China Wholesale Karaoke Speaker With Wireless Microphone Factory – Professional home karaoke KTV wireless microphone set wireless mic transmitter – Lingjie

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We can normally fulfill our respected consumers with our great excellent, great value and good provider due to we're much more specialist and extra hard-working and do it in cost-effective way for Professional Audio, Active And Passive Speakers, Wireless Microphone For Sale, Our main objectives are to deliver our consumers worldwide with high quality, competitive selling price, satisfied delivery and outstanding providers.
China Wholesale Karaoke Speaker With Wireless Microphone Factory – 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 Karaoke Speaker With Wireless Microphone Factory –  Professional home karaoke KTV wireless microphone set wireless mic transmitter – Lingjie detail pictures


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We support our consumers with ideal good quality merchandise and large level provider. Becoming the specialist manufacturer in this sector, we have attained wealthy practical encounter in producing and managing for China Wholesale Karaoke Speaker With Wireless Microphone Factory – Professional home karaoke KTV wireless microphone set wireless mic transmitter – Lingjie , The product will supply to all over the world, such as: California, Swiss, Hungary, We adhere to client 1st, top quality 1st, continuous improvement, mutual advantage and win-win principles. When cooperation together with the customer, we provide shoppers with the highest high-quality of service. Established good business relations using the Zimbabwe buyer inside the business, we've got established own brand and reputation. At the identical time, wholeheartedly welcome new and old prospects to our company to go to and negotiate small business.
  • This is a honest and trustworthy company, technology and equipment are very advanced and the prodduct is very adequate, there is no worry in the suppliment.
    5 Stars By Olivia from Indonesia - 2018.04.25 16:46
    This company can be well to meet our needs on product quantity and delivery time, so we always choose them when we have procurement requirements.
    5 Stars By Alex from Swiss - 2017.04.18 16:45
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