ICOM艾可慕Icom_SM维修手册含电器原理图-5_user操作说明书手册

Scanned by PAOPJE□▣DICOMDownloaded by▣RadioAmateur.EUELECTRET CONDENSER TYPEDESK MICROPHONESM5WITH BUILT-IN PREAMPLIFIERINSTRUCTION MANUALCongratulations on the purchase of DESK MICROPHONEIC-SM5 for new ICOM's transceiver.To original amplifierThis microphone will increase your operating convenience andTransceivermake operation of the transceiver more enjoyable with clear toneMicrophoneand good pickup capability.ConnectorIC-SM5 is an electret condenser type desk microphone with a47日built-in preamplifier.So.a DC voltage should be applied to thepreamplifier.In the IC-SM5 the DC voltage is superimposed onthe AF output line.ICOM transceiver has an 8 pin microphone connector,to accept女the IC-SM5 microphone,but other transceiver or transmittershould be modified as per the following schematic chart.(Outside View)7SPECIFICATIONSTypeElectret condenser typeDirectionalP.T.T.CharacteristicsUni-directionalImpedance1.3K ohmo@Frequency Response400≈10000(Hz)】RoocSensitivity-27dB±6dBat1000Hz(Level control in max.position)】2sD661OdB=luberWeight310g (including Cord andConnector)CircuitAs per the following chart63Note:Specifications subject to change without notice.HOW TO USE1.A sensitivity control is installed on the bottom ofthe mic stand.By turning it to the "H"or "L"4.To transmit,press the PTT switch downward.When it is released,the transceiver will return toposition,the sensitivity will increase or decrease,respectively.Adjust the control so as to get thethe receive condition.For a long transmission,pull 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 itsplug to the mic socket on a transceiver (or trans-LOCK RELEASEmitter）.ICOM INCORPORATEDPrinted in JapanA-0251