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GPSMAP 182/182C Owner’s Manual 43
MAIN MENU > TIDE TAB
The Differential Receiver status shows one of the following:
• Off—No optional beacon receiver attached or enabled in the
Comm menu or WAAS off.
• Searching For WAAS—WAAS is enabled and receiver is
searching for WAAS signal
• Using WAAS—WAAS capability enabled and unit receiving
WAAS corrections.
• No Beacon Signal—DGPS receiver attached, but not
transmitting RTCM data to GPS.
• Tuning Beacon—receiver is tuning manual DGPS
frequency.
• Receiving Beacon—unit is receiving DGPS corrections.
• Scanning Beacon—DGPS receiver is scanning for available
frequency.
The Differential SNR (Signal to Noise Ratio) indicates, on a scale
to 0-30db with 30db being the best, the strength of the DGPS signal
being received. The SNR depends on the mounting of your DGPS
receiver and the distance from the DGPS transmitting station. If no
optional DGPS receiver is used with the GPSMAP 182/182C, the
DGPS Rcvr field displays Off.
GPS Tab Options
The GPS tab features an options page that provides access to
functions and features relating to the GPS Info display.
To display and select the GPS Tab options:
1. Press MENU.
2. Using the ROCKER, highlight an option, and press ENTER.
NOTE: If a DGPS receiver is attached to the unit and Garmin
DGPS, RTCM In/NMEA Out, or Other DGPS is enabled on
Port 2, WAAS is automatically disabled (WAAS off). It is not
possible for the GPSMAP 182/182C to receive WAAS and
DGPS corrections at the same time.
GPS Tab Options