Micro không dây khoảng cách xa CX-820
★ True diversity performance characteristics:
★ UHF band, PLL digital frequency synthesis.
★ Adopting self-developed and unique high-sensitivity true diversity selection circuit, each microphone signal has dual circuit reception It can effectively reduce the occurrence of frequency interruption within the usage range and improve the usage distance
★ The receiver has a built-in antenna amplifier circuit, which makes the receiving range longer and more stable
★ High power transmitter design Achieve the optimal ratio between power consumption and continuous usage time
★ Specially designed four reinforced antennas for more stable reception distance and longer signal transmission distance
★ It has independent output (XLR) and mixed output (6.3mm), making it easy to connect audio processing and amplifier equipment.
★ The operating frequency range of the system has been compared and optimized, adopting a narrow bandwidth design with different frequencies for the left and right channels Effectively reduces noise interference outside the working range
★ Infrared frequency matching, interchangeable transmitters, simple operation, and advanced functions.
★ Diversity channel A/B switching display
★ Specially designed for school playgrounds, large and medium-sized sports halls, etc. that require long-distance communication The standalone version of the system can achieve an effective usage distance of 1500 meters in the optimal usage environment No need to install any amplifier
★ Each with 100 channels and a total of 200 channel selections, the LCD display screen can simultaneously display channel numbers and operating frequencies.
★ Equipped with 8-level RF level display, 8-level audio level display, channel menu display, and mute display;
★ Adopting secondary frequency conversion receiving technology, it has super strong signal reception capability and a wireless range of up to 1500 meters.
★ Strong anti-interference ability, which can effectively suppress external noise interference and co frequency interference;
★ Rich mid frequency, sound with magnetic and mixed sense, is the essence of vocal microphone sound quality.
★ The stacker can be used in 4 sets simultaneously.
Receiver specifications:
Oscillation mode: PLL phase locked frequency synthesis
RF stability: ± 0.005% (-10~50 ℃)
Working frequency band: Left CHA: 640-648MHz
Right CHB: 665-673MHz
Channel spacing: 250KHz
Sensitivity: When the offset is equal to 25KHz input -95dBm, S/N>80dB
Maximum offset: ± 48KHz
Comprehensive S/N ratio:>102dB
Comprehensive T.H.D:<0.5% @ 1KHz
Frequency response: 60Hz~15KHz
Maximum output voltage: 0dbV@45KHz
Output sockets: XLR balanced and 6.3 unbalanced
Volume output adjustment: potentiometer type
Power supply: DC12~15V/1000mA
Transmitter specifications:
Tube body material: All aluminum alloy tube body, surface treated with oxide sandblasting and hardening
Oscillation mode: PLL phase locked frequency synthesis
Working frequency band: 640-673MHz
Frequency adjustment: infrared frequency modulation/manual adjustment
RF power: approximately 40mW
Pickup head: dynamic coil type
Battery used: 18650 lithium battery

