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China Coal Fifth Construction Co., Ltd. video conference equipment inquiry announcement
TIME:2018-10-24 15:19:17      CLICKS:105

China Coal Fifth Construction Co., Ltd. Video Conference Equipment Inquiry Announcement

    (Purchase number: 20180303)

    Our company needs to purchase a batch of video equipment, the specific requirements are as follows:

    First, the video conference equipment list

    Serial number device name brand model unit of measurement quantity use location

    1 fixed projector BenQ (SenQ) SX920 Taiwan 1 company headquarters 6th floor fourth meeting room

    2 portable projector Epson (EPSON) CB-2265U Taiwan 1 company headquarters 4th floor second meeting room

    3 video conference camera (Tomorrow) VCM-72NDH 1 company headquarters 6th floor fourth meeting room

    4 video conference camera (Tomorrow) VCM-72NDH 1 company headquarters 4th floor scheduling meeting room

    5 mixer (with transmission line) Yamaha

    (Yamaha) MGP16X MGP series new 16-channel professional analog mixer 1 company headquarters 6th floor fourth meeting room

    6 wired microphone ZYUN (tone) L-406 8 company headquarters 6th floor fourth meeting room

    7 wireless microphone NX Nuo

    N818 (1 to 8) set 1 company headquarters 6th floor fourth meeting room

    8 wireless microphone NX Nuo

    NX-980 (1 托 4) set 1 company headquarters 4th floor scheduling meeting room

    Second, the conference equipment details and technical parameters

    No. Product Name Brand Product Model Quantity Unit Technical Parameters and Requirements

    1 Gooseneck microphone ZYUN (tone) L-4068 sets of capacitive heart-shaped pointing; frequency response 100 ~ 8,000Hz; sensitivity -32.5dB (0dB=1V/1Pa, 1KHz); maximum input sound pressure level 108dB (1KHz, THD 1 %); signal to noise ratio > 62dB (1KHz, 1Pa); impedance below 680Ω, unbalanced; package coating black matte baking finish

    2 HD camera (Tomorrow) VCM-72NDH2 table specifications] Image sensor 1/3 inch high quality HD CMOS sensor pixel dynamic image: 16:9 2.07 effective megapixel still image: 16:9 210 million effective pixels; video signal 1080P /60/50/30/25, 1080I/60/50, 720P/60/50/30/25 1080P/30/25, 1080I/60/50, 720P/60/50/30/25 lens zoom 20 times Optical zoom, f=4.7~94mm Horizontal viewing angle 55.4° (W end), 3.9° (T end) Minimum illumination 1.0Lux White balance Auto/Manual focus Auto/Manual aperture Auto/Manual electronic shutter Auto/Manual backlight compensation On/Off Signal to noise ratio > 58dB video interface DVI (HDMI), 3G-SDI image stream dual stream output video compression format H.265, H.264 audio compression format AAC, MP3, PCM network port 100M network port power interface HEC3800 Power socket PTZ parameters horizontal rotation: ±175 degrees; pitch rotation: -30 degrees to +90 degrees horizontal control speed: 0.5-300 ° / sec; pitch control speed: 0.5-125 ° / sec preset speed: level: 300°/sec, pitch: 125°/sec Preset number: 10 users can set preset power adapter

    3 one for four wireless microphones NX-980NX Novo 1 NX-980/981 professional one for four wireless conference microphones. Features: 1. PLL phase-locked loop technology receiver, four-channel independent signal selection system. It can minimize the occurrence of frequency-breaking. 2. Four-channel independent AFS frequency automatic search function, can quickly scan the working environment Minimum frequency and lock. 3. Receiver and transmitter through IR infrared frequency matching technology, one-key synchronization pair code 4. Professional performance level phase locking circuit, with noise lock squelch control and digital pilot technology, when transmitting When the device is turned off, the pilot control mutes the AF signal to suppress noise while muting the corresponding receiver. Guaranteed effective blocking of the signal. 5. Backlit LED display indicates RF and AF signal strength, battery status, channel indication (A/B), frequency, frequency group/channel, etc. 7. Developed the "Audio Reference Compression Expansion" patented technology. It has excellent dynamic response. Excellent sound quality. 8. The NX-980 wireless system is designed for multimedia audio-visual and fixed installation applications, providing the highest reliability, sound quality and transmission. stability. 9. With the high-end NX-981 desktop conference microphone, the system can reach up to four sets without any use (ie 16 conference microphones) NX-980 four-channel receiver

    ■ Working frequency: 740~790MHz

    ■ Microcomputer CPU control

    ■ PLL phase-locked loop frequency synthesis technology

    ■ 4*50 channel free choice, LCD digital display

    ■ Infrared frequency and red flashing light

    ■ S/N signal to noise ratio: >105dB

    ■ T.H.D distortion: <0.5%

    ■ Frequency response: 40Hz-18KHz

    ■ Noise lock squelch control + code navigation lock squelch control

    ■ Audio dynamic expansion and automatic level control circuit

    ■ Four-channel reception (double-tuned high-frequency receive selection)

    NX-981 desktop microphone transmitter

    ■ Working frequency: 740~790MHz with microcomputer CPU control

    ■ PLL phase-locked loop frequency synthesis technology 4*50 channel free choice of multi-function LCD,

    ■ Adopt imported silent voice switch, high-sensitivity condenser pickup to ensure the sound quality of the microphone;

    ■ Unique audio/RF level display, battery voltage display infrared frequency

    ■Adjustable microphone volume, and the level of the LCD display output, it is more upscale

    ■The microphone rod adopts the principle of super dry picking tube and is equipped with a red light ring.

    ■ Frequency stability: ±0.002

    ■ Pickup gain adjustment knob: -20dB to +35dB

    ■ FM maximum modulation frequency offset: ±45KHz RF

    ■ RF output power: 10mW / 5mW

    ■ Higher harmonics: 60dB or more below the main wave reference

    ■ All-aluminum structure base, surface grinding treatment effect, more professional and more durable!

    ■ Battery: 2 AA batteries - can be used continuously for about 8 hours

    4 one for eight wireless microphones N818NX Novo 1 NX-818 professional one for eight wireless conference microphones, 2 handheld, 6 goosenecks

     Features:

    1. PLL phase-locked loop technology receiver, four-channel independent signal selection system. It can minimize the occurrence of frequency-breaking.

    2. Four-channel independent AFS frequency automatic search function, can quickly scan the frequency of the least worrying and lock in the working environment.

    3. Receiver and transmitter pass IR infrared frequency matching technology, one-key synchronous pair code

    4. Professional performance level phase locking circuit, with noise lock squelch control and digital pilot technology, when the transmitter is off, the pilot control mutes the AF signal to suppress noise and mutes the corresponding receiver. Guaranteed effective blocking of the signal of worry.

    5. Backlit LED display indicates RF and AF signal strength, battery status, channel indication (A/B), frequency, frequency group/channel, etc.

    7. Adopted the patented “Audio Reference Compression Expansion” developed by Nuoxun. It has excellent dynamic response. The sound quality is excellent.

    8. The NX-980 wireless system is designed for multimedia audio-visual and fixed installation applications, providing maximum reliability, sound quality and transmission stability.

    9. With the high-end NX-981 desktop conference microphone, the system can reach up to four sets without using it (ie 16 conference microphones)

    NX-818 eight-channel receiver

    ■ Working frequency: 740~790MHz

    ■ Microcomputer CPU control

    ■ PLL phase-locked loop frequency synthesis technology

    ■ 4*50 channel free choice, LCD digital display

    ■ Infrared frequency and red flashing light

    ■ S/N signal to noise ratio: >105dB

    ■ T.H.D distortion: <0.5%

    ■ Frequency response: 40Hz-18KHz

    ■ Noise lock squelch control + code navigation lock squelch control

    ■ Audio dynamic expansion and automatic level control circuit

    ■ Eight channel reception (double tuning high frequency receiving selection)

    ■ Working frequency: 740~790MHz with microcomputer CPU control

    ■ PLL phase-locked loop frequency synthesis technology 4*50 channel free choice of multi-function LCD,

    ■ Adopt imported silent voice switch, high-sensitivity condenser pickup to ensure the sound quality of the microphone;

    ■ Unique audio/RF level display, battery voltage display infrared frequency

    ■Adjustable microphone volume, and the level of the LCD display output, it is more upscale

    ■The microphone rod adopts the principle of super dry picking tube and is equipped with a red light ring.

    ■ Frequency stability: ±0.002

    ■ Pickup gain adjustment knob: -20dB to +35dB

    ■ FM maximum modulation frequency offset: ±45KHz RF

    ■ RF output power: 10mW / 5mW

    ■ Higher harmonics: 60dB or more below the main wave reference

    ■ All-aluminum structure base, surface grinding treatment effect, more professional and more durable!

    ■ Battery: 2 AA batteries - can be used continuously for about 8 hours

    5 wire accessories custom custom 1 batch according to site requirements. Also equipped with 8 microphone line, 15 meter microphone line, 10 meter microphone line

    Second, video conferencing equipment technical parameters

    1. The fourth conference room on the 6th floor of the company headquarters, fixed projector.

    Requirements: Brightness (lumen): 5000 Projection screen size: 40-300 inches Standard resolution: 1024X768dpi Contrast: 3001-5000:1 Display technology: DLP projection lens: F=2.45~3.07, f=15.78 ~ 25.12 Zoom: 1.6 times Screen width to height ratio: 4:3 Projection ratio: 1.41~2.25 Size (mm): 411.4x118.4x267.5 mm.

    2. The fourth conference room on the 6th floor of the company headquarters, portable projector.

    Requirements: Projection screen size: 40-120 inches; brightness (lumen): 3000; standard resolution: 1280X800dpi; 1080P HD resolution; contrast: 1001-3000:1; projection light source: UHE bulb; display technology: three LCD; Projection lens: UHE; Zoom: 1.2 times; Screen width to height ratio: 16:10; Projection ratio: 1610; Gross weight (KG): 3; Size (mm): 292 x 44 x 213 mm.

    3. The fourth conference room on the 6th floor of the company headquarters and the dispatching conference room on the 4th floor, video conference camera.

    Requirements: Image sensor: 1/3 inch high quality HD CMOS sensor; dynamic image: 16:9207 effective megapixels; still image: 16:92.10 effective pixels; video signal: 1080P/6


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