Icom IC-7700 Instruction Manual - Page 51

Drive gain adjustment

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D Drive gain adjustment METER [DRIVE] Drive gain range 5 9 +20 +40 1 +60dB 5 10 S 0 ID Po 0 10 SWR 10 COMP 50 1.5102 ALC ∞ 100 150 3 20 200 15 250 W A dB 44 52V VD 3 BASIC OPERATIONS The drive gain is active for all modes other than SSB mode with speech compressor OFF. The [DRIVE] control adjusts the gain of the driver stage. Before transmitting, monitor your selected operating frequency to make sure transmitting won't cause interference to other stations on the same frequency. q Push [METER] (MF2) to select the ALC meter. w Push [PTT] (microphone; SSB with [COMP] ON, AM or FM), key down (CW) or push TRANSMIT (RTTY or PSK) to transmit. e While talking into the microphone, keying down or transmitting, rotate [DRIVE] so that the ALC meter reading is between 30 to 50% of the ALC scale. (see left) • Talk into the microphone at your normal voice level. r Release [PTT], stop keying or push TRANSMIT again to return to receive. 3-13

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3-13
D
Drive gain adjustment
The drive gain is active for all modes other than SSB
mode with speech compressor OFF. The [DRIVE] con-
trol adjusts the gain of the driver stage.
Before transmitting, monitor your selected operating
frequency to make sure transmitting won’t cause inter-
ference to other stations on the same frequency.
q
Push [METER]
(MF2)
to select the ALC meter.
w
Push [PTT] (microphone; SSB with [COMP] ON, AM
or FM), key down (CW) or push
(RTTY
or PSK) to transmit.
e
While talking into the microphone, keying down or
transmitting, rotate [DRIVE] so that the ALC meter
reading is between 30 to 50% of the ALC scale. (see
left)
• Talk into the microphone at your normal voice level.
r
Release [PTT], stop keying or push
again to return to receive.
TRANSMIT
TRANSMIT
3
BASIC OPERATIONS
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
∞
Drive gain range
[DRIVE]
METER