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11-7
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 DGPS mode is
“manual”; baud rate cannot be changed in
automatic DGPS mode.
DGPS ALARM
Enables/disables the DGPS alarm. When
enabled, 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
Figure 11-11 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 11-12 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.
Displaying DECCA TDs
1. Select DEC CHAIN and press the soft key
EDIT to show the chain sta. pair window.
CHAIN STA. PAIR
▲
20 s P-R
▼
FRENCH
Figure 11-13 Chain sta. pair window
2. Press ▲ or ▼ to select Decca chain num-
ber. Press s to enable selection of lane,
and then press ▲ or ▼ to select lane pair
(R: red, G: green and P: purple). Refer to
the Decca chain list at the end of this
manual.
3. Press the soft key ENTER or the [ENTER]
key to register your selection.