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10-6
DGPS SETUP OPTIONS menu
This menu sets parameters for the DGPS
beacon receiver. (GP-1850D, or GP-1850
equipped with DGPS beacon receiver.) To
display it, press the [MENU] key followed by
the soft keys GPS/DPGS/TD OPTIONS and
DGPS SETUP OPTIONS.
DGPS
OPTION
DGPS 3D
RETURN
DGPS MODE ON
BEACON FREQUENCY AUTO
BEACON BAUD RATE AUTO
DGPS ALARM OFF
s
EDIT
Figure 10-9 DGPS setup options menu
DGPS MODE
Select ON to use the DGPS mode. The de-
fault setting is ON. A DGPS beacon receiver
must be connected to use this mode.
BEACON FREQUENCY
DGPS reference station can be searched au-
tomatically or manually. For manual search,
select MANUAL here, and use the cursor pad
to select frequency of DGPS reference sta-
tion. The default setting is AUTO.
BEACON BAUD RATE
Selects the transmission rate of the DGPS
reference station nearest you, among AUTO
(default setting), 50, 100 or 200 bps. This
setting is only effective when the DGPS mode
is “manual”; baud rate cannot be changed in
automatic DGPS mode.
DGPS ALARM
Enable/disable the DGPS alarm. When en-
abled, the audio alarm sounds three times if
position cannot be found with DGPS. The
default setting is ON.
TD SETUP menu
This menu selects the Loran C or Decca
chain to use to display position in TDs. To
display it, press the [MENU] key followed by
the soft keys GPS/DPGS/TD OPTIONS and
TD SETUP.
TD
SETUP
DGPS 3D
RETURN
LORAN C
GRI 9940 11-27
U.S. WEST COAST
CORRECTION1 +000.0 s
CORRECTION2 +000.0 s
DECCA
DEC CHAIN 20 R-P
FRENCH
CORRECTION1 +00.00 lane
CORRECTION2 +00.00 lane
s
EDIT
Figure10-10 TD setup menu
Displaying LORAN C TDs
1. Select GRI and press the soft key EDIT
to show the GRI & sta. pair window.
GRI & STA. PAIR
▲
9940 s 11-27
▼
U.S. WEST COAST
Figure 10-11 GRI & sta. pair window
2. Press ▲ or ▼ to select GRI code. Press
s to enable selection of station pair, and
then press ▲ or ▼ to select station pair.
See the Loran C chain list at the end of
this manual for GRI and station pairs.
3. Press the soft key ENTER or the [ENTER]
key to register your selection.
4. If necessary, you may enter a position off-
set to refine Loran C position. Select LO-
RAN C CORRECTION1 or
CORRECTION2 and press the soft key
EDIT. Enter correction value and press the
soft key ENTER or the [ENTER] key. Use
the soft key + <--> - to switch from plus to
minus and vice versa.