[Elecraft] VCO voltages for 160m band??

Ron W ron_w at clear.net.nz
Tue Sep 14 05:06:36 EDT 2004


One for the experts........today I re-checked my VCO voltage readings for 
each band ( they were fine), but I realized that the table lists all bands 
except the 160m band.
Unless I am wrong, there is nothing in the 160m module instructions to tell 
you what VCO voltage to expect, so I tried a few readings there and was 
quite surprised at how little voltage I actually had.
At 1800KHz I read only 0.61v   and that rises to about 1.0v by about 
1900KHz....still somewhat less than the 1.5v minimum suggested.
I can forget about the statement in the manual where it says" Receive-only 
operation down to about 1.4MHZ is possible"......as my VCO drops to 0.0v at 
1600KHz.
How does this compare with *your* K2 VCO readings?? My K2 is a pre-3000 set 
with all the mods and up-grades to bring it up to latest series specs. It 
is quite conceivable it is not "up to specs" on 160m :-(  but it appears to 
work fine there even with low VCO voltages!
Cheers......Ron ZL1TW



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