ICOM ic-756proiii 取り扱いマニュアル
68
6
FUNCTION FOR TRANSMIT
6
■
Transmit filter width setting (SSB only)
The transmit filter width for SSB mode can be se-
lected from wide, middle and narrow.
lected from wide, middle and narrow.
➥ During USB or LSB mode selection, push
[COMP]
for 1 sec. several times to select the desired trans-
mit filter width from wide, middle and narrow.
mit filter width from wide, middle and narrow.
• The filter functions regardless of the speech compres-
sor use.
• The following filters are specified as the default. Each
of the filter width can be re-set in level set mode.
(pgs. 95, 96)
(pgs. 95, 96)
WIDE : 100 Hz to 2.9 kHz
MID
MID
: 300 Hz to 2.7 kHz
NAR
: 500 Hz to 2.5 kHz
[COMP]
■
Speech compressor
The speech compressor increases average RF out-
put power, improving signal strength and readability
in SSB mode.
put power, improving signal strength and readability
in SSB mode.
• Speech compressor
q Select USB or LSB mode.
w Push
w Push
[COMP]
momentarily to turn the speech
compressor ON and OFF.
e Push
[COMP]
for 1 sec. to select between narrow,
middle or wide transmit filter.
• Transmit filter width: (see above for details)
NAR
2.0 kHz
MID
2.4 kHz
WIDE
2.8 kHz
• Compression level setting
q Select USB or LSB mode.
w Preset the transceiver as follows:
w Preset the transceiver as follows:
‘COMP’ function :
OFF
‘METER’ function :
ALC
[MIC GAIN]
control
: Center position
[COMP]
control
: Center position
[RF POWER]
control : Max. counterclockwise
e Transmit at your normal voice level.
r Adjust the
r Adjust the
[MIC GAIN]
control so that the ALC
meter reads within the ALC zone, whether or not
you speak softly or loudly.
you speak softly or loudly.
t Push
[COMP]
momentarily to turn the speech
compressor ON.
y Push
[METER]
once to select the COMP meter.
u Adjust the
[COMP]
control so that the COMP
meter reads within 10 dB and 20 dB.
When the ALC meter peaks above the ALC zone,
your transmitted voice may be distorted.
your transmitted voice may be distorted.
[COMP] (switch)
[METER]
[RF POWER] [COMP] (control)
[MIC GAIN]
SWR
S
COMP
ALC
Po
0
10
10
25 50
100
20
1
0
1.5
2
3
1
5
9
+ 20
+ 40
+ 60dB
dB
COMP meter