Garmin GPSMAP 192C User Manual

Page 81

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GPSMAP 192C Owner’s Manual

75

M

AIN

M

ENU

>

C

OMM

T

AB

Status Field

SNR and Distance

shows data when

signal is received.

NOTE: The DGPS beacon transmitters are operated by

the U.S. Coast Guard (or similar government agency in

other countries), and are responsible for their accuracy and

maintenance. For DGPS transmitter problems or to find the

most updated list of frequencies and coverage areas, contact

your local USCG, or see their web site at

http://www.navcen.uscg.mil/.

To restart the scan:

Press

MENU, highlight Restart Scan, and press ENTER.

To manually enter a frequency and bit rate:

1. With the unit set to

Garmin DGPS or RTCM In/NMEA Out,

use the

ROCKER to highlight the Beacon field, and press

ENTER.

2. Highlight

User, and press ENTER.

3. Highlight the

Frequency or Bit Rate field, press ENTER,

enter a frequency or bit rate, and press

ENTER when

finished.

The Status field shows one of the following:

Tuning—the unit is attempting to tune to the specified

frequency and bit rate.

Scanning—the unit is automatically scanning through the

frequencies and bit rates.

Receiving—the unit is receiving DGPS signal and ready for

operation.

Check Wiring—the unit is not making connection with

DGPS receiver.

When the unit is receiving a DGPS signal, the SNR (Signal to

Noise Ratio) and Distance fields show data. The SNR range is

0dB to 30dB, with 30 being the best. The Distance is based on the

signal broadcast from the DGPS site.

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