▪ UHF high band (650-690MHz) FM, in the transmitter FM
▪ One-two FM, 2*30 channels 
▪ Handheld microphone with A/B channel switch button, the microphone is divided into A/B microphone use
▪ Receiver display fixed display (false screen)
■ brushed metal panel, the receiver and handheld transmitter using a durable metal shell (handheld material half plastic half metal)
▪ Standard 1U chassis, easy engineering installation and commissioning
■ Ideal use distance of about 30-60 meters
▪ Dual antenna reception, while setting a 6.5 output and two carillon balanced output, suitable for connecting a variety of external devices
UHF wireless dual-channel reception, automatic frequency pairing, automatic wireless lD code reception use, complete the wireless synchronization of the transmitter, dedicated GPIO instructions to receive audio signal energy, dedicated GPIO instructions to send and receive synchronization status, no infrared window to frequency, to achieve a frequency pairing, N frequency tuning, save each time the steps of frequency pairing, simplify
▪ Dedicated GPIO instructions to receive audio signal energy, dedicated GPIO instructions to send and receive synchronization status, to achieve audio synchronization, no delay
▪ dedicated data channel: 7Kbps, internal CRC checksum, audio and data using 32-bit encrypted word transmission, encrypted transmission, effective anti-crosstalk frequency, not easy to use with other machines in the same field when the conflict
■ 8-segment audio equalization anti-whistle circuit, effective anti-whistle, to avoid unnecessary noise
▪ 8-segment audio equalization, the sound picked up to optimize, making the restoration of the human voice more dynamic
microphone sound quality: easy to pick up the sound, speak without tired, crisp restore the original voice
■ microphone are built-in high-quality sound filter sponge, effective filtering environmental noise
▪ powerful audio sensitivity range, so your voice stands out
■ single microphone powered by two AA batteries, using high-energy alkaline batteries can be used for a longer period of time
Wide range of applications, used in home theater, KTV booths, conference presentations, high-end clubs, schools, teaching, halls of performance, enterprises and institutions conference rooms and other places.
1 . Comprehensive parameters COMPREHENSIVE PERFORMANCE
Working voltage: 2.8~4.2V
Operating frequency: 500~980MHz
Crystal frequency: 24.576MHz, crystal adjustment range: +/-20ppm
Occupied broadband: 300KHz; transmission rate 204.8Kbps
Delay: less than 3ms from microphone input to audio output delay (48KHz sample rate mode, without anti-whistle function)
Audio signal-to-noise ratio: 96dB
Frequency response: 30~20KHz
Dedicated data channel: 7Kbps, internal CRC checksum, audio and data using 32-bit encrypted word transmission

2. Receiver parameters FIXED RECEIVER
Receiving sensitivity: -94dBm
Audio output gain adjustment: -15~6dB, 3dB per step
Audio maximum output: 1Vpp
RF AGC and AFC
Dedicated GPIO to indicate the received audio signal energy
Dedicated GPIO to indicate the state of transceiver synchronization
Dual antenna diversity, antenna automatic selection
8-band audio equalization
Anti-whistle circuit

3. Transmitter parameters HANDING MICROPHONE
Maximum transmit power: 13dBm
Microphone gain adjustment range: 0~47.5dB, 0.5dB per step
Maximum audio input: 2Vpp
Audio AGC and limiting
Dedicated GPIO indication of the emission of audio signal energy
 

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