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Some stuff I learned about GPS Tracking devices

ItsGrowTime

gets some
Veteran
I wrote this post in another thread but figured it deserved its own thread. It's a hodgepodge of what I learned about LE GPS tracking devices. These days even DeWalt, the tool company, makes them. Search around the net and you can find the manufacturer's websites with technical data, video demos and all kinds of good info.

GPS trackers were on my mind recently due to some suspicious type activity I noticed and did some online research into the units themselves. Then I did a sweep of the interior and underside of my vehicle. Car was clean and I won't put myself in that sketchy situation again. I think I just freaked myself out but I learned some things in the process.

Anyway, some things I learned:
The ones used today by LE are still pretty large (at least 3"x2"x3") and are mounted either with two sided tape or magnets. They have a battery that needs replacement (or charging) approximately once a week. This pretty much rules out any interior placement of the device in your car unless they plan to taking your car within a week. Also because you would probably find it while cleaning out the stale french fries between the seats. Your car should never be left unlocked anyway.

Some have hard wired power connections but those wouldn't be used by LE due to time for install, varieties of cars, as well as possible technical problems like the unit making your car stall out or something. LE is also somewhat limited in where the device can be placed. If too near the engine, then RF interference from the engine is possible as well as heat issues if the GPS housing is plastic. Same goes for wheel wells where brake heat gets very high and exhaust pipe/muffler areas. Therefore, most are mounted in the rear half of the car under the trunk area (but away from exhaust pipes). Check around hanging spare tires and stuff! Don't leave any area under the car unchecked though! Search everything! Laziness is not a good trait when you're trying to stay out of jail! There are aluminum housings so never assume a mounting place is impossible. Just wait for the car to completely cool off and get your hands in all the nooks and crannies of the underside looking for a little box with nothing else attached to it.

The trackers don't send real-time data to the police through the satellites. Instead, they use cell phone networks (Verizon and T-Mobile were the dominant networks I saw) and "call" home with stored location info (sent via SMS, text msg, or phone signal), which are user programmable times and/or events like the GPS turning on when car starts (some have vibration sensors). That info goes into a computer database, accessed through a web-based front end with report creating capabilities (thanks Google Earth). The units obviously can't be any smaller than your average low end cell phone!

The tiny "bugs" that you see in movies are only used in movies. They don't exist for real GPS tracking, or at least for what your average local PD can afford and obtain. FBI, CIA, etc probably has stuff like in movies but if those peeps are on your ass then good luck bro. GPS is the least of your worries.

There's a variety of small USB GPS trackers that are advertised on infomercials called the TrackStick. It's a low budget chinese knock off type designed for wives to track cheating spouses or the like. They are substantially smaller than the types of devices described above. The catch is that they have no communication features and are just USB devices, the smallest is not much bigger than a thumb drive but there are larger versions. They must be removed from the vehicle, hooked up to a laptop, the data downloaded, and reinstalled/recharged. The battery life is advertised at 80 hours, but probably a couple days in reality. I doubt LE uses these sorts of devices because of the constant physical contact needed with the device, the short battery life and 2 hours to recharge or battery replacement, lack of communications, cheap plastic housing, and the relative inability to "certify" the data as being accurate for evidentiary purposes. There are several variations of this USB theme but they are all roughly the same. The exact info is on their website. I don't know for sure that LE doesn't use these but they do have better options available for their purposes, and buying GPS devices from informercials doesn't seem very "cop like".

Overall they are pretty advanced pieces of equipment (some use similar GPS technology to car GPS systems with gyroscopes and the like) but they still must be physically attached to your car and not be noticed, while holding a relatively short battery charge. At roughly 3" square and easily reached for attachment, and removal for battery replacement, you should NOT miss one if you routinely check the underside of your vehicle. They have been ruled constitutional but since you did not consent to the installation, if you find one, do whatever you want with it! (after you finish shitting yourself and breaking down your op of course! Some have "tampering" alerts they call out when messed with.) They are for record-keeping and evidentiary purposes, not so much for actively tracking where you are driving at any given moment. No one is sitting at a computer screen watching your car as a little blip driving to your mom's house or the hydro shop. They are pulling the records for probable cause and evidence to build a case against you based on your movements over time.

There are active GPS trackers but they are big, expensive, and require special hookups (think OnStar). No LE would use something like that. The most often reporting I saw for LE suitable devices was 5-10 seconds and that's the length of the cell phone call needed to send the data to the database. Companies with fleets of 18-wheelers use active real-time monitoring systems.

I saw "bug scanners" for sale online that claim to find all manner of bugs, including GPS based on the frequencies the devices use. I don't know if they work but they sell for $450 and up. Seems expensive when you can just eyeball the underside of your car with a flashlight for the cost of the flashlight and a little knowledge of what you're looking for.

If cops are tracking the GPS in your cell phone then you already screwed up way too much and it's only a matter of time before they arrest you. If you suspect something like that or have any concerns then either do NOT take your cell phone when you drive or take the battery out of the phone completely. If you have a GPS system in your car then you can just remove the fuse to disable the system electrically.

Hope this helps some people understand GPS tracking used by LE a bit better.
 
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just one more thing A cell phone can be access by law enforcement even if you turn it off it does not matter if it has gps or not the mic in your cell phone they can activate and listen to you where ever you are the only way to stop it is to remove the batteries for the time you don't want to be heard no batt no mic. Just thought you all might want to know.
 

zenoonez

Active member
Veteran
If you are involved in a non med state you should have a stash of throw away phones no doubt. Just keep them off and check the messages in public places like the mall or a restaurant.

Edit: def great info on the gps systems though, I didn't know they were so big.
 

Lazyman

Overkill is under-rated.
Veteran
just one more thing A cell phone can be access by law enforcement even if you turn it off it does not matter if it has gps or not the mic in your cell phone they can activate and listen to you where ever you are the only way to stop it is to remove the batteries for the time you don't want to be heard no batt no mic. Just thought you all might want to know.

This only applies to certain makes, I remember Motorola and Samsung phones were susceptible to this "hack" but I remember LG phones were not. TO be safe you can remove batteries when visiting friends grows.
 
T

tonto

since it needs cell coverage if you were really paranoid could you just get a cellphone signal blocker?
 

dtfsux

Member
a cell phone blocker would only work temporarily. As soon as you removed the jammer, the device would transmit. Or the device could be retrieved physically by LEO.

I did some research and preventing GPS tracking is tough. If you used a RF finder, you may be able to find a tracker that was transmitting signals. But what if the tracker only uploaded 1-2 times a day, you would miss the transmission. Supposedly theres no way to find if theres a device receiving GPS signals.

Another alternative is a GPS jammer or cloaker that gives different GPS info
 

Hephaestus

Member
Um... I'd be seriously surprised if there aren't any units smaller than 3x2x3" - you could literally grab parts to do it smaller using off the shelf parts @ sparkfun; seriously - go look... Edit... Actually the commercial lojacks we use at work are smaller than that...

GPS & GMRS Module - 1.75"sq: http://www.sparkfun.com/commerce/product_info.php?products_id=7917
Then you just need a little brainpower... (0.7x1.3x.03) http://www.sparkfun.com/commerce/product_info.php?products_id=9220
Then it's just a little memory (probably microsd card) and a li-ion battery and you're done... WAY under 3x2x3 - fit it into a 2" square project box...

But... Even funnier - the spot gps messenger is even smaller than that - satellite connection... and smaller than you're talking still http://www.findmespot.com/en/index.php?cid=102 2x3x1
 

grouchy

Active member
There was a post in this section a while back about a guy who was tracked and busted with gps and it showed him going from his home to the grow shop then to his grow house. It showed him doing this over and over and even told of the times that the battery was dead and when they changed it. I believe he had some fancy elevator installed in the grow house that went down to a cave if anyone else remembers the thread or link.
 

ItsGrowTime

gets some
Veteran
Um... I'd be seriously surprised if there aren't any units smaller than 3x2x3" - you could literally grab parts to do it smaller using off the shelf parts @ sparkfun; seriously - go look... Edit... Actually the commercial lojacks we use at work are smaller than that...

GPS & GMRS Module - 1.75"sq: http://www.sparkfun.com/commerce/product_info.php?products_id=7917
Then you just need a little brainpower... (0.7x1.3x.03) http://www.sparkfun.com/commerce/product_info.php?products_id=9220
Then it's just a little memory (probably microsd card) and a li-ion battery and you're done... WAY under 3x2x3 - fit it into a 2" square project box...

But... Even funnier - the spot gps messenger is even smaller than that - satellite connection... and smaller than you're talking still http://www.findmespot.com/en/index.php?cid=102 2x3x1

Interesting info, though my cursory review shows the FindMe device to function similarly through cell phone networks as the devices I mentioned. The "real-time" communication of the FindMe only sends a message out through their satellite network but it still transmits the data to the end user through an SMS message via cell phone network at 5 minute intervals. It's still not direct point-to-point communication and it's not much smaller than the devices I mentioned above. The website says 3.7"x2.6"x1". It's longer and wider, yet slimmer than most other battery powered devices.


Current GPS tracking technology that LE would use functions the same way and are roughly the same sizes.
 

Hephaestus

Member
Really it comes down to - it can be done much smaller - very easily... Heck they could just put a generic cellphone in a waterproof case with a magnet and mount it to your vehicle and get the functionality... I've seen a few phones now that can be tracked online just by downloading some software to it...
 

ItsGrowTime

gets some
Veteran
^^^
You assume cops are smart enough to engineer their own devices or "think outside the box" with a simple cell phone with GPS enabled.

They like spending taxpayer money to buy the cool "toys". If the toys help them bust somebody then all the better. I was focusing on commercial products advertised for LE purposes which is by far the most likely models to be purchased. But you do raise the point that, as always, YMMV!
 
G

growcodile

sweet GPS information!

If you are involved in a non med state you should have a stash of throw away phones no doubt. Just keep them off and check the messages in public places like the mall or a restaurant.

Edit: def great info on the gps systems though, I didn't know they were so big.

this is also excellent advice !! dont let someone filter and narrow down/match your unregged cell phone to your regged one ..
 

GrowerGoneWild

Active member
Veteran
Let me throw this in..

The garmin handheld I have has a trace route function, Even I could rig it up to trace a route for a few days, with a magnet, and attach it to your vehicle. Its not much bigger than a pack of cigs.

Scarry thought, I'm gonna have to try this on myself. I dont want to go too much into detail in case somebody get the wrong idea with this.
 

goody420

Member
Let me throw this in..

The garmin handheld I have has a trace route function, Even I could rig it up to trace a route for a few days, with a magnet, and attach it to your vehicle. Its not much bigger than a pack of cigs.

Scarry thought, I'm gonna have to try this on myself. I dont want to go too much into detail in case somebody get the wrong idea with this.

The garmin wouldnt stay on that long, my garmin only stays on for 2 hours if its not charging. I had a tracker i bought for 150, it had a magnet on it and i could stick it under someones car, it stayed on for 2 weeks.
 

GrowerGoneWild

Active member
Veteran
The garmin wouldnt stay on that long, my garmin only stays on for 2 hours if its not charging. I had a tracker i bought for 150, it had a magnet on it and i could stick it under someones car, it stayed on for 2 weeks.

Mines a garmin handheld, not a car unit. Its your typical geocaching handheld.

It stays tracking until it runs out of battery or memory.

I dont know what garmin unit you're using, But my garmin does not turn off in 2 hours. And it does not have a charger.
 

Lord Doobie

Member
Interesting info for commercial ops...
It seems reasonable that LEO would use the magnet method and place the unit on top of the frame wherever he could...out of site
Perhaps they use the latter part of the car because it's parked and simply easier to approach from the rear especially if parked in a garage of sorts
It also seems reasonable to be able to build/buy a track sweeper for cheap these days so you can DIY and know beyond a doubt if your car is being tracked


[Talking on your cell phone and driving is the equivalent of a drunken driver behind the wheel being 4 times more likely to have an accident. Texting behind the wheel is actually 8 times more likely to have an accident and twice as likely as the drunken driver rate. Don't be an arrogant asshole and think you're superior to us mere commoners. You're not. The human brain can't handle phoning/texting and driving at the same time and you are only fooling yourself.] <= yeah...I just watched Oprah
 

ItsGrowTime

gets some
Veteran
Mines a garmin handheld, not a car unit. Its your typical geocaching handheld.

It stays tracking until it runs out of battery or memory.

I dont know what garmin unit you're using, But my garmin does not turn off in 2 hours. And it does not have a charger.

It sounds like the same principle as the TrackStick I wrote about.
 

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