[aprssig] FBI Equivalent Of An APRS Tracker

[Jon K Hellan]

On 05/10/2011 05:23 PM, Peter Baumgartner wrote:
>
>> So many adjustments!   UHF "APRS"...
>
>> The transceiver chip looks pretty interesting.  Too bad they didn't figure
>> out what the frequency was.

Just google the datasheet. It's an ISM 433 MHz chip.

Jon LA4RT

  Looks like a SAW resonator on the board (RFM
>> RFI172)  It didn't search on the RFM site:
>> http://www.rfm.com/products/sawresonators.php
>
>> 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:
>> http://www.datasheetarchive.com/XE1201-datasheet.html
>
>
>> 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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>
>
> Peter Baumgartner
> WWW: www.timetronic.it
> eMail: peter.baumgartner at timetronic.it
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