Nmea Operation; Nmea Input; Nmea Output; Table 12 - Nmea Input Parameters - Uniden UM455 Owner's Manual

Specifications

NMEA Operation

This radio supports NMEA0183 version 4.10.

NMEA Input

If you have difficulty getting the UM455 to receive data from your GPS receiver,
check the device's configuration. It should be set to the parameters shown in the
table below.

Table 12 - NMEA Input Parameters

Baud rate
Data bits
Parity
Stop bits
Data amplitude
Drive capability
• Status:RMC > GLL > GNS > GGA
• Latitude/Longitude:RMC > GLL > GNS > GGA
• UTC Time: RMC > GLL > GNS > GGA > ZDA
• Date: RMC > ZDA
• Speed / Course:RMC
NOTES :
• If the radio receives only a GLL sentence, the radio does not display the current
speed, course, and date.
• If the radio receives both RMC and GLL sentences, the radio uses only the RMC
sentence.
• Status data is used to check whether the GPS data is valid or invalid.

NMEA Output

When the radio receives a DSC call (Distress, Position Reply, or Position Send), it
outputs a DSC/DSE sentence from the NMEA output port.
NOTE: When the radio receives a distress call, it outputs a sentence in the following
format.
• $CDDSC,12,3081234000,,07,00,0354013946,0657,,,S,E*6D
• $CDDSE,1,1,A,3081234000,00,60875646*13
The radio supports RMC, GLL, GNS, GGA
4800 bps
and ZDA sentences. When these sentences
8
are received, the radio displays latitude/
None
longitude, date, time, course, and speed.
If any sentence except an RMC or GLL
1
sentence is received, the radio uses the
Over 2.0 V
information based on the following priority
Over 10 mA
order.
63