Attenuator Function; Lock Function - Icom IC-RX7 Instruction Manual

■ Attenuator function

The attenuator prevents distortion of a desired signal by
very strong signals near the desired frequency or when very
strong electric fields, such as from a broadcasting station, are
present at your location. The attenuation is about 15 dB de-
pending on the operating frequency.
➥ Push and hold [• ATT] for 1 sec. to turn the attenuator
function ON and OFF.
• "ATT" appears on the function display.
NO. MENU
DIAL
CLR ENT
SQL MW
HOLD V 1 2 3
.
4 5 6
SCAN
7 8 9
SEARCH
.
ATT
0
SKIP
ATT
Appears
OTHER FUNCTIONS

■ Lock function

To prevent accidental frequency changes and unnecessary
function access, use the lock function.
➥ Push and hold [MENU
function ON and OFF.
• " " appears while the lock function is activated.
• [ ] and [MENU ] can be used while the lock function is
activated.
• The squelch control and volume control can be used while the
lock function is activated with default setting. Either or both the
squelch control and volume control can also be locked in setting
menu.
MENU ➪ SETTING ➪ LOCK (p. 68)
MENU
NO. MENU
DIAL
CLR ENT
SQL MW
HOLD V 1 2 3
4 5 6
SCAN
7 8 9
SEARCH
.
0
ATT SKIP
9
] for 1 sec. to turn the lock
Appears
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
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19
75