[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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