5
GPS OPERATION
5-3
■ GPS format types
GPS position data has 2 TX modes, D-PRS and NMEA. Moreover, with the D-PRS
mode data, 5 position formats. Position (Mobile station/Base station), Object, Item, and
Weather, are selectable.
Examples: When the caller’s TX format is D-PRS Position (Mobile)
D-PRS D-PRS is a function that simultaneously sends position
data received from the internal or external GPS receiver,
using the slow speed data packet space, along with
voice.
Position (Mobile) A station operating from a vehicle, or other position, away
from it's normal base position.
Position (Base) A station operating at home or in a building.
Object Transmitting Object data such as an earthquake
information, satellite track information, and so on.
An Object contains a time stamp.
Item Transmitting Item data such as a trafc accident,
lighthouse, antenna, or DV access point position, and so
on.
An Item does not contain a time stamp.
Weather A station transmitting weather information received from
a weather device.
NMEA A station transmitting position data (NMEA0183) received
from the GPS receiver.
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