[aprssig] Police-9/10 station

[Tom Russo]

On Wed, Jun 18, 2008 at 02:25:07PM -0400, we recorded a bogon-computron collision of the <k1lnx at k1lnx.net> flavor, containing:
> Is that legal? 

Depends on how the user is doing it.

> I know we can operate using tactical callsigns, but don't 
> we have to ID using some other method?

Yes, the station itself needs to id somehow.  You can't tell from the single 
object report whether that station is doing so.  The user might be (and probably
is) identifying in other packets.

As Bob B. described his usage recently, he runs his normal D7xx with his own 
call-sign, but then switches to a PM that has been set up with the POLICE call 
sign.  When seeing a police car nearby, he switches to that PM, beacons a few 
times then switches back.  

Used this way, there is no problem with the FCC ID requirements, as his station
is identifying normally for all but a few beacons.  There is no requirement 
that every packet contain the station's call sign.   Only if the station 
forgets to turn back to its own call sign after beaconing and then continues 
to beacon the object name for more than ten minutes without including its own 
FCC call sign would there be any sort of issue with failure to ID.

Putting the originating call sign in a comment field would probably satisfy
most curious users who want to know "who's doing this?"  and would guard against
problems should one forget to turn back to normal beaconing but it is certainly
not a necessary step to statisfy the FCC ID requirement.

> Mark Crosbie - N 8 M N I wrote:
> > It is someone with APRS in there vehicle that is marking where they see police cars on the freeway most likely. I have seen this suggested before.
> >
> > 73's
> > Mark Crosbie
> > N8MNI
> > London, Ohio USA
> >
> > W: http://n8mni.com
> > E: n8mni at arrl.net
> >
> >
> > ----- Original Message ----- 
> > From: "Stephen - K1LNX" <k1lnx at k1lnx.net>
> > To: "TAPR APRS Mailing List" <aprssig at lists.tapr.org>
> > Sent: Wednesday, June 18, 2008 14:04
> > Subject: [aprssig] Police-9/10 station
> >
> >
> > : Anyone know anything about this? Looks like a rogue mobile on RF, but I 
> > : wasn't sure:
> > : 
> > : 
> > : http://aprs.fi/?call=POLICE-9
> > : 
> > : There is also POLICE-10
> > : 
> > : It came through our area about 4 days ago....
> > : 
> > : Stephen
> > : K1LNX
> > : 
> > : 
> > : _______________________________________________
> > : aprssig mailing list
> > : aprssig at lists.tapr.org
> > : https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
> >
> >
> > ---
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> >
> >
> >
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> >   
> 
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-- 
Tom Russo    KM5VY   SAR502   DM64ux          http://www.swcp.com/~russo/
Tijeras, NM  QRPL#1592 K2#398  SOC#236 AHTB#1 http://kevan.org/brain.cgi?DDTNM
 "It's so simple to be wise: just think of something stupid to say and
  then don't say it."  --- Sam Levinson