Icom ID-31A

10
MENU SCREEN OPERATION
10-22
■ GPS items
GPS Select (Default: OFF)
GPS > GPS Set > GPS Select(GPS SELECT)
Select either an internal or external GPS receiver that the transceiver re-
ceives its position data from.
• OFF : A GPS receiver is not used.
• Internal GPS : Position data from the internal GPS data is used for the
GPS functions.
• External GPS : Position data from the external GPS data is used for the
GPS functions.
• Manual : Manually enter the current Latitude, Longitude and Alti-
tude in Manual Position.
Slow-speed data communication is disabled when “External GPS” is selected.
(p. 4-12)
Power Save (Internal GPS) (Default: Auto)
GPS > GPS Set > Power Save (Internal GPS)(POWER SAVE (INT GPS))
Select whether or not to use the internal GPS receiver power save func-
tion.
The power save function disconnects power to the GPS receiver to con-
serve battery power.
When this function is ON, and if the GPS receiver cannot receive signal
from a satellite for 5 minutes, the power save function will turn OFF the
GPS receiver for this set period of time.
• OFF : The receiver is continuously ON.
• 1, 2, 4, 8 min : When the receiver cannot receive any signal from a satel-
lite for 5 minutes, the GPS receiver power is turned OFF
for the selected periods (1, 2, 4 or 8 minutes). After this
period, the receiver resumes receiving.
• Auto : When the receiver cannot receive any signal from a satel-
lite for 5 minutes, the GPS receiver power is turned OFF
for 1 minute. After this period, the receiver resumes re-
ceiving.
The power save interval time extends to 2, 4 and then 8
minutes when receiving no signal for another 5 minutes,
respectively.
Once the GPS receiver receives initial position data, the
power save interval is set back to 1 minute, if it receives
no signal for 5 minutes.
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