Frequently Asked Question
How HD Analog Formats Compare
Last Updated 9 years ago
Technology  | HD-CVI | AHD | HD-SDI | HD-TVI | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Max Resolution (Pixels) | Video Output Quality (What you see) | DVR Hybrid Capabilities | Format Compatibility | Proprietary technology, only produced by 1 manufacturer, Dahua - out of China(2) | 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 | ||||
(2) Concern is limited supply options, limited technology options, and lack of competitive pricing
Analysis & Conclusions
Comparing formats across several dimensions that matter most to end users:Resolution
& Image Quality
Winner:
HD-SDI, HD-TVI
Video
Transmission Distance
HD-SDI, HD-TVI
- All HD Analog formats offer cameras that capture up to 1080p resolution.
- HD-SDI and HD-TVI produce sharper images with more accurate colors
Video
Transmission Distance
Winner:
HD-TVI
Camera Selection &
Configuration Flexibility
HD-TVI
- HD-TVI offers the longest transmission without signal degradation across both RG59 and CAT5 cabling.
Camera Selection &
Configuration Flexibility
Winner:
HD-TVI
Cost of
Ownership
HD-TVI
- HD-TVI allows the user to connect to any analog or HD-TVI camera, on any DVR channel, and is the only HD Analog format that supports IP cameras.
- Other formats are limited in both camera compatibility and channel configurations.
Cost of
Ownership
Winner:
HD-TVI, HD-CVI, AHD
HD-TVI, HD-CVI, AHD
- HD-TVI, HD-CVI and AHD cameras and recorders are available at similar costs to the end user.
- HD-SDI is considerably more expensive, with compatibility limitations that significantly increase Total Cost of Ownership (TCO).