[Elecraft] Determining zero-beat
Pete Smith
n4zr at contesting.com
Fri Dec 3 06:09:29 EST 2010
I want to use my K3 to calibrate the QS1R receiver used here as part of
the Reverse Beacon Network. For technical reasons, it's desirable to
calibrate the QS1R at as high a frequency as possible, so I wanted to do
so in the 6-meter band. I thought that if I knew how accurate the K3's
frequency display was at 10 MHz WWV, I'd know whether I needed to
compensate for any systematic error when comparing the two up on 6M.
Here's where the problem comes in. AM mode isn't usable for finding
zero-beat, of course. On CW, it appears that the zero-beat frequency is
displayed as 10 MHz minus the "pitch" frequency (which can only be
adjusted down to 300 Hz). I'd like to know the frequency accuracy of
the K3 within 20-30 Hz if possible for this exercise.
How to proceed?
--
73, Pete N4ZR
The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com,
spots at telnet.reversebeacon.net, port 7000
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