[Elecraft] beat freq method

[ac5p at sbcglobal.net]

What you are doing (in CW mode) is matching the sidetone of the carrier to that 
of the K3 internal side tone.   You cant hear the beat tone when they are close 
together, BUT, when they are VERY close the tone VOLUME  will go up and 
down.  Going either side of zero beat the volume will rise and fall faster.  You 
want to tune very slowly and get the RISE/FALL of volume level to a null in the 
middle.    Other freqs you can check your calibration is CHU at 7850.000 or 
14670.000 or at night 3330.000kHz.   Use CWT and SPOT while tuning the reference 
signal in the CW Mode.  With the freq. set to FINE, it will display the to 
nearest Hertz and you can see how close you got the reference oscillator.   AM 
signals will sound good when the tuned frequency (USB)  matches the carrier 
frequency.  


73,  Mike  AC5P



________________________________
From: jrstorms <jrstorms at hotmail.com>
To: elecraft at mailman.qth.net
Sent: Mon, March 28, 2011 12:31:40 PM
Subject: [Elecraft] beat freq method

Trying to set the freq cal for the reference using method 2 since I do not
have a freq counter.  I may be tone deaf or something but I am not sure what
the beat-freq sounds like.  Wish someone would post or send a sound file
demonstrating the beat freq when off, close and good sounds like.  I tried
setting it on 15mhz and thought I was close but when listening to WWV on
10mhz had to go down 300 hz to understand the voice transmission.  Also
15mhz voice was "fuzzy" until I tuned off freq about 100hz.  Guess I am
confused at this point.  I do understand that this really just adjusts vfo's
so when at band edges I do not go out of band.  However when using DX spots
with N3FJP auto tune clicks I am off freq.  Have to dial around to get clear
signal so if I don't then they do not hear my calls well.  Am sending this
message to K3 support a well but appreciate any responses from the
community.

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