[aprssig] FBI Equivalent Of An APRS Tracker

Steve Noskowicz noskosteve at yahoo.com
Mon May 9 23:05:30 EDT 2011

So many adjustments!   UHF "APRS"...

The transceiver chip looks pretty interesting.  Too bad they didn't figure out what the frequency was.  Looks like a SAW resonator on the board (RFM RFI172)  It didn't search on the RFM site:

Then, what's that that looks like an unencapsulated ceramic chip by the MAX chip on the RF board?? 

The chip above the ZEMICX chip a memory   ???4008CAAA  8k memory ??
Perhaps it stores the data and regurgitates it on command.

If you want ZEMICS App note(s) and data sheet(s).  There's several:

Now that I've used the X-Bee modules and have some, I'd be inclined to use them...

 73, Steve, K9DCI   USN (Vet) MOT (Ret) Ham (Yet)
I served during the cold war, so you can continue to be served a cold one.

--- Stephen H. Smith wrote:

> This article from the Wired.com
> website shows the disassembly of an FBI tracking device
> similar to an APRS tracker.
> . <http://www.wired.com/threatlevel/2011/05/gps-gallery>
> And an article about a person finding one of these things
> on their car:
> . <http://www.wired.com/threatlevel/2011/05/gps>
> --
> Stephen H. Smith    wa8lmf (at) aol.com

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