Home  >  News  
Compare HD Analog Technology
2014-02-23

As HD Analog technology is the trend of the security analog market ,including HD-SDI, AHD, HD-CVI and HD-TVI. While all HD Analog options offer the same basic benefits compared to analog or IP – delivering HD video over standard coaxial cable – formats vary in the resolution, transmission distance, camera compatibilities , and configurability.

Technology 

HD-CVI

AHD

HD-SDI

HD-TVI

Max Resolution (Pixels)

1080p

1080p

1080p

1080p

1920 x 1080 pix

1920 x 1080 pix

1920 x 1080 pix

1920 x 1080 pix

Video Output Quality

(What you see)

Very good in daylight

Good

Very Good

Very Good

Images not as crisp in low light conditions

Images not

as crisp

Colors not as accurate

Sharp images up to 1080p

True colors

Sharp images up to 1080p

True colors

Transmission

Distance

Coaxial Cable

(RG59)

1600’ (720p)

1300’ (1080p)

1600’

492’

1600’

Twisted Pair

(CAT5)

650’

492’

350’

(digital converter

required)

700’

DVR Input

Analog

All analog cameras, limited channels, limited configurations

All analog cameras, limited channels, limited configurations

Limited models, limited channels, limited configurations

All analog cameras, on any channel, in any configuration

Compatibility

HD Analog

Like-branded HD-CVI cameras, on any channel, in any configuration

Like-branded AHD cameras, on any channel, in any configuration

Like-branded HD-SDI cameras, on any channel, in any configuration

Any HD-TVI camera, on any channel, in any configuration

IP

Supported IP cameras, on select channels, in select configurations

N/A

N/A

Supported IP cameras, on 2 channels, in any configuration

DVR Hybrid Capabilities

Limited

configurability

Limited

configurability

Limited

configurability

Yes, unlimited configurability

Format Compatibility

Proprietary technology, only produced by 1 manufacturer, Dahua.

Open

standard, limited manufacturers

Open

standard, multiple manufacturers - are currently exiting the market as alternative HD formats outpace SDI

Open standard, over 100 manufacturer's have launched or are developing solutions using TVI technology