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 <[email protected]> To: [email protected] 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. -- View this message in context: http://elecraft.365791.n2.nabble.com/beat-freq-method-tp6215961p6215961.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
