Working frequency: 640-690mhz
Comprehensive signal to noise ratio: > 105dB
Modulation mode: Broadband FM synthesis
Distortion: ≤ 0.5%
Number of channels: 200
Working distance: about 100m (without interference)
Channel spacing: 250kHz
Working environment temperature: - 10 ℃ - + 50 ℃
Frequency stability: ± 0.005%
Dynamic range: 100dB
Maximum offset: ± 45khz
Audio frequency response: 80Hz-18KHz (± 3dB)
Receiver mode: secondary frequency conversion superheterodyne if: 110Mhz, 10.7MHz, antenna access: BNC / 50 Ω
Sensitivity: 12dbuv (80dB s / N)
Adjustment range: 12-32dbuv
Spurious suppression: ≥ 75db
Maximum output level + 10dbv
Transmitter antenna: handheld microphone with built-in spiral antenna, wearing transmitter with 1 / 4 wavelength whip antenna
Output power: high power 30MW; low power 3MW
Spurious suppression: - 60dB
Power supply: 2 No.5 1.5V alkaline batteries
Battery life: about 10 hours at normal power