User's Manual

30
2
INSTALLATION AND CONNECTIONS
2
N-ICROPHONECONNECTORINFORMATION
(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
CAUTION: DO NOT 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
D SM-50 (Option)
q
w
r
e
q UP/DOWN SWITCHES [UP]/[DN]
Push to change the frequency or memory channel.
s7HILEHOLDINGDOWNTHEFREQUENCYORMEMORYCHANNEL
number continuously increases or decreases.
s7HILEINTHESPLITFREQUENCYMODEANDHOLDINGDOWN
[XFC], push to change the transmit frequency.
s4HE;50=;$.=SWITCHCANBEUSEDASAKEYPADDLEIF
the “MIC Up/Down Keyer” item setting is “ON” in the
Keyer Set mode. In such case, the frequency and mem-
ory channel cannot be changed using the [UP]/[DN]
switches. (p. 55)
s9OUCANSETTHEDOTDASHPOLARITYOFTHE;50=;$.=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
 (OLDDOWNTOTRANSMITRELEASETORECEIVE
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.