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7. OTHER FUNCTIONS
39
7.8 Position Display Format
Position may shown in latitude and longitude
or TDs (Loran C or Decca) as follows. Decca
and Loran C chain data is preprogrammed.
1. Press the [MENU] key once or twice to
open the menu.
2. Choose TD SETUP and then press the
[ENT] key.
TD SETUP
DISPLAY : XX.XXX'
LORAN C: 7980: 23-43
∆TD1 : +00 . 0
∆TD2 : +00 . 0
DECCA : 25: G-P
∆TD1 : +00 . 0
∆TD2 : +00 . 0
TD SETUP menu
3. The cursor is on the first line. Press the
[ENT] key.
XX.XXX'
XX'XX.X"
LC TD
DE TD
Position display options
4. Choose desired position format.
XX.XXX’: Shows L/L position with no
seconds.
XX’XX.X’: Displays L/L position with
seconds.
LC TD: Loran C TDs
DE TE: Decca TDs
5. Press the [ENT] key. If you selected a
latitude and longitude format, go to step 7.
6. For Loran C or Decca, do one of the
following and then go to step 7.
For Loran C TD:
a) The cursor is on LORAN C. Press the
[ENT] key.
b) Use the cursor pad to choose
appropriate GRI code and secondary
codes, referring to the Loran C chain
list on page AP-4.
c) Press the [ENT] key.
d) If necessary enter TD offsets at ∆TD1
and ∆TD2 to refine position accuracy.
For Decca TD:
a) Choose DECCA and then press the
[ENT] key.
b) Use the cursor pad to choose
appropriate Decca chain number and
lane pair (R, Red, G, Green, P, Purple),
referring to the Decca chain list on
page AP-5.
c) Press the [ENT] key.
d) If necessary enter TD offsets at ∆TD1
and ∆TD2 to refine position accuracy.
7. Press the [MENU] key twice to finish.
7.9 Time Difference (using
local time), Time Format
GPS uses UTC time. If you would rather use
local time, enter the time difference (range:
-13:30 to +13:30) between it and UTC time.
You may display the time in 12 or 24 hour
format.
1. Press the [MENU] key once or twice to
open the menu.
2. Choose SYS SETUP and then press the
[ENT] key.
3. Press ▼ to choose TIME DIFF and then
press the [ENT] key.
4. Press ▲ or ▼ to display “+” or “-“ as
appropriate.
5. Enter time difference with the cursor pad.
6. Press the [ENT] key.
7. The cursor is selecting TIME DISP. Press
the [ENT] key.
8. Choose 12 HOUR or 24 HOUR as
appropriate and then press the [ENT] key.
9. Press the [MENU] key twice to finish.