Functional features
1. Use the UHF690-860 MHZ band, frequency to avoid interference
2. Automatic infrared to frequency, make automatic synchronization transceiver transmitter and receiver
3. The stable phase-locked loop PLL frequency synthesis system,  200 channels
4. Adopting new high frequency filter, maximize the out-of-band interference signal filtering
5. Use quadratic frequency of high frequency circuit design, has a very high sensitivity
6. Multiple noise control circuit, refused to open the machine noise system outside interference
7. Specially designed voice compression extension circuit, greatly improve signal-to-noise ratio
8. The unique circuit design, dynamic big, wide frequency response, low noise
 
Receiver index:
1 receiver mode: two times the frequency conversion super heterodyne
2 if frequency: the first if: 110MHz, second if 10.7MHz
3 wireless interface: BNC/50
4 sensitivity: 12dB V (80dBS/N)
5 sensitivity range: 12-32dB V sensitivity range
6: spurious suppression is greater than or equal to 75dB
7 maximum output level: +10dBV
 
1. Frequency Range：UHF 690-860MHz
2. Modulation mode: broadband FM
3. adjustable range：50MHz
4.  Channel：2x100
5. frequency stabilization：±0.005%
6.  dynamic range：100dB
7. MAX deviation range：±45KHz
8. Frequency respond：80Hz-18KHz(±3dB)
9. S/N Ratio：＞105dB
10. T.H.D：≤0.5%
11. operating temperature ：-10℃ ~ +40℃
12.Operating distance:80m 
 
Transmitter indicator:
1 antenna program: with hanging transmitter with 1/4 wave whip antenna, handheld microphone built-in spiral antenna
2 output power: high frequency 30Mw, low frequency 3Mw
3 spurious suppression: -60dB
4 power supply: two DC 1.5V AA battery
5 use time: 30mW is greater than 10 hours, 3mW is greater than 15 hours