Icom IC-7850 Instruction Manual - Page 72

Basic transmit operation, Transmitting, Adjusting the microphone gain

Page 72 highlights

Previous view 4 BASIC OPERATION Before transmitting, monitor your selected operating frequency to make sure you don'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 being operating. ■■Basic transmit operation DDTransmitting q P ush [TRANSMIT] or [PTT] (microphone) to transmit. • The main band's [TX] indicator lights red. • When split operation is selected, the Sub band's [TX] indicator lights. w P ush [TRANSMIT] again or release [PTT] (microphone) to receive. ✔ Adjusting the transmit output power ➥ Rotate [RF PWR]. • Adjustable range: L ess than 5 W to 200 W (AM mode: Less than 5 W to 50 W) [TRANSMIT] [RF PWR] TX indicator (MAIN) TX power readout (approx.) "

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4-13
4
BASIC OPERATION
Basic transmit operation
D
Transmitting
q
Push [TRANSMIT] or [PTT] (microphone) to trans-
mit.
• The main band’s [TX] indicator lights red.
• When split operation is selected, the Sub band’s [TX]
indicator lights.
w
Push [TRANSMIT] again or release [PTT] (micro-
phone) to receive.
Adjusting the transmit output power
Rotate [RF PWR].
• Adjustable range: Less than 5 W to 200 W
(AM mode: Less than 5 W to 50 W)
D
Adjusting the microphone gain
q
Push the Multi-function [METER](
) key to select
the ALC meter.
w
Push [PTT] to transmit.
• Talk into the microphone at your normal voice level.
e
While talking, rotate [MIC] so that the ALC meter
reading doesn’t go outside the ALC zone (see to
the right).
r
Release [PTT] to receive.
Before transmitting, monitor your selected operating frequency to make sure you don’t cause interfer-
ence 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 being operating.
[TRANSMIT]
[RF PWR]
TX indicator (MAIN)
“<5W” is displayed when the power is set less than 5 W.
TX power readout (approx.)
[TRANSMIT]
[MIC]
TX indicator (MAIN)
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
ALC zone