[TrunkCom] MPT1327 information

[Gary Hahn]

Compare to the following sound samples...

http://kb9ukd.com/digital/220pilot.wav As heard in NFM, but actually uses
ACSB (similar to SSB) for voice comms. The pilot tone is transmitted about
every 10 seconds.  In Milwaukee, 220.0125 is one frequency, but you may have
to tune up or down a bit to hear it.  Sorry for the scratchy copy, I'll work
on a better sample.

http://kb9ukd.com/digital/mpt_1327.wav is MPT1327, but I didn't think it was
associated with ACSB modulation.

Gary

> -----Original Message-----
> From: trunkcom-bounces at mailman.qth.net 
> [mailto:trunkcom-bounces at mailman.qth.net] On Behalf Of Jeff Kenyon
> Sent: Sunday, October 24, 2004 10:55 PM
> To: Discussion of Monitoring Trunk Radio Systems
> Subject: RE: [TrunkCom] MPT1327 information
> 
> 
> Well, I don't know.  These systems are broadcasting in ACSSB, 
> and I hear what seems to be a regular control channel  I also 
> am hearing data bursts here  The systems listed on the web 
> are MPT-1327 systems.
> 
> 
> 
> 
> 
> On Sun, 24 Oct 2004, Gary Hahn wrote:
> 
> > Bear in mind this topic split from the original.  The 220 systems 
> > discussed most likely are not MPT1327, rather SEA radio's LTR clone 
> > protocol(someone can correct me on the details there...).
> >
> > Nonetheless, nice links for the MPT1327 stuff!
> >
> > Gary
> >
> > > -----Original Message-----
> > > From: trunkcom-bounces at mailman.qth.net 
> > > [mailto:trunkcom-bounces at mailman.qth.net] On Behalf Of Mike Agner
> > > Sent: Sunday, October 24, 2004 5:39 PM
> > > To: Scan-L at listserv.uark.edu
> > > Cc: trunkcom at mailman.qth.net
> > > Subject: [TrunkCom] MPT1327 information
> > >
> > >
> > >    Since there seemed to be a little interest in this mode, I 
> > > thought I might throw out a couple of notions about decoding 
> > > packages and such...
> > >
> > >    Apart from the Winradio module for Moto and MPT 
> trunking, there 
> > > are a few other packages - some even with Yahoo support groups -
> > > that you can
> > > find links  for here:
> > >
> > >    
> http://www.strongsignals.net/access/content/software.html#DECODE
> > >
> > >    Interestingly, some can use the discriminator output, but most 
> > > seem to be able to handle tapping the speaker out for the audio.
> > > Some seem to need
> > > some sort of external modem circuit, not unlike the kind of
> > > setup you would
> > > use for Trunker.
> > >    Don't forget - there is a dedicated forum on Radio
> > > Reference for MPT1327,
> > >
> > >    73s Mike
> > >
> > > ____________________________
> >
> > _______________________________________________
> > TrunkCom mailing list
> > mailto:TrunkCom at mailman.qth.net 
> > http://mailman.qth.net/mailman/listinfo/trunkcom
> >
> > Mailman: User Guide for List Subscribers 
> > http://mailman.qth.net/subscribers.htm
> >
> _______________________________________________
> TrunkCom mailing list
> mailto:TrunkCom at mailman.qth.net 
> http://mailman.qth.net/mailman/listinfo/trunkcom
> 
> Mailman: User Guide for List Subscribers 
> http://mailman.qth.net/subscribers.htm
>