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FUNCTIONS FOR RECEIVE
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■ 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 pre-set AGC time constants: fast,
midandslowforSSB,CW,RTTYandAMmodes.
In the FM and DV modes, the AGC time constant is
fixed as “FAST” (0.1 second).
D AGC speed selection
qSelecteithertheSSB,CW,RTTYorAMmode.
(p. 43)
w
Push [MENU] to display the “M1” screen (Menu 1),
then push [AGC](F-1) one or more times to select
AGC fast ( ), AGC mid ( ) or AGC slow ( ).
“AGC OFF” appears when the selected AGC
speed’s time constant is set to OFF.
D Setting the AGC time constant
qSelecteithertheSSB,CW,RTTYorAMmode.
(p. 43)
w Push [MENU] to display the “M1” screen (Menu 1),
then hold down [AGC](F-1) for 1 second to display
the “AGC” screen.
e Push either [FAST](F-2), [MID](F-3) or [SLOW](F-4)
to select the desired AGC speed to be set.
•
An underline appears below the time constant display.
r Rotate [MAIN DIAL] to set the desired time con-
stant.
•AGCtimeconstantcanbesettobetween0.1to8.0
seconds (depending on the mode) or turned OFF.
•Holddown[FAST](F-2), [MID](F-3) or [SLOW](F-4) for
1 second to reset to the default setting for the selected
time constant, if desired.
t Select another mode (except for FM and DV), then
repeat steps e and r, if desired.
y Push [MENU] to save, and exit the “AGC” screen.
• Selectable AGC time constant (unit: seconds)
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/RTTY
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/DV 0.1 (FAST) Fixed
Appears under the selected AGC
speed’s time constant display.
Selected mode
DUPAGC COMP TBW SCP
M1
0.3s 2.0s 6.0s
FAST MID SLOW SSB
AGC
• When AGC fast is selected
0.3s 2.0s 6.0s
FAST MID SLOW SSB
AGC
• When AGC slow is selected
0.3s 2.0s 6.0s
FAST MID SLOW SSB
AGC
• When AGC medium is selected
Hold down
For your information
When you are receiving a weak signal, and a strong
signal is momentarily received, the AGC function
quickly reduces the receiver gain. When that sig-
nal disappears, the transceiver may not receive
the weak signal because of the AGC action. In that
case, hold down [AGC](F-1) for 1 second, and ro-
tate [MAIN DIAL] to set the time constant to OFF.
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