Frequency range: 640 Mhz - 690 Mhz
Modulation: Broadband FM
Adjustable range: 50MHz
Number of channels: 200 Channel
Channel spacing: 250KHz
Frequency stability: ± 0.005%
Dynamic range: 100dB
Maximum frequency deviation: ± 45KHZ
Audio response: 80Hz-18KHz (± 3dB)
Integrated signal to noise ratio:> 105 dB
Integrated distortion: ≤0.5%
Operating temperature: -10 ℃ ~ +40 ℃
Receiver :
Receiver mode: secondary frequency superheterodyne
IF frequency: first IF: 110MHz, 10.7MHz
Wireless interface: BNC / 50Ω
Sensitivity: 12dBμV (80DbS / N)
Sensitivity adjustment range: 12-32 dBμV
Spurious Suppression:> 75dB
Maximum output level: + 10Dbv
Transmitter :
Wireless program: wear the transmitter with a quarter wavelength whip antenna, hand-held microphone built-in helical antenna
Output power: high power 30mW; low power 3mW
Spurious Suppression: -60dB
Power supply: two AA batteries
Use time: 30mW greater than 8 hours, 3mW greater than 12 hours