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INSTALLATION AND CONNECTIONS
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N
-ICROPHONECONNECTORINFORMATION
(Front panel view)
y
GND (PTT ground)
t
PTT
r
Main band’s squelch switch
q
Microphone input
w
+8 V DC output
e
Frequency up/down
i
Main band’s AF output
(varies with [AF])
GND
(Microphone ground)
u
[MIC]
0IN.O
FUNCTION
DESCRIPTION
w
+8 V DC output
Max. 10 mA
e
Frequency up
Ground
Frequency down
Ground through 470
˘
r
Squelch open
“Low” level
Squelch closed
“High” level
#!54)/.$/./4
short pin 2 to ground as this
can damage the internal 8 V regulator. DC voltage
is applied to pin 1 for microphone operation. Use
caution when using a non-Icom microphone.
N
-ICROPHONES
D
HM-36
q
w
q
w
r
e
D
SM-50
(Option)
q
w
q
w
r
e
q
UP/DOWN SWITCHES [UP]/[DN]
Push to change the frequency or memory channel.
s7HILEHOLDINGDOWNTHEFREQUENCYORMEMORYCHANNEL
number continuously increases or decreases.
s7HILEINTHESPLITFREQUENCYMODEANDHOLDINGDOWN
[XFC], push to change the transmit frequency.
s4HE;50=;$.=SWITCHCANBEUSEDASAKEYPADDLEIF
the “MIC Up/Down Keyer” item setting is “ON” in the
Keyer Set mode. In such case, the frequency and mem-
ory channel cannot be changed using the [UP]/[DN]
switches. (p. 55)
s9OUCANSETTHEDOTDASHPOLARITYOFTHE;50=;$.=SWITCH
in the “Paddle Polarity” item of the Keyer Set mode.
When “Normal” is selected, [UP] sends a dash, and
[DN] sends a dot. (p. 55)
w
PTT SWITCH
(OLDDOWNTOTRANSMITRELEASETORECEIVE
e
PTT LOCK SWITCH
(available on only the SM-50)
Push to toggle between transmit and receive.
r
LOW CUT SWITCH
(available on only the SM-50)
Push to cut out the low frequency components of
input voice signals.