On Feb 12, 2006, at 6:06 PM, Cathy James wrote:
Don Wilhelm wrote:
Cathy,
Yes there is a simpler way to do that! That way is called
Spectrogram - an
audio spectrum analyzer that runs on a Windows computer (there are
others
that will work on other OS's, but doesn't everyone run Windows <G>).
Actually I am reading this on Linux. But the machine is dual-boot
with a Windows partition, so in a way the answer is still "yes". :-)
Thanks to Don and everyone who replied. I have whipped up the
connector cable and calibrated everything with Spectrogram. I
don't know how well the result will sound, but the passband sure
looks like it's in the right place now. :-)
I did my alignment on a Linux machine using one of the digital mode
programs which had a spectrum display (possibly it was GMFSK, but if
was a few years ago so I don't remember for sure.) There are many
ways to skin that cat :^)
73,
Bob Nielsen, N7XY
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