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Bardl professional True Diversity wireless microphone US-232

US - 232 system is a suitable for use in professional stage singing new digital pilot wireless microphone, using many of the leading industry of new and high technology design in one: ultra-high frequency (UHF) transmission, diversity reception, high-speed CPU control, digital pilot, liquid crystal display, PLL phase-locked loop technology, noise detection, etc., has 200 frequency points is adjustable, infrared frequency on the advantages of easy to operate.

Quantity:
  • US-232
  • Bardl

Bardl US-232 wireless microphone system documentation


US - 232 system is a suitable for use in professional stage singing new digital pilot wireless microphone, using many of the leading industry of new and high technology design in one: ultra-high frequency (UHF) transmission, diversity reception, high-speed CPU control, digital pilot, liquid crystal display, PLL phase-locked loop technology, noise detection, etc., has 200 frequency points is adjustable, infrared frequency on the advantages of easy to operate.

Bardl True Diversity wireless microphone.jpg



The characteristics,


(1) Spacious UHF frequency transmission: The system USES UHF(ultra-high frequency) band for transmission, and the frequency can be optional between 640MHz and 690MHz (the actual frequency shall be determined according to the provisions of the country where the system is used).

UHF band transmission can better solve the "frequency jam" and various electrical interference problems in the VHF band (160-260mhz) wireless microphone. Users can choose the required clean frequency points at their own will.


(2) Microcomputer CPU control: the entire hardware circuit of the system is controlled by a microcomputer, which can be used to select frequency, display, mute lock, battery capacity monitoring and other processing, so as to achieve various functions that are difficult to achieve in traditional models.


(3) digital pilot technology is built on the basis of infrared technology of frequency, every time the receiver and transmitter infrared on frequency, by wireless microphone receiver in the chip will be a completely new set of only the identity of the ID code sent to the receiver chip, the synchronous change receiver transmitting frequency at the same time, also synchronize the identity ID code and lock, the wireless microphone is the unique ID code as the signal recognition.

At this point, other frequency waves cannot interfere with the microphone, even in normal use, even at the same frequency.


(4) LIQUID crystal display adopts high-performance liquid crystal for display. All control menus can be displayed on the liquid crystal screen to facilitate the control of the system. The contents that can be displayed include: frequency, mute level, radio frequency signal level, audio level, low power warning, etc.


(5) 200 frequency points are adjustable: the system has 200 channels with 250KHZ channel frequency interval. The system can also be manually tuned by the user. The handheld microphone can realize frequency synchronization with the receiver through infrared frequency.


(6) PLL frequency locking: The system adopts PLL phase locked loop design. Compared with quartz controlled wireless system, it has higher frequency stability and excellent frequency selection characteristics, and can realize multi-channel and multi-functional professional functions in one system.


(7) Simultaneous use of multiple systems: Multiple US-232 systems can be used in the same venue, and each system can be set to different frequencies.


(8) diversity reception technology with high reliability: the real diversity design, using two completely independent receiver circuit, receiving rf signal from the transmitter respectively, compare two signal intensity, time and switch to the highest receiver signal strength, make sure the system time gating is the best in the signal channel, in order to avoid a radio-frequency signal multipath transmission effect, and get the best signal-to-noise ratio.


(9) Noise detection and noise suppression function: The noise detection part constantly analyzes the quality of the signal to distinguish the noise and the required signal. When the noise is greater than the signal, the audio output is quickly cut off to effectively reduce the noise caused by RF interference in the environment.


(10) : low battery warning function handheld wireless microphone and pocket projector LCD screen have four battery capacity, according to the can real-time display of battery capacity, when the battery capacity is only one case, LCD screen beside the red light began to shine, to alert users to the battery has been in a state of low power, capacity is insufficient to support half an hour, users should replace the battery quickly at this time.

At the same time, the receiver will also appear low power warning display.


(11) Audio simultaneous output function: The audio output interface has a three-pin XLR balanced output and a 1/4 inch unbalanced headphone plug, which can be connected to different external devices at the same time.


(12) Modular design: Part of the microphone modular design, can be easily configured with different sound quality microphone, to adapt to different applications.


Ii. Technical parameters


(1) Comprehensive characteristics


Rf range: 640MHz-- 690MHz


Modulation: FM


Mode of oscillation: PLL


Offset: ±48KHz(with compression extension and automatic volume limiting circuit)


Channel width: 250KHz


SNR S/N: >55dB


Distortion: < 0.3% (1KHz, A weight)


Frequency response: 50Hz~14KHz±3dB


(2) US-232 receiver


Receiving mode: automatic message selection receiving


Mode of oscillation: PLL


Sensitivity: 5dBuv


Harmonic interference ratio: >80dB


False noise ratio: >70dB


US - 232.


(3) US-232H handheld transmitter microphone


Transmission power: 10mW


Maximum input sound pressure: 130dB


Microphone head: Capacitor type, moving coil type (optional)


Use battery: AA battery *2


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(4) US-232T Fanny pack transmitter


Transmission power: 10mW


Mode of oscillation: PLL


Microphone head: capacitive


Directivity of sound head: omni-directional, cardioid, hypercardioid (optional)


Sound head Wearing mode: Tie-clip type, head-wear type (optional)


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