[Elecraft] beat freq method
Ingo Meyer, DK3RED
dk3red at qrp4fun.de
Mon Mar 28 13:50:02 EDT 2011
Hello jrstorms,
> 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. ...
You could not hear a beat frequency. Noboby can hear it. But you can locate it. Turn your
VFO/BFO slowly around the target frequency (up and down). If you VFO/BFO frequency was
higher than the target frequency you can hear the tone/frequency goes lower and lower. At
one point you can't hear it. If you turn the VFO/BFO in the same direction, so you can
hear the tone/frequency again, but the frequency goes now higher. The area, at which you
can't hear the tone, that is the beat frequency.
--
73/72 de Ingo, DK3RED - Don't forget: the fun is the power!
www.qrp4fun.de - dk3red at qrp4fun.de
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