3G/4G transmission system
Adopts COFDM modulation system, with excellent diffraction ability and penetrability. Provides multiplexing frequency selection network technology to avoid the interference effectively. Offers broadcast quality image transmission at the speed of 300km/h. Presets multiple channels; simple frequency adjustment. 50~200mw transmitting frequency, for both analog and digital regulating. 3km transmitting distance within-visual-range.
|Terminal||Video code||H.246 Adopting network self-adaptive dynamic recovery technology. Video bit rate: 500kbps-5Mbps|
|Audio code||Sampling frequency: 48k；Quantification: 6bit；Compression bit rate: 128k；Compression format: MPEG-1 layer2；|
|Transmission mode||CDMA EVDO, UMTS, TDD-LTE, FDD-LTE, HSPA+, HSUPA, HSDPA, WiMAX, Wi-Fi802. 11a/b/g/n, BGAN|
|Video format||1080i； 1080p； 720i； 720p； 576i； 480i； Sampling method: 4：2：2|
|Video/audio input||Video: one channel HD-SDI/SD-SDI/CVBS self-adaptive input, 75ohm，BNC interface.|
|Transmission interface||Common USB interface, host working mode.|
|System latency||About 7s||About 5s||About 2s|
|Server||Video decoding||H.246 Adopting network self-adaptive dynamic recovery technology. Video bit rate:500kbps-5Mbps|
|Audio decoding||MPEG-1 layer2； Sampling frequency: 48KHz|
|Failure process||Keep the last frame image after cutoff. When image decoding is not normal, can choose mosaic or static frame mode.|
|Video format||1080i； 1080p； 720i； 720p； 576i； 480i；|
|Video&audio output||One channel composite video output(CVBS):(75ohm, BNC interface*1) Two channel high/standard definition self-adaptive digital SDI video output:(75ohm, BNC interface*2) One group analog stereo output: (3 pin Cannon*2) One channel embedded digital audio output: (75ohm, BNC interface) One channel AES/EBU digital audio output: (3 pin Cannon*1) Notes: when decoding, all interfaces have signal output at the same time.|
|Encryption||ASI input interface supports AES 128bit encryption function, it’s able to open or close the encryption function|
|Physical property interface parameters||Size||Black aluminum alloy shell, water-proof and dust-proof design, good heat dissipation. Camera back buckle or camera base design. Terminal: 185mm*120mm*58mm (H)；|
|Power supply||Terminal: battery supply or DC-12V 15W; Server: AC100-240V 50Hz/60Hz 40w|
|Working condition||Terminal: 1.5Kg(without battery); Server: 3Kg|
|Video interface||Working temperature:0-40℃; Storage temperature: -20-70℃; Relative humility: <95%; No condensation.|
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Camera intercom system Adopts COFDM modulation system, with excellent diffraction ability and penetrability.
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Add: Room 501, East unit 1, Building 8, No. 316 Lianhua Street, High-Tech District, Zhengzhou City, Henan Province, China