Furuno SC-120 - Manual (Page 52)

3. OPERATION
3-14
3. The cursor is on the BEACON field. Press the [ENT] key.
OFF
INT
EXT
Beacon receiver selection window
4. Choose appropriate option and press the [ENT] key.
INT:
For internal DGPS beacon receiver.
EXT:
For external DGPS beacon receiver
OFF:
Disables DGPS function. When OFF is selected it takes about one
minute to find GPS position.
Note: When connecting a FURUNO external DGPS beacon receiver (such
as the GR-80) to the SC-120, turn the GR-80’s remote function on to
set up the beacon receiver with commands from the SC-120. Also set
the external DGPS beacon receiver as follows: Byte Format, 8-6; First
Bit, LSB; Parity Bit, None; Stop Bit, 1; Bit Rate, 8.
5. Press the [ENT] key.
6. Choose DGPS beacon station selection method: AUTO, MANUAL or LIST.
AUTO: Automatically searches for best DGPS beacon station.
MANUAL: Manually enter DGPS beacon station specifications in the RATE
and FREQ fields, referring to a DGPS beacon station list.
LIST:
Lists five of the closest DGPS beacon stations, including
user-programmed stations.
7. Press the [ENT] key. If you selected AUTO, no further operation is required;
press the [DISP] key to close the menu. For MANUAL or LIST follow the
appropriate procedure below.
MANUAL
a) The cursor is now on the RATE field. Press the [ENT] key.
b) Choose the data rate of the DGPS beacon station to be used, among 50, 100
or 200 bps. Press the [ENT] key.
c) The cursor is now on the FREQ field. Press the [ENT] key.
d) Enter the transmission frequency of the DGPS beacon station to be used and
press the [ENT] key.