China Wholesale Three Way Speaker Manufacturers – Professional home karaoke KTV wireless microphone set wireless mic transmitter – Lingjie
China Wholesale Three Way Speaker Manufacturers – 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
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malfunction symptoms |
Malfunction cause |
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No indication on receiver and transmitter |
No power on transmitter, receiver power is not connected properly |
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The receiver has no RF signal |
The receiver and transmitter frequency bands are different or out of the acceptable range |
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There is radio frequency signal, but no audio signal |
The transmitter microphone is not connected or the receiver squelch is too deep |
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Sound guidance circuit malfunction |
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Setting silent mode |
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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 |
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Audio signal distortion |
Transmitter modulation frequency deviation is too large, receiver output electrical Level is too large |
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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. |
Product detail pictures:
Related Product Guide:
We constantly think and practice corresponding to the change of circumstance, and grow up. We aim at the achievement of a richer mind and body along with the living for China Wholesale Three Way Speaker Manufacturers – Professional home karaoke KTV wireless microphone set wireless mic transmitter – Lingjie , The product will supply to all over the world, such as: New Orleans, Bahrain, Nigeria, As a way to use the resource on the expanding info in international trade, we welcome prospects from everywhere on the web and offline. In spite on the high quality objects we offer you, effective and satisfying consultation service is supplied by our qualified after-sale service group. Item lists and in depth parameters and any other info weil be sent to you timely for the inquiries. So you should make contact with us by sending us emails or call us when you've got any questions about our organization. ou could also get our address information from our site and come to our enterprise. We get a field survey of our merchandise. We're confident that we are going to share mutual accomplishment and create solid co-operation relations with our companions within this market place. We're seeking forward for your inquiries.
By Helen from Benin - 2017.11.12 12:31
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.
By Eartha from Israel - 2018.05.22 12:13
