Yes, thanks. I have used that to get in the right octave and then tried
to pitch match.
Thank you for the info about not narrowing past 500Hz. I have used
gMFSK on Linux to examine the spectrum, and used that for training my
ear, and seen the bandpass but did not know to look for the Jones
effect.
I remember having trouble with my HW-16 when I was a novice and I think
we lowered the output of the neon lamp relaxation oscillator to reduce
its tendency towards ear-splitting.
On Fri, 11 Jun 2004 5:49am, Michael Babineau wrote:
"Leigh L. Klotz Jr" <[EMAIL PROTECTED]> wrote :
I find zero-beating the KX1 hard.
Try setting the filter to 500hz and peaking the received signal ...
works for me. It takes a bit of practice but become intuitive in a
short while.
The reason I use the 500 hz setting and not a narrower setting is ...If
you hook the KX1 up to a PC running something like Spectogram you'll
probably see that the center of the passband shifts a bit lower than
normal with the filter at the 300 hz position, such that 600Hz is no
longer in the center of the filter passband.
I'm not sure what the reason it but I have observed the same thing on
my Ten Tec Scout with the variable "Jones" filter so I an inclined to
believe that this is an artifact of the design / implementation of this
sort of filter ...
perhaps Wayne can comment on this.
73,
WA5ZNU Leigh
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