What is HDCVI ?

HDCVI (High Definition Composite Video Interface) is an over-coaxial-cable analog HD video transmission standard which developed in-house. The technology renders two HD video formats—1080P (1920×1080) & 720P (1280×720) by progressive scanning.

Technical Highlights

• HD Video format
  1920H(1920×1080) & 1280H(1280×720)
• Analog Modulation
  Uncompressed and crosstalk-free
• Transmission over coaxial cable
  Reliable and non-latency point-to-point transmission
• Auto Compensation & Long range transmission
  720P(1280×720): 500m via Φ75-3, 700m via Φ75-5
  1080P(1920×1080): 300m via Φ75-3, 450m via Φ75-5
• Composite video/audio/PTZ signals
  HDCVI composites video, audio and PTZ signals together and have them transmitted over coaxial cable.
• Two-way data transmission

What HDCVI Brings?

• Upgraded to analog HD seamlessly with Low-cost and simple installation value-added solution. Go after       the conventional analog system topology and give a full consideration to users’ operation habit.

• Megapixel & uncompressed image quality —1080P(1920×1080) & 720P(1280×720)
• Long range & non-latency reliable video transmission without additions of relay devices.
• Strong anti-interference capability & solid interface protection. Free of high-frequent electromagnetic           radiation; constant signal transmission
  and display without problems as frame drop and lock loss occurred.
• An open analog HD transmission system established and evolved industry chain developed to sustainably   improve the technical standard

HDCVI VS. HD-SDI

Longer Transmission Distance

Both HDCVI and HD-SDI can transfer HD signal @720p/1080p, but HDCVI has a distinguished advantage at the transmission distance. With general transmission media, HD-SDI reaches 100 meters at most while HDCVI, at least, transmits 500 meters by using 75-3 cable and featuring low signal distortion rate.
Better Anti-Interference Capability
The anti-interference capability of HD-SDI solution is relatively poor when been placed against high-frequent radiation environment, which could lead to higher bit error ratio while the HDCVI adopts low-frequency modulation technology, making it free from the high-frequency wireless electric radiation to ensure stable video transmission at high image quality.

HDCVI VS. IP

Reliability

HDCVI adopts P2P transmission to ensure a smooth and reliable transmission; while the transmission of network camera is based on Ethernet and thus may lead to network jitter and packet loss.
Real-time
The network HD features video buffer technology and the delay is controlled within 300 milliseconds in the general and fair networking environment; However, HDCVI features no latency capability for an outstanding real-time performance.
No Compression
For HDCVI, there is no compression processed to maintain its original effect and thus present in vivid image quality.

Highlights

Lower Cost

Unlike HD-SDI, which posts high demands on cabling and installation; HDCVI solution inherits the same installing means of conventional
analog solutions, which is of great convenience and also decrease the cost.
Smart control
As HDCVI transmits multiple-signal (video/audio and dual-way data) over one cable, it realizes video/audio synchronized transmission and reverse-signal transmission control at the same time, such as PTZ and zoom control; which further simplifies the installation.