6-5
■
Transmit filter width setting
(SSB only)
The transmit filter width for SSB mode can be se-
lected from wide, middle and narrow.
➥
During USB or LSB mode selection, hold down
[COMP]
(MF6)
for 1 second several times to select
the desired transmit filter width from wide, middle
and narrow.
• The filter can be independently set on the speech com
-
pressor function is ON or OFF.
• The following filters are specified as the default. Each of
the filter width can be re-set in level set mode. (p. 12-6)
WIDE : 100 Hz to 2.9 kHz
MID
: 300 Hz to 2.7 kHz
NAR
: 500 Hz to 2.5 kHz
■
Speech compressor
(SSB only)
The speech compressor increases average RF output
power in SSB mode only, improving signal strength
and readability.
q
Select USB or LSB mode and adjust [MIC] to a
suitable level.
• Push [METER]
(MF2)
several times to select the ALC
meter for microphone gain adjustment.
w
Push [COMP]
(MF6)
to turn the speech compressor
ON.
e
Push [METER]
(MF2)
once to select the COMP
meter.
r
While speaking into the microphone, rotate [COMP]
control, so that the COMP meter reads within the
COMP zone (10 to 20 dB range) for your normal
voice level.
When the COMP meter peaks exceed 20 dB,
your transmitted voice may be distorted.
t
Push [METER]
(MF2)
5 times to select the ALC
meter.
y
While speaking into the microphone, rotate
[DRIVE], so that the ALC meter reads within the
30 to 50% range of the ALC zone with your normal
voice level.
✔
For your convenience
Hold down [METER]
(MF2)
for 1 second to display
the multi-function meter that can check the ALC and
COMP level at a glance.
S
I
D
0
5
10
15
0
0
10
44
ALC
52V
V
D
20
dB
1
1.5 2
3
∞
10
50
100 150 200
250
P
O
SWR
COMP
A
W
1
5
9
+
20
+
40
+
60dB
S
1
0
0
0
1
2
5
10
10
10
20
44 52V
50
100 150 200
250
15
3
1.5
I
D
V
D
dB
W
A
Po
SWR
COMP
ALC
5
9
+
20
+
40
+
60dB
∞
S
1
0
0
0
1
2
5
10
10
10
20
44 52V
50
100 150 200
250
15
3
1.5
I
D
V
D
dB
W
A
Po
SWR
COMP
ALC
5
9
+
20
+
40
+
60dB
∞
COMP zone
[MIC]
[DRIVE] [COMP] control
P.AMP
COMP
METER
COMP
6
FUNCTIONS FOR TRANSMIT
