[FedCom] 165.950 & PL's

Sun, 31 Mar 2002 22:51:58 -0800 (PST)

Typically when programming a two-way radio for federal
use, a CTCSS tone (PL) is usually on the input due to
agency use nationwide or similar that might cause
interference, therefore limiting interference. As with
the agencies who typically use the same output,
sometimes the PL for the repeater output is left
Carrier Squelch, so as to recieve any encrypted
signals as well. DES and all other encryption kinda
splits the PL in half, and a radio programed to
recieve PL will not allow the encrypted signal to be
recieved in some instances. Some federal agencies
repeaters transmit CTCSS, but if you could see the
program card for the mobiles in that system, you would
see they usually recieve carrier squelch. In essence,
it kinda depends on agency requirements and the
technician doing the programing. I know from
experience. Thats why if your scanner will program a
CTCSS you only hear a short squelch tail whenever
encryption is being used. If your scanner doesn't have
a CTCSS option, you hear all that white noise
(squelch). The Uniden scanners CTCSS function works
great,as good as an issued Motorola. I use mine hear
as the local PD's have DVP. And also on the FBI / IRS
/ USPO / DEA systems. However, IRS and USMS repeaters
on VHF typically transmit carrier squelch. Hope this
helps someone.
--- "T.K. Ruffzarf" <[email protected]> wrote:
> 
> 
> 
> >From: Peter Vieth <[email protected]>
> >Reply-To: [email protected]
> >To: [email protected]
> >Subject: [FedCom] 165.950
> >Date: Mon, 01 Apr 2002 00:24:51 -0500
> >
> >Same phenomenon on 165.950 (IRS) is present here in
> Roanoke, Va.
> >Constantly keying up.  No tone detected on repeater
> output.
> >
> >At 08:51 AM 3/27/02 -0800, T.K. Ruffzarf wrote:
> >
> > >   All IRS traffic on UHF has gone silent, but
> the old VHF (165.950) 
> >keeps
> > >keying up, probably from Mex interference, they
> might have to change the
> > >input (167.0). Ruff
> > >
> >
>
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> > >
> >Peter Vieth
> >KB4FVJ
> >Roanoke, Virginia
> >_______________________________________________
> >FedCom mailing list
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> >http://mailman.qth.net/mailman/listinfo/fedcom
> 
>    With the new SENECA digital channels that BP and
> IRS have gone to their 
> is no PL per se, because ALL traffic will be
> encrypted digital.
> Can you say, bye bye feds?  They don't want ANYONE
> hearing what's going on. 
> Expect new scanner laws, followed by gun
> confiscation, AFTER they CREATE a 
> new "national emergency". (like setting off a
> suitcase nuke in a moderate 
> sized city of no strategic importance, and blaming
> "ultra-right-wing-patriot 
> terrorists") ONLY something that ghastly will scare
> americans into giving up 
> ALL personal rights and allow the globalists to
> create an American 
> dictatorship. (much the way they "allowed" Pearl
> Harbor to occur with FULL 
> PRIOR KNOWLEDGE to get the american people to
> support U.S. involvement in 
> WWII.)
> "NOTHING happens by accident. If it happens, you can
> be sure it was planned 
> that way".
> 
>
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