UHF Handheld transmitter Body 제조사 MODEL NAME BEYERDYNAMIC S 900 M UHF HAND MICROPHONE BODY UHF Handheld transmitter Body Polar pattern : Hypercardioid : SDM 960, SDM 960 M : Supercardioid : SDM969 : Cardioid : SEM 981, SCM930M Transducer type : True condenser : SCM 930 M : Dynamic : SDM 969, SDM 960 M, SDM 969 : Electret condenser : SEM 981 Frequency range : 740 ~ 752MHz Modulation : FM Nominal deviation : -/+ 40kHz Radiated transmitter power : 10mW Compander system : NE572 Max. SPL : 146dB AF transmission range(close miking 2 cm) at 80 dB SPL : 55 ~ 18,000Hz : SDM 960, SDM 960 M : 65 ~ 16,000Hz : SDM 969 : 50 ~ 18,000Hz : SEM 981 : 40 ~ 20,000Hz : SCM 930 Rear attenuation -20dB at 1 kHz/120° : SDM 960, SDM 960 M -15dB at 1kHz/145° : SDM 969 -15dB at 1kHz/180° : SEM 981 -20dB at 1kHz/180° : SCM 930 Signal-to-noise ratio : > 110dB T.H.D : < 0.5% at 1kHz Transmission range : 100m Power supply : 2 x 1.5V batteries (AA) or rechargeable batteries Current consumption : approx. 85mA Operating time : > 20 hours with alkaline batteries Length : 210.5mm Shaft : 38mm Weight(with batteries) : 172g