Posted by
Ron ZL1TW on
Apr 10, 2005; 11:25am
URL: http://elecraft.85.s1.nabble.com/Musings-on-Zeroing-in-on-WWV-tp376867.html
Greetings.
Several times on this Reflector we see posts telling people
to "tune into WWV exactly". Well....if any readers on the Reflector have
shot hearing like mine that could present a difficulty.
Here is what I do, and I imagine it is close enough for me without
instruments. I will no doubt be corrected if I have it wrong.
I tune into WWV in CW mode and use the SPOT tone to zero beat with the WWV
tone. Then, if I switch to LSB or USB the announcer should sound the same on
either sideband (ie the pitch of the announcement shouldn't change.)
I guess having USB and LSB sounding the same will also depend on how
accurately the BFO has been set for each sideband.
Just checked my K2 with this method after it has been running the last 5
hours and it shows I am 80hz off frequency... close enough that I won't be
trying to get it any better.
I wonder how close we used to be with the Analog dials we used to use? ( You
*did* use a radio with Analog tuning didn't you?) Turning the clock back
even a bit further, to the days of the homebrew SSB rigs. Remember the band
marker xtal you used,to make sure you stayed in band? How times have changed
when we can build a kitset rig that can stay withing a few hz resolution.
Cheers......Ron ZL1TW
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