The UHF and 200 channel series wireless tube produced by our company adopts the world's advanced DPLL digital phase-locked loop multi-channel frequency synthesis technology and noise automatic control technology. 200 channels are pre-set in the 50MHz frequency band, and the infrared automatic channel is utilized. The frequency chasing and system locking function can realize the upper frequency of any microphone and any receiver in the system, which completely solves the shortcoming that the fixed frequency microphone is not universal. Especially suitable for multiple sets of products used in the same occasion. The system also offers special channels outside of 200 channels.

System features: Any microphone and any receiver in this system can be used for upper frequency, which completely solves the shortcomings of fixed frequency microphones, and is suitable for multiple sets of products in the same occasion.

 System parameters:

Working frequency: 740-789.75MHz

Modulation method: wideband FM

Number of channels: 200

Channel spacing: 250KHz

Frequency stability: ±0.005%

Dynamic range: 100dB

Maximum offset: ±45KHz

Audio frequency response: 20Hz-20KHz (±3dB)

Comprehensive signal to noise ratio: >105dB

Comprehensive distortion: ≤0.5%

Working distance: 80m (in the case of an ideal environment)

Working environment temperature: -10 °C ~ +50 °C

Receiver indicators:

Receiver mode: double conversion superheterodyne

Intermediate frequency: 110MHz, 10.7MHz

Antenna access: BNC/50Ω

Sensitivity: 12dBuV (80dBS/N)

Sensitivity adjustment range: 12-32dBuV

Spurious suppression: ≥75dB

Maximum output level: +10dBV

Transmitter indicator:

Antenna: built-in

Output power: <10mW

Stray suppression: -60dB

Power supply: 2 5th 1.5V alkaline batteries

Battery life: about 10 hours for normal power transmission (about 12 hours for low power transmission)