[Hammarlund] HQ-129x

Bill Cromwell wrcromwell at gmail.com
Wed Feb 9 14:43:28 EST 2011


Bill W2NVD said:

I want to thank everyone for your responses on and off list. A lot of
good food for thought. One thing I'd like to pass along, I've seen a few
different methods for measuring signal strength when aligning. I found
that pin 8 of the 6H6 has a  -DC voltage on it that corresponds to
signal similar to the method employed when tuning an R390a at the diode
load. Besides tuning for a peak, if you don't have a sweep setup I guess
you could plot out the levels to get an idea of symmetry.

Thanks again!

Bill W2NVD

Hi Bill,

I did the graph paper and measurement thing with an HQ-145X once upon a
time. It took most of my free time for two weeks to get happy results.
That is what prompted me to build and use a series of 'wobbulators' and
other sweepers.

73,

Bill  KU8H



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