■
AGC function
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 fixed as ‘FAST’
(0.1 seconds) and AGC time constant cannot be
changed.
D
Selecting the preset value
q
Select any non-FM mode.
w
Push [AGC]
(MF5)
several times to select AGC fast,
AGC medium (MID) or AGC slow.
• Hold down
AGC VR
for 1 second to turn the AGC
function OFF.
D
Adjusting the AGC time constant
q
Select any non-FM mode.
w
Push
AGC VR
, then rotate [AGC] control to adjust
the AGC time constant.
• [AGC VR] indicator above the switch lights green.
D
Setting the AGC time constant preset value
q
Select any non-FM mode.
w
Hold down [AGC]
(MF5)
for 1 second to enter AGC
set mode.
e
Push [AGC]
(MF5)
several times to select FAST
time constant.
r
Rotate the main dial to set the desired time con-
stant for ‘AGC FAST.’
• AGC time constant can be set between 0.1 to 8.0 sec
-
onds (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 con-
stant for ‘AGC MID.’
• AGC time constant can be set between 0.1 to 8.0 sec
-
onds (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 con-
stant for ‘AGC SLOW.’
• AGC time constant can be set between 0.1 to 8.0 sec
-
onds (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. Repeat steps
e
to
i
if desired.
!0
Push
EXIT/SET
to exit the AGC set mode screen.
[AGC] control
AGC VR
AGC
5-12
5
FUNCTIONS FOR RECEIVE
Mode
Default
Selectable AGC time constant
0.3 (FAST)
0.1, 0.2, 0.3, 0.5, 0.8, 1.2, 1.6, 2.0,
SSB 2.0 (MID)
2.5, 3.0, 4.0, 5.0, 6.0
6.0 (SLOW)
0.1 (FAST)
0.1, 0.2, 0.3, 0.5, 0.8, 1.2, 1.6, 2.0,
CW 0.5 (MID)
2.5, 3.0, 4.0, 5.0, 6.0
1.2 (SLOW)
RTTY
0.1 (FAST)
0.1, 0.2, 0.3, 0.5, 0.8, 1.2, 1.6, 2.0,
PSK
0.5 (MID)
2.5, 3.0, 4.0, 5.0, 6.0
1.2 (SLOW)
3.0 (FAST)
0.3, 0.5, 0.8, 1.2, 1.6, 2.0, 2.5, 3.0,
AM
5.0 (MID)
4.0, 5.0, 6.0, 7.0, 8.0
7.0 (SLOW)
FM
0.1 (FAST) Fixed
• Selectable AGC time constant
(unit: sec.)
