Icom IC-7600

82
4
RECEIVE AND TRANSMIT
4
■ AGC function
F-4
EXIT/SET
Main dial
DEF
[AGC]
q Select any non-FM mode.
w Hold down [AGC] (MF5) for 1 second to select the
AGC set mode.
e Push [AGC] (MF5) several times to select FAST
time constant.
r Rotate the main dial to set the desired time
constant for ‘AGC FAST.’
• AGC time constant can be set between 0.1 to 8.0
seconds (depends on mode) or turned OFF.
• Hold down [DEF] (F-4) for 1 second to select a default
value.
t Push [AGC] (MF5) to select medium time constant.
y Rotate the main dial to set the desired time
constant for ‘AGC MID.’
• AGC time constant can be set between 0.1 to 8.0
seconds (depends on mode) or turned OFF.
• Hold down [DEF] (F-4) for 1 second to select a default
value.
u Push [AGC] (MF5) to select slow time constant.
i Rotate the main dial to set the desired time
constant for ‘AGC SLOW.’
• AGC time constant can be set between 0.1 to 8.0
seconds (depends on mode) or turned OFF.
• Hold down [DEF] (F-4) for 1 second to select a default
value.
o Select another non-FM mode, then repeat steps e
to i if desired.
!0 Push [EXIT/SET] to exit the AGC set mode screen.
D Setting the AGC time constant preset value
The AGC (auto gain control) controls receiver gain to
produce a constant audio output level even when the
received signal strength varies greatly.
The transceiver has 3 preset AGC characteristics
(time constant: fast, mid, slow) for non-FM modes.
The FM mode AGC time constant is xed as ‘FAST’
(0.1 seconds) and AGC time constant cannot be
changed.
Selecting the preset value D
q Select any non-FM mode.
w Push [AGC] (MF5) several times to select AGC
fast, AGC medium (MID) or AGC slow.
• AGC set mode screen
• Selectable AGC time constant (unit: second)
Mode Default Selectable AGC time constant
SSB
0.3 (FAST)
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, 6.0
2.0 (MID)
6.0 (SLOW)
CW
0.1 (FAST)
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, 6.0
0.5 (MID)
1.2 (SLOW)
RTTY
PSK
0.1 (FAST)
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, 6.0
0.5 (MID)
1.2 (SLOW)
AM
3.0 (FAST)
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, 8.0
5.0 (MID)
7.0 (SLOW)
FM 0.1 (FAST) Fixed