W640 WIRELESS CONFERENCE MICROPHONE

Application:

Description:

1. Fully automatic infrared frequency binding, so that the transmitter and receiver can automatically send and receive synchronously 2. Using phase-locked loop PLL frequency synthesis stabilization system, providing 120 channels 3. Use the latest high-frequency filter to filter out-of-band interference signals to the maximum extent 4. The high-frequency circuit design with double frequency conversion has extremely high sensitivity 5. Multiple squelch control circuits to reject external interference 6. The specially designed voice compression and expansion circuit greatly improves the signal-to-noise ratio 7. Unique circuit design, large dynamic, wide frequency response, low noise 8. Fashionable color screen design, built-in 60 groups of frequency modules, simplifying the user's frequency modulation program

Specifications:

1. Frequency range: UHF520~940MHz (optional)
2. Modulation method: Broadband FM
3. Adjustable range: 50MHz
4. Number of channels: 2x100
5. Channel interval: 250KHz
6. Frequency stability: within ±0.005%
7. Dynamic range: 100dB
8. Maximum frequency deviation: ±45KHz
9. Audio response: 80Hz-18KHz(±3dB)
10. Comprehensive signal-to-noise ratio: >105dB
11. Comprehensive distortion: ≤0.5%
12. Working temperature: -10℃ ~ 40℃
Receiver technical parameters:
1. Receiver mode: double-conversion superheterodyne
2. Intermediate frequency: the first intermediate frequency: 110MHz, the second intermediate frequency 10.7MHz
3. Wireless interface: BNC/50
4. Sensitivity: 12dBμV(80dBS/N)
5. Sensitivity range: 12-32dBμV
6. Spurious suppression: ≥75dB
7. Maximum output level: +10dBV
Transmitter technical parameters:
1. Antenna program: bodypack transmitter adopts 1/4 wavelength whip antenna, handheld microphone built-in helical antenna
2. Output power: high frequency 30Mw, low frequency 3Mw
3. Spurious suppression: -60dB
4. Power supply: two AA DC 1.5V batteries
5. Use time: more than 10 hours at 30mW, more than 15 hours at 3mW