China Wholesale Column Speaker Suppliers – Professional home karaoke KTV wireless microphone set wireless mic transmitter – Lingjie

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We now have our own gross sales team, style and design workforce, technical crew, QC workforce and package group. We now have strict quality manage procedures for each system. Also, all of our workers are experienced in printing industry for Entertainment Center With Built In Speakers, 4 Channel Power Amplifier, Pro Speaker, We just not only deliver the high-quality to our customers, but far more even important is our greatest service along with the competitive price tag.
China Wholesale Column Speaker Suppliers – Professional home karaoke KTV wireless microphone set wireless mic transmitter – Lingjie Detail:

System indicators

Radio frequency range: 645.05-695.05MHz (A channel: 645-665, B channel: 665-695)

Usable bandwidth: 30MHz per channel (60MHz in total)

Modulation method: FM frequency modulation Channel number: infrared automatic frequency matching 200 channels

Operating temperature: minus 18 degrees Celsius to 50 degrees Celsius

Squelch method: automatic noise detection and digital ID code squelch

Offset: 45KHz

Dynamic range: >110dB

Audio response: 60Hz-18KHz

Comprehensive signal-to-noise ratio: >105dB

Comprehensive distortion: <0.5%

Receiver indicators:

Receiving mode: double-conversion superheterodyne, dual-tuning true diversity reception

Oscillation mode: PLL phase locked loop

Intermediate frequency: the first intermediate frequency: 110MHz,

The second intermediate frequency: 10.7MHz

Antenna interface: TNC seat

Display mode: LCD

Sensitivity: -100dBm (40dB S/N)

Spurious suppression: >80dB

Audio output:

Unbalanced: +4dB(1.25V)/5KΩ

Balance: +10dB(1.5V)/600Ω

Power supply voltage: DC12V

Power supply current: 450mA

Transmitter indicators: (908 launch)

Oscillation mode: PLL phase locked loop

Output power: 3dBm-10dBm (LO/HI conversion)

Batteries: 2x“1.5V No. 5”batteries

Current: <100mA(HF), <80mA(LF)

Use time (alkaline battery): about 8 hours at high power

Simple malfunction treatment

malfunction symptoms

Malfunction cause

No indication on receiver and transmitter

No power on transmitter, receiver power is not connected properly

The receiver has no RF signal

The receiver and transmitter frequency bands are different or out of the acceptable range

There is radio frequency signal, but no audio signal

The transmitter microphone is not connected or the receiver squelch is too deep

Sound guidance circuit malfunction

Setting silent mode

Audio signal background noise is too large

Transmit modulation frequency deviation is too small, receive output electrical Level is low, Or there is an interference signal

Audio signal distortion

Transmitter modulation frequency deviation is too large, receiver output electrical Level is too large

The use distance is short, the signal is unstable

The transmitter setting power is low, and the receiver squelch is too deep.

Improper setting of receiver antenna and strong battery interference around.


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China Wholesale Column Speaker Suppliers –  Professional home karaoke KTV wireless microphone set wireless mic transmitter – Lingjie detail pictures


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We strive for excellence, services the customers", hopes to be the top cooperation team and dominator business for personnel, suppliers and prospects, realizes benefit share and continual promotion for China Wholesale Column Speaker Suppliers – Professional home karaoke KTV wireless microphone set wireless mic transmitter – Lingjie , The product will supply to all over the world, such as: Hyderabad, Israel, Munich, We provide good quality but unbeatable low price and the best service. Welcome to post your samples and color ring to us .We will produce the goods according to your request. If you are interested in any products we offer, please feel free to contact us directly by mail, fax, telephone or internet. We are here to answer your questions from Monday to Saturday and looking forward to cooperating with you.
  • This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.
    5 Stars By Victoria from Pakistan - 2017.12.02 14:11
    Cooperate with you every time is very successful, very happy. Hope that we can have more cooperation!
    5 Stars By Polly from Myanmar - 2018.06.21 17:11
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