Operation Manual

■ Meter indication selection
The S/RF meter indication, during transmit, can be se-
lected from the following items as you desire.
➥ Push [METER] several times to select the desired
item.
Indicates the RF output power in watts.
Indicates the VSWR on the transmission
line.
Indicates the ALC level. The ALC circuit
begins to activate when the RF output
power reaches a preset level.
Indicates the compression level when
the speech compressor is in use.
Indicates the drain current of the final
amplifier MOS-FETs.
Indicates the drain terminal voltage of
the final amplifier MOS-FETs.
DD
Multi-function digital meter
The IC-7800 can display the multi-function digital
meter in the LCD display. This meter displays all trans-
mit parameters simultaneously.
q Push [METER] for 1 sec. to turn the multi-function
digital meter ON.
w Push [F-1•P-HOLD] to toggle the peak level hold
function ON.
•“P-HOLD” appears on the window title when the peak
level hold function is ON.
e Push [METER] for 1 sec., or push [EXIT/SET] to
turn the multi-function digital meter OFF.
“P-HOLD” indicator
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
Signal strength
level readout
I
D readout
Power level readout
VSWR readout
Compression level
readout
ALC level readout V
D readout
[METER]
3-10
3
BASIC OPERATIONS