Icom IC-821H Instruction Manual page 48

45
11 SET MODE
© Set mode with [CHECK] (continued) ~
(4) Squeich threshold level "SqL nob"
The SSB threshold point can be set to the 9 or 12
o'clock position.
When setting to the 12 o'clock position, the signal
strength to open the squelch is nearly equal for FM
and SSB/CW modes.
© Set mode with [TONE]
(1) Subaudible tone frequency T"
(U.S.A. and Australia versions only)
To set the subaudible tone frequency, select FM
mode with subaudible tone ON in advance.
- There are 50 tones available from 67.0 Hz to 254.1 Hz.
(see the table on p. 31)
(2) Optional tone squelch frequency
"T-SQL" (UT-84 is required)
To set the tone squelch frequency, select FM mode
with tone squelch ON in advance.
- There are 50 tones available from 67.0 Hz to 254.1 Hz.
(see the table on p. 24)
© Set mode with [FUNC]
(1) Display intensity "diSP"
The display backlight can be set to one of 2 intensity
levels. Choose a level suitable for your operating
environment or personal preference.
(2) Confirmation beep "bEEP"
A beep sounds each time a switch is pushed for
confirmation. This confirmation beep can be turned
OFF for silent operation.
Beep tone volume can be adjusted. (p. 53)
(3) Time out-timer "tot"
To prevent extended continuous transmission with
the crossband full duplex operation, etc., the trans-
ceiver has a time-out timer. This timer selects
receive 3, 5, 10, 20 or 30 min. after transmission
starts. This timer can be cancelled.
When the time-out time elapses, the transceiver
stops transmitting with beep tones.
Di
-l
9 o'clock position (default)
12 o'clock position
88.5 Hz subaudible tone frequency (default)
Farfara Y33500
88.5 Hz tone squelch frequency (default)
Low intensity
Confirmation beep ON (default)
Time-out timer OFF (default)
30 min. time-out timer is selected.