Bob Dengler wrote:
> At 4/10/2006 02:13 PM, you wrote:
>
>> Tuning the transmitter fixes, filters mask.
>> Unfortunately without a spectrum analyzer, you'll never know it's in
>> comb mode. I've done this on three systems, two VHF and one 220,
>> and they all act about the same. Tune the TX for max output, and
>> you'll end up on or very near comb mode.
>
> Really? Guess I'm spoiled with the Midland 13-509 & G.E. radios: both are
> fairly difficult to make spurious even if you try.
>
> A long time ago I spent some time working with an old Standard VHF repeater
> that was given to me. It seemed to behave as you described your systems:
> spurious unless tuned just right & with a spectrum analyzer. I wrote it
> off as defective & returned it.
>
> Bob NO6B
Yup-that's the difference between good design and what we call
P-squared-D...
--
Jim Barbour
WD8CHL
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