D FRONT VIEW
q FREQUENCY UP/DOWN SWITCHES [UP]/[DOWN]
Push to change the frequency.
Hold down to change the frequency continuously.
w LOW CUT SWITCH [LOW CUT]
Push to cut out the low frequency components of
input voice signals.
e PTT SWITCH [PTT]
Push to transmit, then release to receive.
r PTT LOCK SWITCH [LOCK]
Push to transmit continuously. The transmission
continues until pushing this switch again.
INSTRUCTIONS
DESKTOP MICROPHONE
SM-50
Thank you for choosing this Icom
product. READ ALL INSTRUCTIONS
carefully and completely before using
this product.
About CE
The SM-50 complies with the
essential requirements of the
2014/30/EU directive for
Electromagnetic Compatibility and
the 2001/95/EC directive for General Product
Safety.
DISPOSAL
The crossed-out wheeled-bin
symbol on your product, literature,
or packaging reminds you that in
the European Union, all electrical
and electronic products, batteries,
and accumulators (rechargeable
batteries) must be taken to designated
collection locations at the end of their working
life. Do not dispose of these products as
unsorted municipal waste. Dispose of them
according to the laws in your area.
• Microphone type: Unidirectional dynamic microphone (preamp built-in)
• Output impedance: 55 Ω ±30% (at 1 kHz)
• Sensitivity: –30 dB ±4 dB (at 1 kHz, 0 dB=1 V/Pa)
• Power requirements: 5–10 V DC (supplied from the transceiver)
• Cable length (approximate): 1 m, 3 ft 3
3
⁄8 in
• Weight (approximate): 730 g, 26 oz
All stated specications are subject to change without notice or obligation.
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan
A-6706X-1G-w Printed in Japan
© 2008–2016 Icom Inc.
Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incorporated (Japan) in the United States, the
United Kingdom, Germany, France, Spain, Russia, Australia, New Zealand, and/or other countries. and/or other
countries.
D BOTTOM VIEW
t MIC GAIN VOLUME [MIC GAIN]
Rotate to adjust the microphone output level.
L Use this control as an adjunct to the microphone
gain setting of the connected transceiver.
NOTE: Rotating the control too far clockwise
may result in over-modulation and transmit signal
distortion.
MIC GAIN
PRECAUTIONS
SPECIFICATIONS
PART NAMES AND FUNCTIONS
D PLUG PIN ASSIGNMENTS
The pins are described from the direction of the arrow in the illustration.
The SM-50 is an unidirectional, dynamic microphone designed for base station operation
with an Icom transceiver.
Icom is not responsible for the destruction, damage to, or performance of any Icom or non-Icom
equipment, if the malfunction is because of:
• Force majeure, including, but not limited to, res, earthquakes, storms, oods, lightning, other
natural disasters, disturbances, riots, war, or radioactive contamination.
• The use of Icom transceivers with any equipment that is not manufactured or approved by Icom.
q
w
e
r
t
q Microphone output
w 5–10 V DC input
e Frequency up/down
r No connection
t PTT
y GND (PTT ground)
u GND (Microphone ground)
i No connection
CAUTION: NEVER
expose the microphone to
rain, snow or any liquids. The microphone may
be damaged.
CAUTION: NEVER let metal, wire or other
objects protrude into the microphone or into
connector.
CAUTION: NEVER touch or operate the
desktop microphone with wet hands.
CAUTION: NEVER use harsh solvents such as
benzine or alcohol when cleaning, because they
will damage the microphone’s surfaces.
CAUTION: USE with specied Icom
transceivers only. Other manufacturer’s
transceivers have different pin assignments and
may damage the transceiver or microphone if
attached.
DO NOT operate or place the microphone in
direct sunlight or in areas with temperatures
below –10°C (+14°F) or above +60°C (+140°F).
DO NOT place the microphone in excessively
dusty environments.
Always place the microphone in a secure place
to avoid inadvertent use by unauthorized person.
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