Product Description
The product uses the latest transmitter chip Bk9531, the maximum transmission power is 14dBm
Microphone gain range: o~47.5dB per step 0.5dB audio AGC and limiter
Dedicated GplO indicates the energy of the transmitted audio signal (GP丨o3), automatic noise suppression
Support dual-frequency diversity transmission, support external PCM/l|s dual-mode digital audio interface
Working voltage 2.8~3.6V
Working frequency 515~580MHz
Digital modulation method Pi/4DQpsk occupies bandwidth,
<300KHz transmission rate 204.8ksps,
Audio signal-to-noise ratio is 96dB, frequency response is 30~20kHz,
1 byte dedicated data channel 7kbpS,
The internal CRc check audio and data are transmitted with 32-bit encryption.
Features of receiver chip B9532:
Receiving sensitivity: 99dBm
Maximum support 4 antenna diversity
Antenna automatic selection
RF AGC and AFC,
Dedicated GPlO indicates the energy of the received audio signal
Dedicated GPl0 indicates the synchronization status of sending and receiving
Two-band digital reverb, 15-band digital audio equalization
Active/passive anti-howling and packet loss compensation mechanism.
In normal use, the receiving distance can reach 200 meters.
