VR5100M Central controller
VR5100C chairman unit
VR5100D Delegate unit
I. system description
This system is a set of wireless conference system working in UHF frequency band, full digital control, with a variety of speech modes.This system is easy to install, easy to operate, economical and practical, is the first choice of conference engineering.
1.1 functional features
L adopts FM frequency modulation to realize sound signal transmission with high fidelity, high signal-to-noise ratio and no sound delay.The use of the unique new anti-noise single-pointing high sensitivity capacitive microphone core, making the meeting sound almost perfect.
L audio channel and control channel are all transmitted by wireless means, without laying cables, signal coverage area can be moved freely, so that the venue layout is convenient and flexible.
L applies the data communication algorithm independently developed for the conference, so that the system response speed within the signal range is not affected much by the conference microphone.There is no limit on the number of representative and chairman units. Users can increase or decrease as needed.
L with a number of meeting speech mode, such as first in first out, last in first out, limited speech, chairman exclusive.
L ultra-low power consumption, conference microphone base unit can use ordinary no. 5 alkaline battery to obtain 8 ~ 15 hours of continuous speech time, and has the function of automatic shutdown can make the system consume the least power.
L hierarchical menu design, make the operation simple and convenient.And there are power display and undervoltage prompt, frequency channel and signal indication and other functions.
L main control machine adopts all metal structure design, solemn and generous;The conference microphone holder is made of engineering plastic with novel design and built-in antenna.
Main control machine technical indicators:
Power input: DC12V, ≥ 1A
Power consumption: < 6W
Operating temperature -10ºC ~ 40ºC
Main control machine size (W×H×D) : 480mm×50mm (1U, including chassis footpads) ×180mm
Main control machine weight: 1.8kg
L audio channel
Communication mode: UHF wireless mode (one-way)
Number of channels: 4/6/8 channels
Frequency range: 700MHz ~ 800MHz
Demodulation mode: FM
Reception sensitivity: -100dbm
L control channel
Communication mode: UHF wireless mode (two-way)
Number of channels: 60
Frequency range: 916MHz ~ 928MHz
Modulation mode: GFSK
Reception sensitivity: -100dbm
Radiated power: <= 12dBm
Frequency deviation: < 15ppm
Data rate: 4.8 Kbps
Chairman/representative unit microphone technical specifications
Power supply: DC 2.25v ~ 3.25v
Power consumption: <=380mW (speech state)
Operating temperature -10ºC ~ 40ºC
Length of microphone: 400mm
Size (W×H×D) : 150mm×75mm (excluding micrometer bar) ×380mm
Weight: 0.85kg
L audio channel
Communication mode: UHF wireless mode (one-way)
Frequency range: 700MHz ~ 800MHz
Modulation mode: FM
Maximum modulation: 50K
Radiated power: <= 12dBm
Frequency deviation: < 15ppm
Reference speaking distance: 8cm ~ 30cm
L control channel
Communication mode: wireless (two-way)
Number of channels: 60
Frequency range: 916MHz ~ 928MHz
Modulation mode: GFSK
Reception sensitivity: -100dbm
Radiated power: <= 12dBm
Frequency deviation: < 15ppm
Data rate: 4.8 Kbps
Total system parameters
Signal coverage: indoor radius 60 m (excluding use of antenna extenders or antenna amplifiers)
Audio frequency response: 50Hz ~ 15KHz
Total audio gain: <= 20dB
Signal-to-noise ratio: > 85dB
Total harmonic distortion of audio: <= 0.8%