Any spread spectrum systems nearby??
Burt VE2BMQ
Gary wrote:
> I have an interesting thing happening on our two meter repeater. We
> have what appears to be a blanking white noise that is present on the
> input. The repeater is a split site system with a 440 link from the
> two meter receiver site over to the transmitter site about 2000ft
> away. There are no duplexers in the system to cause problems.
>
> The link on 440 is clean of any noise, so we are quite confident the
> link is not a problem.
>
> On two meters, when a signal is anything less than full quiteing, we
> get a white noise that will almost mask the audio. We have tried
> different receivers such as the GE MVS and now a GE Master II. We
> have removed the preamplifier with minimal results. The receivers
> have excellent sensitivity and the tuning process of the receivers is
> correct. We have also tried putting pass cavities ahead of the
> receiver with no appreciable change. The antenna is a DB-224 mounted
> on a broadcast tower just below the bays of an FM broadcast
> commercial transmitter. We have turned OFF the fm broadcast
> transmitter at times to check if perhaps this was the problem but no
> change was noted.
>
> ANY IDEAS from anyone???
>
> THANKS!
> Gary - W5GNB
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