Frequency range: 640-690MHz

Modulation mode: Wideband FM

Adjustable range: 50MHz

Number of channels: 200

Channel interval: 250KHz

Frequency stability: ±0.005% or less

Dynamic range: 100dB

Maximum frequency deviation: ±45KHz

Audio Response: 80Hz-18KHz (±3dB)

Integrated signal-to-noise ratio: >105dB

Comprehensive distortion: ≤ 0.5%

Operating Temperature: -10℃--+40

Receiver indicators

Receiver mode: secondary frequency conversion super-aberration

IF Frequency: First IF: 110MHz Second IF 10.7MHz

Wireless interface: BNC/50Ω

Sensitivity: 12 dBV (80dBS/N)

Sensitivity adjustment range: 12-32 dBV

Spurious rejection: ≥75 dB

Maximum output level: +10 dBV

Antenna program: Pendant transmitter using 1/4 wavelength whip antenna

Handheld microphone built-in spiral antenna. Beltpack from a single 24V power supply. Can be connected to commercially available power supply, condenser microphone

Output power: high power 30mW; low power 3mW

Spurious rejection: -60dB

Power supply: three AA batteries

Use time: 30mW when greater than 10 hours

3mW greater than 15 small conference unit, using 2.4-inch TFT color display, with speech timing and mute function