Advanced automatic frequency technology. If the frequency of transmitter and receiver are mess, you can press conference unit to search the frequency of transmitter and adjust the frequency same as transmitter’s
? Adopt UHF super high frequency range; Less interference than traditional VHF and more reliable.
? DPLL synthesis of digital phase locked loop multi-channel frequency synthesizer. In 50MHz frequency bandwidth, 250KHz channel apart, it provide 200 channels. Many sets machine can be used simultaneously.
? Advanced automatic frequency technology. If the frequency of transmitter and receiver are mess, you can press conference unit to search the frequency of transmitter and adjust the frequency same as transmitter’s.
? 2804/03 adopts 14mm diameter gold-plated capacitive microphone core; The pickup distance is up to 100cm.
? Special receiving sensitivity adjustable function which is used to improve anti-interference capacity or increase receiving distance.
? LCD display screen. Can check working status clearly.
? The range can be 60M in ideal environment.
? Free discussion working mode.
? Using 20pcs wireless conference units in same space and same frequency range; If the frequency is not setup properly, it will causes intermodulation interference.
? Power supplied by lithium battery; The working time can be 48 hours.
? We suggest to choose profession & high efficiency recharging box.
Model |
RX-D2804/03 |
System capacity |
Depends on system controller ≤20 pcs |
Frequency range |
640-690MHz |
Modulation mode |
Wide band FM |
Adjustable range |
50MHz |
Channel quantity |
200 |
Channel spacing |
250KHz |
Frequency stability |
Within ±0.005% |
Dynamic range |
100Db |
Frequency swing |
±45KHz |
Frequency response |
80Hz ~ 18KHz (±3dB) |
Comprehensive SNR |
>105dB |
Comprehensive distortion |
≤0.5% |
Working temperature |
-10℃--+40℃ |
Antenna program |
Built-in helical antenna |
Output power |
High power 30mW; Low power 3mW |
Transmitting distance |
High power: 60M; Low power 50M |
Spurious inhibition |
-60dB |
Power supply |
2400MA/H lithium battery; Can work 48 hours continuously. |
Color |
Grey, Black, silver |
Installation |
Tabletop |