How Transmitters Work and Where Are They Used

Global Positioning System (GPS) tracking units are gaining widespread adoption among consumers. The most commonly owned GPS tracking unit is a small directional system individuals place in their cars so they receive directions to where they are going. However, civil and military users need a stronger system that provides improved location accuracy. These individuals turn […]



Global Positioning System (GPS) tracking units are gaining widespread adoption among consumers. The most commonly owned GPS tracking unit is a small directional system individuals place in their cars so they receive directions to where they are going. However, civil and military users need a stronger system that provides improved location accuracy. These individuals turn to differential GPS devices, which can provide accuracy to about ten cm, in the best implementations. This particular device offers greater location accuracy by obtaining digital correction signals from local, ground-based transmitters.

Today, individuals and organizations that wish to acquire differential GPS technology purchase certain Transmitters, as these models offer alarm monitoring, hot swap service capabilities, and other features that deliver user-friendly operation and accessible technical support. The information below will look at some of the sectors that benefit from the improved accuracy delivered by certain transmitters.

Search and Rescue Operations

While a GPS system used in a car merely approximates an individual’s location, the device will be accurate enough to help the driver reach his or her destination. The device is able to infer the individual’s location based on landmarks, and even when the device is slightly off, the driver is still able to make an educated guess as to where to go next. The driver can even pull over and call for help if he or she is lost. However, when an individual is trapped at sea, there are no landmarks for the individual to approximate his or her location. Additionally, the individual is unlikely to have a way to contact search and rescue professionals. However, if the individual is carrying a differential GPS device, search and rescue professionals are able to pinpoint an exact location, regardless of whether the individual is trapped at sea or lost in the wilderness.

Fishermen can arm their boat with one of the many transmitters, while hikers can use portable GPS devices to ensure they can be tracked in areas where a cell phone has no service. This means when an individual gets lost, search and rescue workers can retrieve the individual quicker since less time is spent tracking the individual and a smaller area is searched.

Animal Tracking

State game and fish departments and other wildlife organizations use differential GPS transmitters for a number of reasons, but the most common reason is to track the movement of endangered species. For example, researchers in Jackson Hole, Wyoming, outfitted a bald eagle with a tracking device to evaluate nesting habits of these particular birds. Scientists have also used differential GPS transmitters to track animals bred in captivity as they are introduced back to the wild. Since this research is funded by grants worth tens of thousands of dollars, scientists need to make sure they know where tracked species are at all times so grant money does not go to waste. Cetain types of transmitters ensure more accurate results while protecting the financial investment made by outside donors.

These are a couple of the many areas where individuals benefit from the greater accuracy delivered by certain transmitters.

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