Uniden UBCD996T Owner's Manual download pdf (Page 117)

117

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.

The GPS must have serial output, and be capable of outputting standard NMEA

sentences GGA and RMC. (See “NMEA-0183 ver.3.01” which can be found on the

web.) Be sure to set the GPS to output NMEA.

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, 9-pin serial connector. Insert that plug into the male, 9-pin

socket on the back of the scanner labeled . Once the GPS is

connected, refer to the sections dealing with inputting selections to enable Location

Based feature operation.

When the scanner first starts receiving a signal from the GPS, it briefly displays

and silently locks and unlocks all radio sites according to your

GPS Compatibility

Connecting Your Scanner to a GPS Device

Initial GPS Operation

REMOTE/GPS

GPS

Connected

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Uniden UBCD996T Owner's Manual Page 117