Conference Microphone System Uhf Wireless Audio Transmit Chip Module ST-208

Product features:

1. Three marshalling frequency are built-in, one button to adjust. One same frequency range available three receivers use in the same time.

2. Infrared ray synchronization function, one button to connect and lock frequency automatically.

3. Volume of four channels is independent to adjust. Provide 4+1 audio output, each audio volume is independently output.

4. Provide multiple transmitters to choose, conference, handheld and collar microphones can be mixed to use.

5.Backlit LCD display show working station of RF, AF, frequency and channels.

6. Adopt same working frequency for four channels, transmitters can interchange at any time, this greatly enhance operation flexibility.

7. Adopt newest UHF wireless audio transmit chip module IC which has excellent RF and AF performance, provide professional sound experience to customers. Squelch control and digital pilot technology, when transmitter turn off, pilot control will make AF signal to be mute to avoid noise, receiver’s channels also will be mute, this effectively cut off interference signal.

Each channel and frequency range:

Our products provide 500MHZ~900MHZ

Factory default frequency range: 734.950MHz--794.650MHz

CHANNAL A: 0-50 FREQUENCY: 734.950MHZ-749.650MHz

CHANNAL B: 51-100 FREQUENCY: 749.950MHZ-764.650MHz

CHANNAL C: 101-150 FREQUENCY: 764.950MHZ-779.650MHz

CHANNAL D: 151-200 FREQUENCY: 779.950MHZ-794.650MHz

System specifications:

Frequency range: 734~795 MHz

Modulation mode: FM

Frequency interval: 50MHz

Channels: 200

Channel interval: 300 KHz

Frequency stability: ±0.005%

Dynamic range: 100dB

Frequency response: 80Hz-18KHz (±3dB)

SNR: >105 dB

Distortion: ≤0.5%

Working temperature: -10℃ -+40 ℃

Receiver specifications:

Pattern: super heterodyne twice frequency conversion

IF-FRE: First :110MHz, second: 10.7MHz

Wireless interface :BNC/50Ω

Sensitivity :12dBμV(80DbS/N)

Sensitivity range:12-32 dBμV

Stray rejection:>75dB

Max output level :+10dBV

Working power: 12V 1000mA

Transmitter specifications:

Output power: High power: 30mW; Low power: 10mW

Stray rejection:-60dB

Power supply :2 AA batteries

Working duration time :13 hours.

Working distance: ideal condition is about 80 meters, complex environment is about 45 meters.

Package & delivery
Packaging Details: Color box or opp bag for products, high quality carton for shipping.
OEM Package Available
Delivery Time: 2-5 weeks after receiving deposit Depends on product
Express: We have good cooperation with DHL, UPS, FedEx, TNT, EMS etc.
Sea Shipment: FOB Ningbo
Air shipment: FOB Ningbo/ FOB Shanghai

Our Service
1, Fast deliver, Short lead time
2, Provide trade assurance to protect your purchase procedure
3, Offer OEM with your brand
4, Offer sample to test
5, Customization as your requirement
6, QC:products are 100% tested
7. Protect your trade infomation
8. ONE YEAR WARRANTY