Icom IC-756PRO - Speech Compressor

37
5
RECEIVE AND TRANSMIT
■ Speech compressor
The RF speech compressor increases average RF
output power, improving signal strength and readabil-
ity in SSB.
•Speech compressor
q Select USB or LSB mode.
w Push [COMP] momentarily to turn the speech
compressor ON and OFF.
e Push [COMP] for 2 sec. to toggle between narrow,
middle or wide transmit filter.
•Transmit filter width:
NAR 2.0 kHz
MID 2.6 kHz
WIDE 2.9 kHz
•Compression level setting
q Select USB or LSB mode.
w Preset the transceiver as follows:
[COMP] function : OFF
[METER] function : ALC
[MIC GAIN] control : Center position
[COMP] control : Center position
[RF POWER] control : Max. counterclockwise
e Transmit at your normal voice level.
r Adjust the [MIC GAIN] control so that the ALC
meter reads within the ALC zone, whether or not
you speak softly or loudly.
t Push [COMP] momentarily to turn the speech
compressor ON.
y Push [METER] once to select the COMP meter.
u Adjust the [COMP] control so that the COMP
meter reads within 10 dB and 20 dB.
When the ALC meter peaks above the ALC zone,
your transmitted voice may be distorted.
[METER] switch
[COMP] switch[MIC GAIN] control
[COMP] control[RF POWER] control
SWR
S
COMP
ALC
Po
0
10
10
25 50
100
20
1
0
1. 5
2
3
1
5
9
+20
+40
+60dB
dB
COMP meter