icom_维修说明书手册50_使用说明书手册

PART NAMES AND FUNCTIONSICOMINSTRUCTIONSThank you for purchasing the SM-50FRONT VIEWDESKTOP MICROPHONEDESKTOP MICROPHONE.This is a unidirec-FREQUENCY UP/DOWN SWITCHEStional,dynamic microphone designed[UPMIDOWN]SM-50for base station operation with an IcomPush to change the frequency.transceiver.Pushing and holding the switch chang-Please read these instructions thorough-es the frequency continuously.ly before using the microphone.LOW CUT SWITCH [LOW CUT]Push to cut out the low frequency com-ponents of input voice signals.PRECAUTIONS3 PTT SWITCH [PT可Push to transmit then release to re-ANEVER expose the microphone to rain,This microphone is for icom transcei-coive.snow or any liquids.ers only The microphone cannot bePTT LOCK SWITCH [LOC灯used with a non-lcom transceiver sincePush to transmit continuously.TheNEVER let metal,wire,ete.touch any in-the power is supplied from the connectedtransmission continues until pushingtemal part of the microphone.transceiver.this switch again.NEVER touch or operate the desktop mi-About CE◇BOTTOM VIEWcrophone with wet hands.The SM-50 complics with the essen-tial requirements of the 2004/108/MIC GAIN VOLUME [MIC GAIN]DO NOT place the microphone in exces-EC directive for ElectromagneticRotate to adjust the microphone outputsively dusty emvironments or in direct sunCompabbility.level.light.MIC GAINUse this control as an adjunct to themicrophone gain setting of the con-Place the microphone in a secure place tonected transceiver.avoid inadvertent use by children.Rotating the control too tar clockwisemay result in over-modulation andtransmit signal distortion.SPECIFICATIONSMicrophone typeUnidirectional dynamic microphone (preamp built-in)Output impedance:55Q±30%(at1Hz◇PLUG PIN ASSIGNMENTS·Sensitivity-30 dB t4 dB (at 1 kHz,0 dB=1 V/Pa)The pins are described from the direction of the arrow in the illustration.Power requirements5-10 V DC (supplied from the transcever)·Cable length (approx..】:1000mm:3t3地inB No connection·Weight(approx.):730买：260z①Microphone outputGND (Microphane ground)All stated specifications are subjeet to change without notlee or obligation.③5-10 V DC input6GND (PTT ground)Frequency up/down@PTΠlcom,Icom Inc.and the lcom logo are registered trademarks of lcom Incorporated (apan)in the United④No connectionStates.the United Kingdom.Germany,France.Spain,Russia and/or other countries.lcom Inc.Count on us!1-1-32 Kamiminaml,Hirano-ku,Csska 547-0003,JapanA67ca-1G①Printed in Japan2008 lcom Ine.