.com
Sat Mar 1 19:53:12 EST 2008


Well,     this is a strange deal and I'm not seeing anything in the archives 
relative to this particular situation.

Just installed the KSB2  in K2 #  6272...................

Finished the alignment and filter settings....

Figured I would play with it for awhile and see how it does.          WRONG 
:-)

Low power on all bands except 40 mtrs.  ( on SSB )  No / or very weak ALC / 
RF  response  regardless of    SSBA   and   SSBC  settings.

It's fine on 40 mtrs with good drive and output.

This is still a QRP   K2  with KAT2,  KNB2 and now KSB2 installed.....

All tests and alignments were spot on and the rig works like a dream on CW 
on all bands.        All functions are working as they should etc.

I switch mic's and no change.       ( before I realized it was fine on 40 ) 
I have an external watt meter in line with the antenna and it shows  40 
meters around 10 watts while all other bands are down around 1 or 2 watts
( including 80 )
Rig shows good ALC and RF on the bar graff on 40 but very weak on all other 
bands.

I wondered if the tuner was giving some problems so changed modes to CW and 
it has lots of power on all bands.    ( check each band comparing CW to SSB 
and no power on SSB while CW if fine )

I'm guessing it's something I overlooked but it's been a long day. I'll dig 
into this tomorrow.     Any ideas of what I missed would certainly be 
appreciated.

Thanks and 72:         Jerry         N0JRN 



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