I Lock Function; I Adjusting The Squelch Level - Icom IC-M21 Instruction Manual

3
BASIC OPERATION

I Lock function

This function electronically locks all keys, except [PTT],
[SQL• ] and [H/L•
MONI
changes and function access.
• Push [H/L• ] for 1 sec. to turn the lock function ON and
LOCK
OFF.
- Only [PTT], [H/L•
LOCK
7
] to prevent accidental channel
LOCK
] and [SQL• ] are functional.
MONI
Appears while the
lock function is used.

I Adjusting the squelch level

The IC-M21 has a squelch even though there is no control
knob for it. In order to receive signals properly, as well as for
scan to function, the squelch must be adjusted to a suitable
level.
Appears durling squelch
level adjustment.
Each dot indicates the squelch level
(Level 10: Max. squelch level)
q Push [SQL•
], then adjust the squelch level with [Y]/[Z].
MONI
- "SQL" indicator and squelch level indicator appear.
- There are 11 squelch levels to choose from: 0 is completely
open; 10 is the maximum squelch level.
- When no keys are pushed for 5 sec., the transceiver returns to
normal condition.
w Push [SQL•
] again to return to normal condition.
MONI