Location-Based (GPS) Scanning
The UBCD996T can make use of data transmitted from an attached GPS unit that lets the radio automatically enable and disable systems based on the geographic information you provide such as:
Latitude (the center of the range)
Longitude (the center of the range)
Range (the radius of a circle around the latitude and longitude coordinates selected from .5, 1, 3, 5, 10, 20, 30, and 50 miles.
You set the longitude and latitude to approximate the center of a geographic entity such as your local city and set the range to encircle that center point. By doing so you set aside reception of an adjacent city that otherwise might be undesirably received from one extremity of your city.
In addition, all geopolitical areas are not perfect circles. Therefore you can accommodate these variations by entering multiple sites for the system, eve though the system actually has one site, and use different location settings for each of those additional sites.
See the programming section for specific steps required to apply location data to a radio system.
GPS Compatibility
The GPS must have serial output, and be capable of outputting standard NMEA sentences GGA and RMC. (See
Connecting Your Scanner to a GPS Device
To use the Location Based features of the scanner, you must connect a GPS to the unit. Use the cable provided by the GPS manufacturer. Make sure that their cable terminates in a female,
Initial GPS Operation
When the scanner first starts receiving a signal from the GPS, it briefly displays GPS Connected and silently locks and unlocks all radio sites according to your
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