[FedCom] New Antennas on Secret Service Suburban

[Jim Johnson]

That's an interesting observation and one I neglected
to comment on in my initial post.

The Law Enforcement community in this area (city PD &
Sheriff's Department) still utilize VHF comms almost
exclusively.  (Though there is a steady migration
underway to the Michigan Public Safety Communications
System (MPSCS) - a statewide 800 MHz trunking system.)
 Not sure how that might have been impacted in this
instance.

However, I did notice...rather close up...that the
USSS personnel were continuing to use their Nextels
the whole while.

My guess is that they have with them, in one of those
ominous black vehicles, a Nextel switch of sorts that
allows them to be connected, via wireline, to the
"Nextel Network".  (I know of situations in the past
where Nextel would install a "node" in an especially
large office building to serve the employees at that
specific location and lighten the loading on their
other sites so that they were available to roamers and
other transients.)  Not sure that in this particular
case a different group of frequencies would be used or
whether the jammer can be selectively "notched" to
pass some freqs and block others.

Jim Johnson


--- listen13579 at att.net wrote:

> This site has some additional comments about the
> vehicle in question
> including some links to a possible manufacturer of
> the electronic
> equipment:
> 
> http://cryptome.org/spy-vehicle-02.htm
> 
> Law enforcement officers frequently rely on cell
> phones as a backup to
> their radios and a blanket RF jammer operating in
> the 800 Mhz band would
> affect their phones as well. I wonder if LEO's are
> advised in advance of
> a POTUS visit to make sure their communications
> plans don't involve
> cellphones?
> 
> Perhaps USSS would only turn the jamming on during
> certain times (like a
> motorcade movement) to avoid inconveniencing the
> many people, including
> White House staff, LEO's etc, whose jobs would be
> affected by cellphone
> disruption?


		
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