Instruction manual

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.
▲
▲
[COMP] switch
ï Microphone compressor
ALC zone
Adjust [MIC GAIN] so that the
ALC meter reads within the ALC
zone.
The VOX (Voice-operated Transmission) function tog-
gles between transmit and receive with your voice.
This function provides an opportunity to input log en-
tries 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
▲
▲
[VOX] switch
IC-718.qxd 02.9.6 14:29 Page 27