Agc Function Control; D Selecting The Agc Time Constant Preset Value; D Setting The Agc Time Constant - Icom IC-7610 Basic Manual

4
RECEIVING AND TRANSMITTING

AGC function control

The AGC (Automatic Gain Control) controls receiver
gain to produce a constant audio output level, even
when the received signal strength varies greatly.
D Selecting the AGC time constant
preset value
The transceiver has FAST, MID and SLOW preset
AGC settings for all modes, except for the FM mode.
1. Select the operating mode.
(Example: SSB)
2. Touch [AGC] to sequentially select FAST, MID or
SLOW.
LFASTisfixedintheFMmode.

D Setting the AGC time constant

You can set the preset AGC time constant.
1. Select the operating mode.
(Example: SSB)
2. Touch [AGC] for 1 second.
• Opens the AGC screen.
3. Touch FAST, MID or SLOW.
4. Rotate
MAIN DIAL
L You can reset to the default settings by touching
[DEF] for 1 second.
5. To close the AGC screen, push
• Selectable AGC Time constant (unit: seconds)
Mode Default
0.3 （FAST）
LSB
2.0 （MID）
USB
6.0 （SLOW）
0.1 （FAST）
CW
0.5 （MID）
RTTY
PSK 1.2 （SLOW）
3.0 （FAST）
5.0 （MID）
AM
7.0 （SLOW）
0.1 （FAST）
FM
NOTE: When you are receiving weak signals, and a strong
signal is momentarily received, the AGC function quickly
reduces the receiver gain. When that signal disappears,
the transceiver may not receive the weak signal because
of the AGC action. In that case, select FAST, or touch
[AGC] for 1 second to open the AGC screen, and then
select OFF.
4-2
to set the time constant.
.
EXIT
Adjustable time constant
OFF, 0.1, 0.2, 0.3, 0.5, 0.8, 1.2,
1.6, 2.0, 2.5, 3.0, 4.0, 5.0 or 6.0
OFF, 0.1, 0.2, 0.3, 0.5, 0.8, 1.2,
1.6, 2.0, 2.5, 3.0, 4.0, 5.0 or 6.0
OFF, 0.3, 0.5, 0.8, 1.2, 1.6, 2.0,
2.5, 3.0, 4.0, 5.0, 6.0, 7.0 or 8.0
Fixed