Transmit Power Limit - Icom IC-7851 Instruction Manual

4
BASIC OPERATION
■
Basic transmit operation (Continued)
D Adjusting the drive gain
The drive gain is active for all modes except SSB with-
out speech compressor. The [DRIVE] control adjusts
the amplifying gain at the driver stage.
q Push the Multi-function [METER]() key 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 speaking into the microphone, keying down or
transmitting, rotate [DRIVE] so that the ALC meter
reading swings within 30 to 50% of the ALC scale.
(see to the right)
• Speak into the microphone at your normal voice level.
r Release [PTT], stop keying or push [TRANSMIT]
again to receive.
D Transmit power limit
The transceiver can be set to a maximum output power
on each operating band.
You can separately set the maximum output power for
operating in the DATA mode
 The Multi-function screens are OFF:
q
Select the "TX Power Limit" item in the Others set
screen.
SET [F-7]  OTHERS [F-5]  TX Power Limit
w
Rotate [MAIN DIAL] to select "ON."
• When ON is selected, the TX power limit is active.
e
Push [LIMIT](F).
• The
TX power limit screen
r
Push the band key.
• Select the desired band to set the TX power limit.
• In the Phone mode (SSB, AM, or FM mode), push [DATA]
to select the Data mode.
t
Rotate [MAIN DIAL] to set the maximum power.
y
Push [EXIT/SET] several times.
• Exits the Set screen.
is displayed.
[DRIVE]
Drive gain range
1
S
0
I
D
Po
SWR
COMP
(F) Function keys
TX power limit screen
4-14
9 +
20
5
+
40
+
60dB
5
10
50 100 150
15
200
10 A
0
250
2
3
W
1.5
20
10
1
0
dB
ALC 44 52V
V
D
Band key
[EXIT/SET] [MAIN DIAL]
[LIMIT] key is displayed
When ON is selected