ST-604 one-to-four wireless color screen conference microphone

Function Introduction： UHF ultra-high frequency band, less interference than the traditional VHF band, more reliable transmission; DQPSK digital modulation provides up to 200 channel choices in the 60MHZ frequency range at 300KHZ channel intervals. Digital modulation inherent high immunity to intermodulation interference, can be very simple and convenient to achieve multiple sets of machines at the same time overlapping machine use (for example, 5 sets, a total of 20 transmitting bases at the same time), easy to avoid all kinds of interference; Using random unique ID digital modulation and transmission technology, completely avoid the risk of off-site eavesdropping of traditional wireless conference microphone system using FM modulation! Ensure the confidentiality of signal transmission. The receiver adopts DQPSK dual antenna true diversity reception, in the normal indoor use radius of 30-60 meters in the environment, completely avoid the traditional analog FM modulation of the single antenna receiving mode may stack, noise problems! Digital modulation and high fidelity reception ensure that the audio indicators of the whole machine are consistent! It will not deteriorate as the traditional FM modulation mode does with the increase of the transmission distance (with the traditional FM reception mode, the reception noise, distortion degree and other indicators will deteriorate with the increase of the transmission distance!) Whether it is the receiver, or the transmitting base, it adopts high definition color LCD TFT display, so that the working state of the receiver and transmitter is clear. The TFT display information of the front panel of the receiver includes: channel number of each channel during real-time operation of the four channels (A/B/C/D) under normal working conditions,RF working frequency point, volume level display, real-time AF,RF signal strength display, real-time display of battery power at the transmitting end of each channel and other important information; Under the setting menu, the selection of each working channel, working frequency, channel volume and other important parameters can be conveniently switched and executed. The smooth UI interface allows field engineers to quickly become proficient in operation! The TFT display information of the transmitting base includes: after infrared frequency matching, the status display of the working channel (A/B/C/D) where the transmitting base is located, the display of RF frequency point and RF power gear, and the real-time display of important information such as speaking time, AF level and battery power level.

Category：

Wireless conference microphone

Service hotline:

0750-7779797

Online message

Detailed introduction

System indicators
Frequency range: There are 16 selectable operating frequency bands from 600-960MHz, with a total frequency coverage of 360MHz.
Modulation mode: DQPSK
RF working bandwidth: 60MHz
Number of channels: 200
Channel interval: 300KHz
Frequency stability: ± 0.005%
Dynamic range:>100dB
Audio response: 60Hz-18KHz (± 3dB)
Comprehensive signal-to-noise ratio:>106 dB
Comprehensive distortion: ≤ 0.2%
Working temperature: - 10 ℃ -+40 ℃

Receiver Index
Receiver mode: DQPSK dual antenna true diversity reception
Wireless interface: BNC/50 Ω
Maximum output level:+10dBV

Transmitter indicators
Wireless program: The mounted transmitter uses a 1/4 wavelength whip antenna, and the handheld microphone has a built-in spiral antenna
Output power: High power 10mW;
Spurious suppression: - 60dB
Power supply: two AA batteries
Usage time: greater than 8 hours

Key words:

ST-604 wireless conference microphone