成都舞臺燈光設備公司，無線夾領話筒 ，鐵三角話筒。成都順朋15882188252 OVERALL SYSTEM SPECIFICATIONS OPERATING FREQUENCIES UHF Band C: 541.500 MHz to 566.375 MHz UHF Band D: 655.500 MHz to 680.375 MHz ________________________________________ NUMBER OF CHANNELS 200 total per band ________________________________________ FREQUENCY STABILITY ±0.005%, Phase Lock Loop frequency control ________________________________________ MODULATION MODE FM ________________________________________ NORMAL DEVIATION ±5 kHz ________________________________________ OPERATING RANGE 300' typical ________________________________________ OPERATING TEMPERATURE RANGE 41° F (5° C) to 113° F (45° C) ________________________________________ FREQUENCY RESPONSE 70 Hz to 15 kHz RECEIVER SPECIFICATIONS RECEIVING SYSTEM Dual independent RF sections, automatic-switching diversity ________________________________________ IMAGE REJECTION 60 dB typical ________________________________________ SIGNAL-TO-NOISE RATIO 115 dB at 40 kHz deviation (IEC-weighted), 75 kHz maximum modulation ________________________________________ TOTAL HARMONIC DISTORTION <=1% (10 kHz deviation at 1 kHz) ________________________________________ SENSITIVITY 20 dBμV (S/N 70 dB at 5 kHz deviation, IEC-weighted) ________________________________________ INTERMEDIATE FREQUENCY 65.75 MHz, 10.7 MHz ________________________________________ AUDIO OUTPUT - MICROPHONE 25 mV (at 1 kHz, ±5 kHz deviation, 10k ohm load), transformer isolated and balanced (ATTN switch at "0") ________________________________________ AUDIO OUTPUT - INSTRUMENT 50 mV (at 1 kHz, ±5 kHz deviation, 10k ohm load), transformer isolated and balanced (ATTN switch at "0") ________________________________________ AUDIO OUTPUT ATTENUATOR (ATTN) Three-position switch: 0 / -6 / -12 dB ________________________________________ OUTPUT CONNECTORS (MICROPHONE) XLRM-type, balanced