I believe the Maxtrac noise blanker is a pulse type vs one that is
tuned to a nearby freq, but we can certainly disable it and give it a
try (push and hold monitor button until 3 beeps).
...Keith
--- In [email protected], "Al Wolfe" <[EMAIL PROTECTED]> wrote:
>
> Keith,
> Some of the local guys here had a similar problem and setup as
you on
> ten meters. It turned out that the transmitter, even though several
miles
> away, was saturating the extender (noise blanker). Turning off the
extender
> on the receiver solved the desense problem.
>
> These were not Motorola savvy guys and didn't really know what
an
> extender was or did or how they worked.
>
> It may be possible to retune the extender receiver to a
different
> frequency far enough away from the transmit frequency and still be
effective
> but not desense. YMMV.
>
> Merry Christmas,
> Al, K9SI
>
>
> >> "kb1we6r" <capyo670@> wrote:
> >> I need ideas to cure desense on a 10 meter repeater.
> >> Details;
> >> 1. 100KHz split, (29.66 out 29.56 in)
> >> 2. Maxtracs on both ends, UHF link
> >> 3. Several miles of separation
> >> 4. Sometimes it works OK with no desense, but usually when the tx
> >> comes up, a buzzing type of noise wipes out most signals, even
ones
> >> that were full quieting before.
> >> 5. The buzzing sounds like powerline noise.
> >> 6. There is some kind of wireless node nearby.
> >>
> >> What other types of noise generators could be exagerated by the
> >> additon of the 10m transmitter?
> >>
> >> Is it possible to make a notch filter out of big hardline at
100KHz
> >> with acceptable insertion loss?
> >>
> >> Would a window filter (DCI type) help with that type of noise?
> >> ...Keith WE6R
>
