ICOM IC-703 Manuale Utente

Pagina di 112
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FUNCTION FOR TRANSMIT
The IC-703 has a built-in, low distortion speech com-
pressor circuit. This circuit increases your average
talk power in SSB mode and is especially useful for
DX’ing when the receiving station is having difficulty
copying your signal.
qSelect USB or LSB mode.
wSelect the mic gain display in quick set mode.
• Push [DISPLAY] for 1 sec.
• Push [MENU] one or more times to select “
Q2 MIC
GAIN.”
• The ALC meter is selected automatically when operat-
ing in SSB mode.
eAdjust the mic gain.
• While transmitting at your normal voice level, the ALC
meter should read at about the middle of the ALC zone.
• Be sure the mic gain is in the range of 2 to 5.
rSelect the ALC meter.
• Push [DISPLAY] once or twice to select 
M.
• Push [MENU] one or more times to select 
M3, then
push [
(F-3)
MET] one or more times to select “ALC.”
tPush [MENU] one or more times to select M4.
yPush [
(F-2)
COM] to turn the speech compressor
function ON.
• “COM” appears.
uPush [
(F-2)
COM] for 1 sec. to enter the compres-
sion level set mode (below).
iRotate the main dial to set the speech compression
level.
NOTE: When the ALC meter peaks above the ALC
zone, your transmitted voice may be distorted.
ALC
Adjust ‘COMP LEVEL’ so that the ALC meter
reads within the ALC zone.
ALC zone
[DISPLAY]
[MENU]
[MODE]
Main dail
[F-2]
[F-3]
R
LSB
CH
VFO A
P
O
S1
5
5
3
7
9
20
40
10
60dB
USB
CW
RTTY AM WFM
M4 VOX COM AGC
VOX
COM
Speech compressor
While
M4 is selected in SSB/AM modes, push 
[
(F-2)
COM] for 1 sec. to enter the compression level set
mode.
DCompression level set mode
C1 COMP LEVEL
This item adjusts the speech compression level. The
speech compression level can be adjusted from 0 to
10.
The default is 5.
USB
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