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Main Menu
To select a transfer mode:
1. From the ‘Setup’ tab, use the ARROW KEYPAD to select ‘Interface’ at the top of the page.
2. Use the ARROW KEYPAD to highlight the ‘Serial Data Format’ fi eld and press ENTER.
3. Use the ARROW KEYPAD to select the desired data transfer format and press ENTER.
4. Highlight the ‘Transfer Mode’ fi eld and press ENTER.
5. Use the ARROW KEYPAD to select the desired setting and press ENTER.
If ‘Garmin DGPS’ or ‘RTCM In/NMEA Out’ format is selected, additional fi elds are provided to
control a Garmin differential beacon receiver directly from your GPSMAP 196. You may have the unit
automatically scan for the DGPS beacon signal or you can enter the beacon frequency and bit rate on
the unit and the information will be used to tune the beacon receiver.
To have the unit automatically scan for a frequency:
1. With the unit set to ‘Garmin DGPS’ or ‘RTCM In/NMEA Out’, use the ARROW KEYPAD to highlight
the ‘Beacon’ fi eld and press ENTER.
2. Highlight ‘Scan’ and press ENTER. The numbers in the ‘Frequency’ fi eld will change as the unit scans
from ‘284 kHz’ to ‘325 kHz’, ‘200’ bit rate, then ‘100’, at 6-second intervals.
To restart the scan:
1. 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 ARROW KEYPAD to highlight
the ‘Beacon’ fi eld and press ENTER.
2. Highlight ‘User’ and press ENTER.
3. Highlight the ‘Frequency’ or ‘Bit Rate’ fi eld, press ENTER, then enter a frequency or bit rate and press
ENTER when done.
Setup Tab: Interface
Select ‘NMEA Out’ for connection to NMEA-compatible devices.
If you select ‘Garmin DGPS’ or ‘RTCM In/NMEA Out,’
additional data fi elds are provided allowing you to control the
frequency and bit rate that the DGPS receiver uses.
190-00283-00Backup.indd 97 12/8/2002, 8:09:47 PM