18
3
BASIC OPERATION
■
Monitor function
This function is used to listen to weak signal or to open the
tone squelch manually.
➥
Push
MONI
T SQL
(Monitor)
to toggle the monitor function ON and
OFF.
•
“
” blinks when the monitor function is in use.
■
Lock function
This function electronically locks all keys except for
[PTT]
,
MONI
T SQL
(Monitor)
,
F
SET
(Function)
,
SCAN
TAG
(Call),
(Loud),
(Small)
and
LOW
(Lock)
to prevent accidental channel changes and
function access.
➥
Push and hold
LOW
(Lock)
for 2 sec. to toggle the lock
function ON and OFF.
•
“
” appears when the lock function is in use.
■
Adjusting the squelch level
In order to receive signals properly, the squelch must be ad-
justed to the proper level.
q
Push and hold
CH
SQL
(SQL) for 2 sec. to enter the squelch
level setting mode.
➥
Push
F
SET
, then push and hold
CH
SQL
(SQL) also available
to enter the squelch level setting mode.
w
Push
or
to adjust the squelch level within 0 to 9
ranges.
e
Push
CH
SQL
(SQL)
to exit the squelch level setting mode.
Blinks
Blinks
Appears
The squelch level
is indicated.
IC-440-1.indd 18
IC-440-1.indd 18
2008/06/25 15:59:35
2008/06/25 15:59:35