ST-308 4 channel wireless gooseneck microphone

1. Built in 4-group stacker frequency, one key access. The same frequency band can be easily used with four sets of stacker2. It has the function of IR infrared automatic frequency adjustment and inde

1. Built in 4-group stacker frequency, one key access. The same frequency band can be easily used with four sets of stacker


2. It has the function of IR infrared automatic frequency adjustment and independent anti - misoperation system lock key


3. The four channel volume can be adjusted independently. It can provide 4 + 2 6 channels of audio output. Each audio volume output of four channels can be controlled independently


4. A variety of transmitters are available. The transmitters are conference type, handheld type and collar clip type, which can be mixed and used without any worries


5. Color LED display indicates microphone number, RF and AF signal strength, frequency, frequency group / channel, etc


6. The four channel frequency range of the host computer is carefully designed, so that the transmitter can pair any channel at will and exchange at any time, which greatly enhances the flexibility of operation


7. It adopts the latest UHF band wireless audio transmitter IC. It has excellent RF performance and audio performance, providing customers with professional sound quality experience. When the transmitter is turned off, the pilot control will mute the AF signal to suppress the noise, and mute the corresponding channel of the receiver. It ensures the effective blocking of the interference signal


Default factory frequency band. 610mhz -- 670mhz


CHANNAL A: 0-50 FREQUENCY: 610.050MHZ-624.750MHZ


CHANNAL B: 51-100 FREQUENCY: 625.050MHZ-639.750MHZ


CHANNAL C: 101-150 FREQUENCY: 640.050MHZ-654.750MHZ


CHANNAL D: 151-200 FREQUENCY: 655.050MHZ-669.750MHZ



Frequency range: 610 ~ 670 MHz


Modulation mode: FM


Adjustable frequency interval: 50MHz


Number of channels: 200


Channel interval: 300kHz


Frequency stability: ± 0.005%


Dynamic range range:100dB


Max frequency deviation


Frequency response: 80Hz-18KHz (± 3dB)


SNR: > 105 DB


Comprehensive distortion: ≤ 0.5%


Working temperature: - 10 ℃ - + 40 ℃


Receiver specifications


Super heterodyne two frequency conversion


If-fre: first if: 110Mhz, second: 10.7MHz


Wireless interface: BNC / 50 Ω


Sensitivity: 12dB / S


Sensitivity range: 12-32 DB μ V


Stray rejection: > 75db


Max output level: + 10dbv


Working voltage and current: 12V 1000mA


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