Operation Manual

1
PANEL DESCRIPTION
1-18
Microphone
q PTT SWITCH
Hold down to transmit, release to receive.
w UP/DOWN KEYS [UP]/[DN]
Push either key to change the operating frequen- ➥
cy, memory channel, Set mode setting, and so on.
(p. 3-9, AI sec. 4, 11)
Hold down either key for 1 second to start scan- ➥
ning.
e UP/DN LOCK SWITCH
Slide to turn the [UP]/[DN] keys lock function ON or
OFF.
HM-198 (Supplied) D
ON
OFF
w
q
e
q PTT SWITCH
Hold down to transmit, release to receive.
w PTT LOCK SWITCH
Push to lock the PTT switch in the transmit mode.
e UP/DOWN SWITCHES [UP]/[DN]
Change the selected readout frequency or memory
channel.
 •Holding down continuously changes the frequency or
memory channel number.
 •Whileholdingdown
XFC
, the transmit readout frequen-
cy can be controlled while in the split frequency mode.
 •The[UP]/[DN]switchcansimulateakeypaddle.Presetin
the “KEYER SET” mode (U/D KEY; MIC Up/Down Keyer).
(AI sec. 4)
r LOW CUT SWITCH
Push (SM-50)/Slide (SM-30) to cut out the low fre-
quency components of input voice signals.
t PTT LOCK INDICATOR [LOCK]
(Only for the SM-30)
Lights red when the PTT lock switch (w) is ON.
y MIC GAIN VOLUME [MIC GAIN]
Rotate to adjust the microphone output level.
 •Usethis control as anaddition to the microphone gain
setting of the connected transceiver.
Rotating the control too far clockwise may result
in an output level that is too high and transmit sig-
nal distortion.
q
r
y
w
e
D SM-50 (Option)
D SM-30 (Option)
q
w
t
MIC GAIN
ONOFF
LOW CUT
yr
TOP VIEW
BOTTOM VIEW
The optional OPC-589 cable is required to connect these 8-pin microphones.