On Thu, 12 Jul 2007, Darwin, Keith wrote:
In the music field, we use guitar tuners. They tell you if you're sharp
of flat. I've often though of using a guitar tuner to tune CW. 622 Hz
is an Eb, 659 Hz is an E.
Those critters are really usefull...borrowed one last weekend to take to a
work
Tone matching judgment - depending on what you're referring to, nobody
has it.
Most people can identify which of two tones is higher or lower if they
have enough pitch separation. As they get closer in pitch, people's
ability to tell high or low (sharp or flat) goes away. At that point
you have
I find the K2 and other modern rigs hard to zero, as I
have NO tone matching judgment.
What I do is jump between cw and cw reverse until I cant
hear any difference, that sometimes takes some time
The homebrew receiver is easy though, I turn the bfo on
and adjust the tuning till I get below
Most modern transceivers, including
the Elecraft rigs, have virtually no output within 100 Hz or so of the
carrier frequency, thanks to the excellent I.F. filters they use. That makes
finding zero beat with the sidetone mandatory to avoid an error or 100 Hz or
more in trying to tune onto the othe
It's a mistake to think that a tone deaf person has any trouble zero
beating. It just isn't so. That's because the frequency of the tones is
immaterial.
The "trick" is to know how to hear the beat note. One doesn't care what the
frequency of the signal is or whether it's any where near the sideto
On Wednesday 11 July 2007 14:25:35 Gary D Krause wrote:
> I was just wondering what people prefer.
I have used audio zero beating since my first station:
separates, an Eddystone EA12 and Yaesu FL-101.
And I tune my own pianos.
Ian, G4ICV, AB2GR, K2 #4962
--
Thanks Bill. It's good to know that the K3 will do that. I understand that I
am zero beating in both cases. I'm not tone deaf, it's just that it takes me
longer to match tones. Usually, by the time I get the tones matched the
station I wanted to contact is either gone or in a QSO with anothe
My Z100 kit is intended to allow fast matching the incoming signal with
the side tone, through 24 LEDs in a spectrum display, 25 Hz per LED, to
give you the direction to adjust and the mis-tuning magnitude.
Jack K8ZOA
www.cliftonlaboratories.com
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