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u MICROPHONE CONNECTOR [MIC]
Accepts an optional microphone.
•Seepage15-4forappropriatemicrophones.
•Seepage2-10formicrophoneconnectorinformation.
i MIC GAIN CONTROL [MIC] (p. 3-12)
Adjusts microphone input gain.
•ThetransmitaudiotoneintheSSB,AMandFMmodes
can be adjusted independently in set mode. (p. 12-5)
How to set the microphone gain.
Set the [MIC] control so that the ALC meter occasionally
moves up-scale during normal voice transmission, in the
SSB, AM or FM mode.
o VOX SWITCH VOX
PushtoturntheVOXfunctionONorOFFdur-
ing SSB, AM and FM mode operation. (p. 6-2)
Holddownfor1secondtoenterVOXsetmode.
(p. 6-2)
What is the VOX function?
TheVOXfunction(voiceoperatedtransmission)acti-
vates transmission without pushing the transmit switch
or PTT switch when you speak into the microphone; then
automatically returns to receive when you stop speaking.
!0 RF POWER CONTROL [RF PWR] (p. 3-12)
Continuously varies the RF output power from a
minimumof5W*toamaximumof 200 W*.
*AM mode: 5 W to 50 W
!1 BREAK-IN SWITCH BK-IN
Push to turn the break-in function ON (semi-break-
in, full-break-in) or OFF during CW mode operation.
(p. 6-3)
What is the break-in function?
The break-in function switches transmit and receive with
CW keying. Full break-in (QSK) can monitor the receive
signal between CW dots and dashes.
!2 ELECTRONIC CW KEYER SPEED CONTROL
[KEY SPEED] (p. 4-4)
Adjusts keying speed for the internal electronic CW
keyer.
•6wpm(minimum)to48wpm(maximum)istheadjust-
able range.
!3 MONITOR SWITCH MONITOR (p. 6-4)
Monitors your transmitted IF signal.
•TheCWsidetonefunctionsregardlessof MONITOR
switch setting in the CW mode.
The[MONITOR]indicatorabovethisswitchlights
green while the function is activated.
!4 BREAK-IN DELAY CONTROL [DELAY] (p. 6-3)
Adjusts the transmit-to-receive switching delay
time for CW semi-break-in operations.
!5 AGC CONTROL [AGC] (p. 5-12)
Adjusts the continuously-variable AGC circuit time
constant.
•Touse[AGC]control,push AGCVR ([AGCVR]indi-
cator lights).
!6 SQUELCH CONTROL [SQL]
(outer control; p. 3-9)
Adjusts the squelch threshold level. The squelch
mutes noise output from the speaker (closed con-
dition) when no signal is received.
•ThesquelchisparticularlyeffectiveforFM.Itisalso
available in other modes.
•The11to12o’clockpositionisrecommendedforthe
most effective use of the [SQL] control.
Deep
Deep
Noise squelch
Squelch
threshold
Shallow
Shallow
S-meter
squelch
Squelch is
open
Slow
Fast
Long delay for
slow speed keying
Short delay for
high speed keying
Max.
48 wpm
Min.
6 wpm
Increases
Decreases
Recommended level for
an Icom microphone
Decreases
Decreases Increases
Increases
1
PANEL DESCRIPTION
13


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