[Scan-DC] Arlington Police Locate Missing Elderly ManUsingLoJack

[Dewey]

I hear what Doug is hearing.  It's a data burst as described by Doug and not
beeping, also, it is at regular intervals.  Maybe it's a system transmitter
that sends out "Daddy" signals, I just don't know.  I do believe that when a
car is reported stolen, it is the system tranmitters that send a signal out
to cause the stolen car to go into the "alert" mode (for lack of a better
term).  Is it possible that these regularly scheduled data bursts contain
"routine houskeeping" data and include freshly reported stolen vehicle data?

Dewey

-----Original Message-----
From: scan-dc-bounces at mailman.qth.net
[mailto:scan-dc-bounces at mailman.qth.net] On Behalf Of cohenner at gmail.com
Sent: Saturday, February 05, 2011 20:21
To: Doug Kitchener; scan-dc-bounces at mailman.qth.net; scan-dc at mailman.qth.net
Subject: Re: [Scan-DC] Arlington Police Locate Missing Elderly
ManUsingLoJack

I can tell you, the range on the people transmitters are not much - if I
remember correctly, its about 1/2 a mile or so. 

The sounds you hear on the receiving device is a beeping. The beeping gets
faster or slower depending on how far away you are from the transmitter. 
------Original Message------
From: Doug Kitchener
Sender: scan-dc-bounces at mailman.qth.net
To: scan-dc at mailman.qth.net
Subject: Re: [Scan-DC] Arlington Police Locate Missing Elderly Man
UsingLoJack
Sent: Feb 5, 2011 12:48


OK, so I've programmed in the LoJack frequency below, and it's doing
something, because at regular periodic intervals I'm getting a squelch break
- possibly a data burst, as it sounds similar to the MSP helos' locator
beacons.

But, what kind of signal / modulation does it use if it spots something?  In
other woids, what does it sound like?  Also, what's the range?

Thanks!