[TheList] Music over the Police/Fire channel

Fri May 28 12:26:15 AEST 2010

I would guess that a unit wouldn't even know if an analog signal was
interfering with a p25 transmission other than no being able to "connect".
Pure speculation though.

-----Original Message-----
From: thelist-bounces at radiowiki.org.nz
[mailto:thelist-bounces at radiowiki.org.nz] On Behalf Of Mark Robinson
Sent: Friday, 28 May 2010 11:52 a.m.
To: nzscanners at googlemail.com; thelist at radiowiki.org.nz
Subject: Re: [TheList] Music over the Police/Fire channel

Steve Austin wrote:
> The interference is in fact an uplink that is running. the music is the 
> National programe (Concert program) on national radio. I have been 
> monitoring this issue for more that 3 years now. With the recent changes 
> to the radio freq's it is now more prevalent. Its a commercial radio 
> station up link not a person maliciously causing it. The RFS (or MED) 
> don't appear to be following it through. Probably because the users i.e 
> police/fire havent seen it as a problem until now.

The interference this week was an LPFM station.

Intermod involving other stations as well is still a remote possibility.

Given how hard it is to solve these problems with analogue systems just
think 
how bad it will be with APCO P25.

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