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HD-CVI Versus HD-SDI and IP Cameras

Posted by on 9/26/2015 to Learning Center
HD-CVI Versus HD-SDI and IP Cameras

HDCVI VS. HD-SDI

Longer Transmission Distance.

Both HD-SDI and HDCVI can transfer HD video @720p/1080p, but HDCVI currently has the distinct advantage of transmission distance. HD-SDI in general transmission of media reaches 100 meters at most, while HDCVI can transmit 500 meters by using 75-3 cable and offers low signal distortion rate.

Figure 1 Transmission Distance Differences

HD-CVI offers better Anti-Interference Capability

Anti-interference capability found in HD-SDI solutions is relatively poor when installed in high-frequent radiation environments. This could lead to higher bit error ratios. HDCVI however, adopts low-frequency modulation technology, which eliminates high-frequency wireless electric radiation that ensures stable video transmission at a high image quality.

Figure 2 Anti-Interference Capability

HDCVI VS. IP

Reliability

HDCVI uses P2P transmission to ensure a reliable and smooth transmission. IP network cameras use Ethernet for transmission and thus may lead to network jitter and packet loss.

Real-time

Network HD uses video buffer technology and the delay is generally controlled within 300 milliseconds within a common and fair networking environment; However, HDCVI has no latency capability which offers an outstanding real-time performance.

No Compression

HDCVI does not compress video at the camera to maintain its original effect and therefore presents vivid image quality.

Figure 3

Highlights

hdcvi vs HDsdi

Lower overall Cost

Unlike HD-SDI, which requires higher demands from cabling and installation; HDCVI solution can use the same coax cabling in place and often used by conventional analog solutions, which offers a great convenience and also helps to decrease cost.

Smart control

HDCVI is able to transmit multiple-signals (video/audio and dual-way data) over one coax cable, it allows for video/audio synchronized transmission as well as reverse-signal transmission control; which further simplifies the installation.

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