ICOM艾可慕Icom_SM维修手册含电器原理图-10_user操作说明书手册

Downloaded byRadioAmateur.EUICOMINSTRUCTIONSCOMPRESSOR/GRAPHIC EQUALIZERDESK TOP MICROPHONESM-10INTRODUCTIONSPECIFICATIONSThank you for purchasing an optional SM-10 desk top1.GENERALmicrophone for your ICOM transceiver.It was designed.Current drain (13.8V DC):for base station use,and consists of an electretEQUALIZER ON Approx.15mAcondenser microphone element with a compressorEQUALIZER OFF Approx.8mAamplifier,plus tunable equalizer for maximum control●Dimensions:of the audio characteristics of your transmitted signal.230mm(W)×110mm(D)×30mm(H)The SM-10 is highly sensitive and produces clear,crispWeight:audio.1.9kgTo fully enjoy the benefits of your high-performance2.MICROPHONE CIRCUITtransceiver with the SM-10,please read these instructions●Microphone:thoroughly prior to operation.Broadband electret condenserDESCRIPTIONNumber of semiconductors:Transistors 13GRAPHIC EQUALIZER AMPLIFIER INCLUDEDDiodes5Since four individual equalizer amplifiers are installed◆Type of microphone:in the SM-10,transmit audio can be adjusted forUni-directionaldifferent applications.The higher frequencies may●Output impedance:be accentuated when contacting remote DX stations100nto give your signal greater punch,or the lowerOutput levelfrequencies may be emphasized to produce softer,0-30mWmore pleasant audio when engaged incasual●Compression level:conversations with local stations.HIGH 45dBMED 35dBLOW 10dBHIGH-QUALITY COMPRESSOR AMPLIFIER INCLUDEDTransmit output power is constant while using the3.EQUALIZER CIRCUITcompressor even if the voice level fluctuates over aNumber of semiconductors:wide range.In addition,the compression level mayICs3be set to one of three different values for maximum.Signal-to-noise ratio:operating flexibility.80dB●Distortion:USES UNI-DIRECTIONAL MICROPHONE ELEMENT0.05%Through use of a uni-directional microphone,a high●Equalizer:audio-to-noise ratio is obtained which effectively4 stages(±12dB)suppresses background noise.■LEVEL METER ANDOUTPUT LEVEL CONTROL INCLUDEDThe output level can be monitored with the VU meterNOTE:The SM-10 may be used with the following ICOMon the SM-10 top panel,and the output adjustedtransceivers:continuously with the OUTPUT LEVEL control.1C-761,1C-751/A,IC-745,IC-735,IC-575A,IC-275A/E/H,IC-271A/E/H,IC-28A/E/H,IC-27A/E/H,1C-375A,1C-38A,IC-37AUP/DOWN FUNCTION SWITCHESIC-475A/E.IC-471A/E,1C-48A/E,1C-47A/EFrequency shifts are easy with the convenientIC-45A/E,I1C-1271A/E,IC-1200A/E,IC-120,UP/DOWN switches.IC-3200A/E,IC-900A/E