[FedCom] Direction Finding Techniques for Fedcom Freqs?

[Jeff Kenyon]

Hi, I picked up some clear digital groups and those were a minority on
that system.  How many groups have you and othgers logged on that system?





On Thu, 3 May 2007, Chris Parris wrote:

> I ran Trunker on the system and have lots of active talk-group numbers. But
> I have no idea who they are or what they were talking about...
>
> - Chris
>
>  --
> Chris Parris
> Fed Files Columnist
> Monitoring Times Magazine
> chrisparris at monitoringtimes.com
> Fed Files Blog - http://mt-fedfiles.blogspot.com/
>
> ----- Original Message -----
> From: "Jeff Kenyon" <at649 at tcnet.org>
> To: "Discussion of Federal Government Communications"
> <fedcom at mailman.qth.net>
> Sent: Thursday, May 03, 2007 5:37 PM
> Subject: Re: [FedCom] Direction Finding Techniques for Fedcom Freqs?
>
>
> > We just need to find someone wiht the fancy software I.E. E-trunk or
> > something like that to try to ID some talk groups.  It was quite busy but
> > encrypted as I said.
> >
> >
> >
> >
> >
> > On Thu, 3 May 2007, Chris Parris wrote:
> >
> > > I would just find the control channel. That's one nice thing about
> tracking
> > > down a trunked system - it's always telling you it's on the air! Not
> like
> > > having to wait for someone to talk to catch a conventional repeater.
> > >
> > > - Chris
> > >
> > >  --
> > > Chris Parris
> > > Fed Files Columnist
> > > Monitoring Times Magazine
> > > chrisparris at monitoringtimes.com
> > > Fed Files Blog - http://mt-fedfiles.blogspot.com/
> > >
> > > ----- Original Message -----
> > > From: "Jeff Kenyon" <at649 at tcnet.org>
> > > To: "Discussion of Federal Government Communications"
> > > <fedcom at mailman.qth.net>
> > > Sent: Thursday, May 03, 2007 5:28 PM
> > > Subject: Re: [FedCom] Direction Finding Techniques for Fedcom Freqs?
> > >
> > >
> > > > How would this work on a trunked system though?
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > On Thu, 3 May 2007, Ken wrote:
> > > >
> > > > > Interesting challenge.  I'd assume that "signal stalker"/"close call
> > > > > capture" technology would work on digital encrypted signals.  I know
> on
> > > > > typical scanner land repeaters on a high hill, I get a hit with my
> pro
> > > 83
> > > > > just about 1 mile from the transmitter site with the unit in the cup
> > > holder
> > > > > in the "stealth monitoring" vehicle.
> > > > >
> > > > > Just wonder how small of a directional antenna one could one use
> with a
> > > > > portable that would be effective but with a very small footprint.
> > > > >
> > > > > Thanks to Tom (CT) from a message in the distant past, perhaps this
> > > small
> > > > > directional antenna would be beneficial to "The Hunt"
> > > > >
> > >
> http://www.ramseyelectronics.com/cgi-bin/commerce.exe?preadd=action&key=LPY41
> > > > > works for 400 to 1300 mhz BUT I would guess that even in the 162-174
> mhz
> > > it
> > > > > would work.....
> > > > >
> > > > > Ken
> > > > >
> > > > >
> > > > > ----- Original Message -----
> > > > > From: <JER1538A at aol.com>
> > > > > To: <fedcom at mailman.qth.net>
> > > > > Sent: Thursday, May 03, 2007 3:45 PM
> > > > > Subject: Re: [FedCom] air force base communications and encryption
> > > > >
> > > > >
> > > > > > MAYBE SOME DIRECTION FINDING IS IN ORDER     A FOX HUNT.....
> > > > > ..snip..snip...
> > > > >
> > > > >
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