ICOM–IC-SM-5-操作说明书手册

DICOMELECTRET CONDENSER TYPEDESK MICROPHONEC-SM5WITH BUILT-IN PREAMPLIFIERINSTRUCTION MANUALCongratulations on the purchase of DESK MICROPHONETo original amplifierIC-SM5 for new ICOM's transceiver.This microphone will increase your operating convenience andTransceivermake operation of the transceiver more enjoyable with clear toneMicrophoneConnectorand good pickup capability.4IC-SM5 is an electret condenser type desk microphone with abuilt-in preamplifier.So,a DC voltage should be applied to thepreamplifier.In the IC-SM5 the DC voltage is superimposed on60.01the AF output line.ICOM transceiver has an 8 pin microphone connector,to acceptthe IC-SM5 microphone,but other transceiver or transmittershould be modified as per the following schematic chart.(Outside View)SPECIFICATIONSTypeElectret condenser typeDirectionalP.T.T.分①CharacteristicsUni-directional@②Impedance1.3K ohmFrequency Response400≈10,000(Hz)Sensitivity-27dB±6dBat1000Hz中(Level control in max.25D661position)F.BOdB luberWeight310g (including Cord andConnector)CircuitAs per the following chartNote:Specifications subject to change without notice.HOW TO USE1.A sensitivity control is installed on the bottom of4.To transmit,press the PTT switch downward.the mic stand.By turning it to the "H"or "L"When it is released,the transceiver will return toposition,the sensitivity will increase or decrease,the receive condition.For a long transmission,respectively.Adjust the control so as to get thepull the PTT switch backwards,while pressing itproper sensitivity considering the distance to thedown until the switch is locked and it will remainmic,the loudness of your voice and the environ-in that position until it is pushed foward andmental conditions.released.Refer to the following chart.2.The wind screen not only prevents backgroundnoise due to wind,but also protects the mic.Unless required,do not remove the screen fromthe mic.PTT3.In order to operate the microphone,connect itsLOCKplug to the mic socket on a transceiver (or trans-LOCK RELEASEmitter).ICOM INCORPORATEDPrinted in JapanA-0251