D Squelch; Dctcss/Dtcs; D Auto Power Off; D Backlight - Icom IC-41S Instruction Manual

4
SET MODE
D
Squelch
In order to receive signals clearly, the squelch level can be
adjusted to suit the operating environment. This eliminates
background noise when there are no signals present. A high-
er setting is better for inner city or noisy areas, and lower set-
ting is more benefi cial in quiet, rural and country areas. There
are 10 available squelch levels. (0=lowest setting, 9=highest
setting)
Squelch level 2 (default)
D CTCSS/DTCS
Select the desired CTCSS tone frequency or DTCS code.
Pushing toggles the CTCSS/DTCS setting mode.
CTCSS/DTCS is explained further in page 21.
CTCSS tone frequency
setting mode (default)
12
Squelch level 0 (" "appears)
Push
DTCS code setting mode
D
Auto Power OFF
The transceiver can be set to automatically turn off after a set
period of inactivity (i.e. no key has been pushed). This can be
set anywhere from 0.5 to 4.0 hours, in 0.5 hour steps.
Auto power OFF
is OFF (default)

D Backlight

The transceiver features a backlit LCD display for low-light operation.
• ON : Backlight is on continuously.
• A2 (Auto2) : Lights for 5 seconds when LCD indication is
changed or any key except [PTT] is pushed.
• AT (Auto) : Lights for 5 seconds when a selcall signal is
transmitted/received or any key except [PTT]
is pushed.
• OF (OFF) : No backlight available.
Backlight Auto (default)
2.0 hours setting
Backlight ON