. Using the VHF200-270MHz frequency to avoid frequency interference.
. Using multilevel high frequency and middle frequency narrowband filter,so as to dispel any possible interference signals.
. Dual-microphone design,can be performed both at the same time.
. There is a volt indicating circuit in the microphone.It can tell you if it is necessary to change the battery.
. All use quartz crystal oscillating circuit,so the frequency is very steady.
. With audio compressing-expanding technology ,the machine can lower noises and increase the dynamic range .It can also lower reecho.
. With the decreasing back-output whistle function,it can decrease the whistle efficient.
. The receiver using multilevel high-frequency to magnify,it is provided with very high sensitivity.
. Adopt pilot tone & noise mute; improve anti-disturbance function for full equipment.
. A specially designed circuit switch is on the phone,it is clearing up waves of miscellaneous signals.
. The tonality is quite good with the excellent crystal and component.
. The use of maxumum distance of 80 meters,an ideal distance of 50 meters.
FIXED RECEIVER:
. The use of supply voltage: AC220V/45-60HZ
. Power consumption: 5WATER
. S/N Ratio: ¡µ90dB
. Image Disturbing Rate: > 80dB
. Resembles Interference: >80dB
. Receiver sensitivity: ¡µ5dBu(SINAD=20dB£©
. De-emphasis: 50uS
HANDHOLD MICROPHONE:
. Transmitting power: 20mW
. Modulation Mode: F3F
. The largest modulation: ¡À25KHZ
. High-order harmonic generation: 40DB below and above the main quasi-wavelet
. The use of supply voltage: 9V
. Continuous time: 6 hours
COMPREHENSIVE PERFORMANCE:
. Carrier Frequency: VHF200¡«270MHz
. Frequency stability: ¡´¡À30ppm
. Dynamic Range: ¡µ90dB
. Harmonic distortion: ¡´ 0.5%
. Frequency response: 40HZ¡«15KHZ ¡À3dB
. Audio output: balance: 0¡«¡À400mV
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