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
