[aprssig] FBI Equivalent Of An APRS Tracker

[Wes Johnston, AI4PX]

That would be a short range link... so  I guess they do a "drive by" and
download the data from curbside as opposed to live tracking.  Of course it
would be easy (and smart) to make it beacon while moving too.

Wes
---
The world needs more geniuses with humility because there are so few of us
left.



On Wed, May 11, 2011 at 04:36, Jon K Hellan <hellan at acm.org> wrote:

> 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
>> Phone: (+39) 0474 474168
>> Fax: (+39) 04746455
>> Mobil: (+39) 329 4960006
>>
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>
>
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