MK-138_Taiwan shangbang Electronics Co.,Ltd.

Wireless mic

MK-138

A wireless receiver parameters

- Receiving frequency FrequencyRanges: UHF645-693MHz
- Frequency Stability Frequency Stability: ± 0.002% (15ppm with superior quartz crystal locked)
- Sensitivity Sensitivity (peak deviation): 10μV
- Ratio:> 8odB
- Mirror-interference ratio P / N Ratio:> 80dB
- Noise ratio S / N Ratio:> 90dB
- Expansion ratio Dilation Ratio: 1: 2
- Audio output AF Output Voltage: Adjustable 0 ~ 300mV
- Receiving Channel Channels: 2-way
- Output Interface Output jack: 6.3 unbalanced mixed mouth
- Power supply voltage Power Supply: DC 13V-500mA (50Hz)
- Power consumption Power Supply: 6W
- Antenna Antenna: External Antenna
- Kinetic energy range Dynamic frequency range:> 100dB
- Comprehensive distortion T.H.D: <0.5%
- Operating temperature Temperature Range: -10 ℃ ~ 50 ℃

2, wireless microphone parameters

- Transmit frequency FrequencyRanges: UHF645-693MHz
- Frequency Stability Frequency Stability: 0.002% (15ppm with superior quartz crystal locked)
- Transmit Power RF Power: 30mW
- Current consumption Cuttent Consumption: <40dB main wave
- Standard Modulation Mode: FM FM
- Tune skewness Deviation Range: ± 20KHz
- Compression ratio Compress Ratio: 2.1
- Pickup Microphone Head: super-cardioid Dynamic
- Battery Battery Type: two AA 1.5V alkaline batteries
- Antenna Anternna: External Exterior Antenna
- Frequency Response Frequency Response: 50Hz ~ 15KHz
- Effective distance Receiver distance: 80 meters (ideal environment)

• Spacious UHF frequency transmission, the system uses the UHF UHF transmission segment, between 740MHZ-790MHZ frequency can be selected (the actual subjects to determine the frequency of use specified region). Using UHF band transmission can better solve the VHF (160MHZ-260MHZ) band "traffic jam band" and a variety of wireless microphone interference problems exist. Microcomputer CPU control, the entire system is controlled by a microcomputer hardware circuits can be selected frequency, display, transmit frequency data to the microphone and other treatment, the traditional model is not easy to achieve a variety of functions to achieve.

• Digital display, dual-screen digital display, all control channels can be displayed in the LED, easy to control the operation of the system.

• digital frequency synthesis technology, the system oscillation mode using digital frequency synthesizer, with respect to the quartz-controlled wireless system, has a higher frequency stability, superior frequency selection characteristics can be achieved in a multi-channel system, the user can when the electromagnetic environment, optionally a clean, non-interfering frequency.

• Infrared data transmission frequency synchronization settings, adjust the receiver receives the channel, the channel is set to pass the microphone data with an infrared mode that microphone transmitter frequency and receiver synchronization.

• From Smart Mute to wake up dormant state within a few seconds can be free to switch, energy saving and thoroughly played the role of preventing the whistle, a microphone for a long time to solve the drawbacks of starting power, allowing users to sing at the same time passion , keen characteristics can feel her use.

• Intelligent power management system, equipped with high-capacity rechargeable lithium battery is fully charged any time the microphone working condition, allowed to have superior battery life

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MK-138