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5
RECEIVE AND TRANSMIT
■ AGC function
The AGC (auto gain control) controls receiver gain to
produce a constant audio output level even when the
received signal strength is varied by fading, etc.
The transceiver has 3 AGC characteristics (time con-
stant; fast, mid, slow) for non-FM mode.
The FM mode AGC time constant is fixed as
‘FAST’ (0.1 sec.) and AGC time constant cannot be
selected.
•AGC time constant selection
q Select non-FM mode.
w Push [AGC] several times to select AGC fast, AGC
medium (MID) or AGC slow.
•Selectable AGC time constant (unit: sec.)
•Setting the AGC time constant
q Select the desired mode except FM mode.
w Push [AGC] for 1 sec. to enter AGC set mode.
e Push [AGC] several times to select FAST time
constant.
r Rotate the tuning dial to set the desired time con-
stant for ‘AGC FAST.’
•AGC time constant can be set between 0.1 to 8.0 sec.
(depends on mode) or turned OFF.
•Push [(F-3)DEF] to select a default value.
t Push [AGC] to select medium time constant.
y Rotate the tuning dial to set the desired time con-
stant for ‘AGC MID.’
•AGC time constant can be set between 0.1 to 8.0 sec.
(depends on mode) or turned OFF.
•Push [(F-3)DEF] to select a default value.
u Push [AGC] to select slow time constant.
i Rotate the tuning dial to set the desired time con-
stant for ‘AGC SLOW.’
•AGC time constant can be set between 0.1 to 8.0 sec.
(depends on mode) or turned OFF.
•Push [(F-3)DEF] to select a default value.
o Select another mode except FM. Repeat steps e
to i if desired.
!0 Push [EXIT/SET] to exit the AGC set mode screen.
DEFDEF
SFTSFT
0
FIL2FIL2
USBUSB
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TXTX
VFOVFO
USBUSB
USBUSB
USBUSB
FIL2FIL2
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14.100.0014.100.00
14.100.0014.100.00
1
1
VFOVFO
BWBW
2.4k2.4k
AGCAGC
(sec)(sec)
FMFM
AMAM
0.10.1
3.03.0
5.05.0
7.07.0
1.21.2
0.50.5
0.10.1
0.10.1
0.30.3
2.02.0
6.06.0
0.50.5
1.21.2
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SSBSSB
FASTFAST
SLOWSLOW
MIDMID
CWCW RTTYRTTY
ANTANT
1
COMPCOMP
OFFOFF
WIDEWIDE
METERMETER
PoPo
P.AMPP.AMP
1
AGCAGC
MIDMID
ATTATT
OFFOFF
VOXVOX
OFFOFF
Medium AGC time constant
Slow AGC time constant
Fast AGC time constant
AGC
MID
AGC
SLOW
AGC
FAST
Mode Default Selectable AGC time constant
0.3 (FAST)
OFF, 0.1, 0.2, 0.3, 0.5, 0.8, 1.2,
SSB 2.0 (MID)
1.6, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0
6.0 (SLOW)
0.1 (FAST)
OFF, 0.1, 0.2, 0.3, 0.5, 0.8, 1.2,
CW 0.5 (MID)
1.6, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0
1.2 (SLOW)
0.1 (FAST)
OFF, 0.1, 0.2, 0.3, 0.5, 0.8, 1.2,
RTTY 0.5 (MID)
1.6, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0
1.2 (SLOW)
3.0 (FAST)
OFF, 0.3, 0.5, 0.8, 1.2, 1.6, 2.0,
AM 5.0 (MID)
2.5, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0
7.0 (SLOW)
FM 0.1 (FAST) Fixed