Icom IC-7700 - Basic Transmit Operations

3-12
■ Basic transmit operation
3
BASIC OPERATIONS
D Microphone gain adjustment
Before transmitting, monitor your selected operating
frequency to make sure transmitting won’t cause in-
terference to other stations on the same frequency.
q Push [METER]
(MF2) to select the ALC meter.
w Push [PTT] (microphone) to transmit.
 •Talkintothemicrophoneatyournormalvoicelevel.
e While talking into the microphone, rotate [MIC] so
that the ALC meter reading doesn’t go outside the
ALC zone. (see at left)
r Release [PTT] (microphone) to return to receive.
[MIC]
METER
S
ID
0
5
10
15
0
0
10
44
ALC
52V
VD
20
dB
1
1.5
2
3
∞
10
50
100
150
200
250
PO
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
ID
VD
dB
W
A
Po
SWR
COMP
ALC
5
9
+
20
+
40
+
60dB
∞
ALC zone
ALC zone
[TX] indicator
[RF PWR]
TRANSMIT
Increases
max. 200 W
(50 W for AM)
Decreases
min. 5 W
D Transmitting
Before transmitting, monitor your selected operating
frequency to make sure transmitting won’t cause in-
terference to other stations on the same frequency.
q Push
TRANSMIT
or [PTT] (microphone) to transmit.
 •The[TX]indicatorlightsred.
w Push
TRANSMIT
again or release [PTT] (micro-
phone) to return to receive.
✔ Adjusting the transmit output power
➥ Rotate [RF PWR].
 •Adjustablerange :5Wto200W
(AM mode: 5 W to 50 W)
Before transmitting, monitor your selected
operating frequency to make sure transmitting
won’t cause interference to other stations on
the same frequency. It’s good amateur practice
to listen first, and then, even if nothing is heard,
ask “is the frequency in use” once or twice,
before you begin operating on that frequency.