Ever since GPS technology has become mainstream people have been wondering how they can use it to track things in real time and a few companies have invented some novel devices that allow you to do it.

For clarity we’re going to break the electronics down into two parts.

We have the BEACON which is the part of the system that moves around and relays its’ position to the RECEIVER which shows the user the positional data or whereabouts of the beacon.

There are two basic approaches to relaying the beacon positional data back to the receiver and each of them have their own unique drawbacks.

The first method is to use the cellular network to send messages to the receiver device. Using the cellular network allows the system to be used pretty much anywhere that you have a cellular network but it might not work in the back-country where people would normally go hiking, boating, fishing or camping. If you intend to use the tracking system outdoors in those back-country places to track your dog if he gets lost then you’d better hope your dog has some good survival instincts and tracking ability of his own.

The Zoombak “Advanced GPS Car and Family Locator” is one product that uses a cellular network to relay the data back to the receiver. The receiver in this case is a web site on the Internet so you’ll need internet access to be able to use it.

Although Zoombak doesn’t charge a setup fee for the device; you’re going to have to pay a minimum $9.99 a month for the service and about $175.00 for the electronic beacon that you attach to the object you’d like to track.

The real drawbacks to the Zoombak is that you need internet access because it doesn’t come with a handheld receiver and that you’ll have a monthly service fee for as long as you’re going to use the device.

The second method is to use publicly accessible, free radio signals to send messages to the receiver device. Since the device is using public radio signals you can expect that there will be no monthly service fees which is a real bonus since paying a service fee for every electronic device that you own starts to add up to some real coin very quickly.

RoamEO is one manufacturer that makes these types of GPS tracking system devices that is made specifically for dogs. They give you a handheld receiver that tracks the position of the beacon in real-time so you can even use it in the back-country where there’s no cellular systems.

Since this device works on radio waves there’s some pretty strict regulations that they have to adhere to and one of them is the power level that they’re allowed to transmit. The handheld receiver will handle up to 3 beacons and the beacon device transmits at 2 watts on 154.6Mhz so the beacon isn’t going to be in Juneau, Alaska and transmit to you California.

The biggest drawback is that the device is only going to transmit about 1 mile and you’re going to foot about $400.00 for 1 beacon and the handheld receiver.

I really like the Zoombak device and if I didn’t have so many projects on the go I’d like to get ahold of a Zoombak to see if it could be hacked to be used off of their system and used independently of their service fees.