Icom SM-50 Instructions

INSTRUCTIONS
DESKTOP MICROPHONE
SM-50
PRECAUTIONS
RNEVER expose the microphone to rain,
snow or any liquids.
RNEVER let metal, wire, etc. touch any in-
ternal part of the microphone.
RNEVER touch or operate the desktop mi-
crophone with wet hands.
DO NOT place the microphone in exces-
sively dusty environments or in direct sun-
light.
Place the microphone in a secure place to
avoid inadvertent use by children.

SPECIFICATIONS

• 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 (approx.) : 1000 mm; 3 ft 3
• Weight (approx.) : 730 g; 26 oz
All stated specifications are subject to change without notice or obligation.
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 and/or other countries.
Thank you for purchasing the SM-50
. This is a unidirec-
desktop microphone
tional, dynamic microphone designed
for base station operation with an Icom
transceiver.
Please read these instructions thorough-
ly before using the microphone.
This microphone is for Icom transceiv-
ers only!— The microphone cannot be
used with a non-Icom transceiver since
the power is supplied from the connected
transceiver.
About CE
T he SM-50 complies with the essen-
tial requirements of the 2004/108/
EC directive for Electromagnetic
Compatibility.
⁄ in
3
8
PART NAMES AND FUNCTIONS
D FRONT VIEW
q
w
e
r
D BOTTOM VIEW
MIC GAIN
t
D PLUG PIN ASSIGNMENTS
The pins are described from the direction of the arrow in the illustration.
q Microphone output
w 5–10 V DC input
e Frequency up/down
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan
q F REQUENCY UP/DOWN SWITCHES
[UP]/[DOWN]
P ush to change the frequency.
• P ushing and holding the switch chang-
es the frequency continuously.
w LOW CUT SWITCH [LOW CUT]
P ush to cut out the low frequency com-
ponents of input voice signals.
e PTT SWITCH [PTT]
P ush to transmit, then release to re-
ceive.
r PTT LOCK SWITCH [LOCK]
P ush to transmit continuously. The
transmission continues until pushing
this switch again.
t MIC GAIN VOLUME [MIC GAIN]
R otate to adjust the microphone output
level.
• U se this control as an adjunct to the
microphone gain setting of the con-
nected transceiver.
R otating the control too far clockwise
may result in over-modulation and
transmit signal distortion.
i No connection
u GND (Microphone ground)
y GND (PTT ground)
t PTT
r No connection
A-6706X-1G-q Printed in Japan
© 2008 Icom Inc.