5
GPS/GPS-A OPERATION
5-2
To receive signals from an external GPS source, con-
nect an external NMEA format compatible receiver
to the ID-31A/E according to the instructions, shown
below. The cable is not an Icom product and must be
made separately. Refer to the wiring diagram for pin
connections.
• Position data can be transmitted in only the DV mode.
Extending battery life while traveling in the GPS mode
When traveling in the Internal GPS receiver mode, the bat-
tery in the ID-31A/E can quickly be exhausted. Longer battery
time can be achieved by setting the GPS option to Manual,
and then occasionally capture your position to update your
data.
Open the Menu screen and select the “GPS” item,
q
then push D-pad(Ent) to enter the next menu.
Select the “GPS Set” item and push D-pad(Ent),
w
then select the “Manual Position” item, and then
push D-pad(Ent).
• Your last received or entered position is displayed.
Push
e
, then select the “Capture From GPS”
option, and then push D-pad(Ent).
• Your current position is now memorized and displayed
on the MANUAL POSITION screen.
Push
r
to save the setting and return to the
operating screen.
• After that, set to
“
Manual
”
in the
“
GPS Select
”
item.
[
MANUAL POSITION]
menu is displayed
Select
[Capture From GPS]
• Connection
To the
[DATA] jack
Cable
To the
RS-232C
Port
RS-232C (DB-9 female)
To the [DATA] jack
TxD GND
RxD
Less than ø 6.0 mm
ø 2.5 mm
t
o
y
e
w
q
GPS
Receiver
Connect
w
with RxD,
e
with TxD and
t
with GND.
NOTE:
While continuously using the Internal GPS mode,
the battery in the ID-31A/E can quickly become exhaust-
ed. Longer battery time can be achieved by turning ON
the Power Save mode.
(MENU > GPS > GPS Set >
Power Save (Internal GPS)
)
See page 10-22 for details.
GPS icon blinks
( stops
when
valid data is re-
ceived)
GPS SELECT
screen
■
GPS operation
The ID-31A/E has a built-in internal GPS receiver. The
GPS receiver Position information can be received in any
modes. Also, a NMEA format compatible external GPS
receiver can be connected to the ID-31A/E through the
[DATA] port.
D
Receiving GPS data
Push [MENU]
q
.
Push D-pad(
w
) to select the root item (GPS), and
then push D-pad(Ent) to go to the next screen.
D-pad
(
�
)
(Ent)
(MENU > GPS > GPS Set>
GPS Select
)
Refer to the menu sequence shown directly above
e
and push D-pad(
) to select, and then D-pad(Ent)
to enter, one or more times until the last screen is
displayed.
Push D-pad(
r
) to select “Internal GPS.”
• If an external GPS receiver is connected, select “Exter
-
nal GPS.”
Push [MENU]
t
to exit the Menu screen.
•
The GPS icon blinks when receiving data, as illustrated be-
low, and stops blinking when valid data has been received.
If “Manual” was selected, the icon does not appear.
"
"
"
• It may take a longer or shorter time to receive, depend
-
ing on the environment. If you have difficulties receiving,
we recommend that you try a different location.
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