: 668 - 692 MHz
: 841 - 865 MHz**
● Modulation : FM
● Nominal deviation : ±40kHz
● Radiated transmitter power : 20mW
● Compander system : NE572
● 신호 대 잡음 비 : >110dB
● T.H.D. : <0.5% at 1 kHz
● 주파수 응답특성 : 50Hz ~ 18,000Hz
● Gain : 10mV - 0.3V adjustable, at nominal deviation
● 전원 공급장치 : 2x1.5V batteries(AA) or rechargeable batteries
● Current consumption : 약 85mA
● Operating time : >20 hours with alkaline batteries
● 크기(LxWxD) : 110 x 63 x 21.5mm
● 무게 : 145 g
● 4-pin connection : Pin1=Ground, Pin2=IN1, Pin3=IN2, Pin4=+5V
OPUS 654 (OPUS 54) CONDENSER MICROPHONE
● Transducer type : Condenser (back electret)
● Operating principle : Pressure gradient
● Polar pattern : Cardioid
● Frequency response : 40 - 17,000 Hz (close miking)
● Open circuit voltage : 6 mV/Pa*
● Nominal impedance : 200 Ω*
● Load impedance: ≥ 1 kΩ*
● Max. SPL at f = 1 kHz, k = 1%, R = 1 Kω : 132 dB*
● S/N ratio rel. to 1 Pa: 60 dB
● A-weighted equivalent SPL: 26 dB
● Weight (without cable) : 39 g