wtp
Member
64 seconds is the tower
10 seconds is the stolen article.
10 seconds is the stolen article.
Already done. Just find the thread on that radio site. It has a lot of reference material.I don't guess we can actually decode the signal
That is not entirely true. Some analysis has been done. One can extract the transmitting base station identifier and other things. Google sdrtrunk and LoJack. Yes, sdrtrunk has a choice to decode LoJack although the documentation is incomplete and there are some errors.Decoding the signal will only yield an unusable multi-digit reference code.
No specific user info.
I'm just put in the 173.075 frequency on my SDS200 and I get a squawk about every 10 seconds or so. It will squawk a few times and then maybe be silent for 1 minute. Sometimes I get what sounds
Brian (COMMSCAN)
64 seconds is the tower
10 seconds is the stolen article.
And what are you going to do with all of that random alphanumeric information?One can extract the transmitting base station identifier
Yeah I think this kind of sounded like what I was hearing on Saturday or Sunday when I shot the video. It seemed like there would be a period of time every so often where you would hear no signals whatsoever for about one minute and then the cycle would start over again that sounded a little bit more like what you're describing in this example.Not quite right. There are 8 8-second windows in each 64 second period that can be used by different base stations. Stolen articles replay between those transmissions.
Decoding the signal will only yield an unusable multi-digit reference code.
No specific user info.
10-1 | WPLP844 | Clarksville | MD |
10-2 | WPLP844 | Baltimore | MD |
10-3 | WPLP844 | Frederick | MD |
10-4 | WPLP844 | Prince Frederick | MD |
10-5 | WPLP844 | Hillsville | MD |
10 seconds is normal vehicle chirp rate. Actual Stolen vehicles are 1 second intervals. There's already tons of info on this on the RR and various other wikis as well as an RR forum thread about decoding it.64 seconds is the tower
10 seconds is the stolen article.
Not always. Local banks don't use dye packs. They use radio transmitters and several patrol vehicles have the necessary triangulation equipment to track the bait money.If you hear a data burst once every second, that is a LoJack unit that has been activated. If you have ever seen 4 VHF antennas arranged in a square on the roof of a police car, they are used for the directional display on the LoJack receiver.
Around the 216 or so MHz range. Great stuff.Not always. Local banks don't use dye packs. They use radio transmitters and several patrol vehicles have the necessary triangulation equipment to track the bait money.
Channels 19, 20, 50, and 151-160 are available exclusively for law enforcement tracking purposes.Around the 216 or so MHz range. Great stuff.