Icom IC-718 - Manual (Page 29)

27
5
RECEIVE AND TRANSMIT
IC-718 has a built-in, low distortion Mic compressor
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.
q Selecting USB or LSB mode.
w Select the mic gain display in quick set mode.
• Push [SET] for 1 sec. to select quick set mode.
• Push [∫ UP]/[√ DN] one or more times to select “MIC
GAIN”.
e Adjust the mic gain by rotating the main [DIAL].
• 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 20 to 50.
r Push [SET] to exit the quick set mode.
t Push [COMP] to turn mic compressor ON.
y Push [SET] one or more times to select the ALC
meter.
u While speaking into the microphone at a normal
voice level, confirm the ALC level so that the ALC
meter peak does not past the ALC zone.
• If the ALC meter peak past the ALC zone, re-adjust
the mic. gain.
Note: When the ALC meter peaks above the ALC
zone, your transmited voice may be distorted.
Y Y
[COMP] switch
ï Microphone compressor
Adjust [MIC GAIN] so that the ALC
meter reads within the ALC zone.
ALC zone
The VOX (Voice-operated Transmission) function
toggles between transmit and receive with your
voice. This function provides an opportunity to input
log entries into your computer, etc. while operating.
q Push [VOX] to turn the function ON.
w Select “VOX Gain” in quick set mode.
• Push [SET] for 1 sec. to select quick set mode.
• Push [∫ UP]/[√ DN] one or more times to select
“VOX GAIN”
e While speaking into the microphone, adjust [VOX
GAIN] until the transceiver is transmitting.
r Select “VOX Delay” in quick set mode.
• Push [∫ UP]/[√ DN] one or more times to select
“VOX Delay”
t While speaking into the microphone, adjust [VOX
DELAY] as desired.
y Select “ANTI-VOX” in quick set mode.
• Push [∫ UP]/[√ DN] one or more times to select “AN
VOX”
u If the receive audio from the speaker toggles the
transceiver to transmit during receive, adjust the
“ANTI-VOX” to the point where it has no effect.
i Push [SET] to exit the quick set mode.
ï VOX operation
Y Y
[VOX] switch