Garmin 190-00683-00 Manuale Utente

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. 

1.  Press

MENU.

2.  Highlight

Restart Scan, and press ENTER.

1.  With the unit set to

Garmin DGPS or RTCM In/NMEA Out,

highlight the

Beacon field, and press ENTER.

2.  Highlight

User, and press ENTER.

3.  Highlight the

Frequency or Bit Rate field, and press ENTER.

4.  Enter a frequency or bit rate. Press

ENTER when finished

When the unit is receiving a DGPS signal, the Signal to Noise Ratio 

(SNR) and Distance fields show data. The SNR range is 0 dB to 30 

dB, with 30 being the best. The Distance field might or might not 

show data, depending on the signal being broadcast from the DGPS 

site.
The DGPS beacon transmitters are operated by the United States 

Coast Guard (or similar government agency in other countries), 

which is 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 

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