ICOM ic-756pro 取り扱いマニュアル
36
5
RECEIVE AND TRANSMIT
■
Meter function
The transceiver has 4 transmit meter functions for
your convenience. Select the desired meter with the
[METER] switch.
your convenience. Select the desired meter with the
[METER] switch.
• Analog transmit meter
➥
Push [METER] to select RF power (Po), SWR, ALC
or compression level (COMP) for transmit metering.
or compression level (COMP) for transmit metering.
In addition, the transceiver can display the multi-func-
tion digital meter in the LCD display, which displays
all transmit meters simultaneously.
tion digital meter in the LCD display, which displays
all transmit meters simultaneously.
• Multi-function digital meter
q
Push [METER] for 2 sec. to turn the multi-function
digital meter ON or OFF.
digital meter ON or OFF.
w
Push [(F-1)P-HOLD] to toggle the peak level hold
function ON or OFF.
function ON or OFF.
• “P-HOLD” appears on the window title when the peak
level hold function is turned ON.
ANT
ANT
1
METER
METER
Po
Po
P.AMP
P.AMP
1
ATT
ATT
OFF
OFF
OFF
VOX
VOX
OFF
OFF
OFF
COMP
COMP
OFF
OFF
WIDE
WIDE
P-HOLD
P-HOLD
BW
BW
2.4k
2.4k
SFT
SFT
0
FIL2
FIL2
U S B
U S B
qw:pp
AGC
AGC
MID
MID
MID
TX
TX
VFO
VFO
USB
USB
USB
USB
USB
USB
FIL2
FIL2
qr≥qot≥pp
qr≥wpt≥pp
14.100.00
14.100.00
14.100.00
14.100.00
1
1
VFO
VFO
. 1 . . . 3 . . . 5 . . . 7 . . . 9 .
. 1 . . . 3 . . . 5 . . . 7 . . . 9 . ..
..+20
+20...
...+40
+40...
...+60dB
+60dB
0∑∑∑∑∑∑∑∑∑∑∑
∑∑∑∑∑∑∑∑∑∑∑25
25∑∑∑∑∑∑∑∑∑
∑∑∑∑∑∑∑∑∑∑50 ∑∑∑∑∑∑∑∑∑∑∑∑∑∑∑∑∑∑∑
∑∑∑∑∑∑∑∑∑∑∑∑∑∑∑∑∑∑∑ 100%
100%
1
1.5
1.5
2
2.5
2.5
3
S
P o
P o
A L C
A L C
C O M P
C O M P
S W R
S W R
P-HOLD
P-HOLD
MULTI-FUNCTION METER
MULTI-FUNCTION METER
DISPLAY
INDICATION
MEASUREMENT
SWR
Indicates the SWR over the transmission
line.
line.
Po
Indicates the relative RF output power in
%.
%.
ALC
Indicates the ALC level. When the meter
movement shows the input signal level
exceeds the allowable level, the ALC
limits the RF power. In such cases,
reduce the [MIC GAIN] control.
movement shows the input signal level
exceeds the allowable level, the ALC
limits the RF power. In such cases,
reduce the [MIC GAIN] control.
COMP
Indicates the compression level when
the speech compressor is in use.
the speech compressor is in use.
[METER] switch
■
SWR reading
The SWR meter indicates the SWR over the trans-
mission line in all modes.
mission line in all modes.
q
Push [TUNER] to turn the antenna tuner OFF.
w
Push [METER] one or more times to select the Po
meter.
meter.
e
Push [CW/RTTY] once or twice to select RTTY
mode.
mode.
r
Push [TRANSMIT].
t
Rotate [RF POWER] clockwise past the 12 o’clock
position for more than 30 W output power (30%).
position for more than 30 W output power (30%).
y
Push [METER] once to select the SWR meter as
the transmit meter.
the transmit meter.
u
Read the SWR on the SWR meter.
The built-in antenna tuner matches the transmitter
to the antenna when the SWR is lower than 3 : 1.
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
SWR meter
Less than 1.5:1