HD Analog Cameras, HD-TVI, HD-SDI, AHD
Posted: Thu Jun 15, 2017 3:03 pm
Anyone have experience with HD Analog Camera technologies?
The general consensus here is to ignore or rip out coaxial, and install new IP cameras. While I agree that ethernet is the best, existing cctv installs might have hundreds of feet of coaxial run. It's crazy to only run new ethernet. There's no reason not to use both coax and ethernet.
That being said, there are different HD coax camera technologies. I imagine the video specs for these are not as vetted as NTSC and PAL were. The tech is newer and infrequently used. This raises a red flag. The different technologies seem to be HD-CVI, AHD, HD-TVI, and HD-SDI. All were made recently, I think. Does anyone have opinions or experience with these technologies?
Also, does anyone know of the upper limit for coax resolution? Will HD analog cameras be limited due to coax and physics? IP cameras don't have such a limit, yet.
The general consensus here is to ignore or rip out coaxial, and install new IP cameras. While I agree that ethernet is the best, existing cctv installs might have hundreds of feet of coaxial run. It's crazy to only run new ethernet. There's no reason not to use both coax and ethernet.
That being said, there are different HD coax camera technologies. I imagine the video specs for these are not as vetted as NTSC and PAL were. The tech is newer and infrequently used. This raises a red flag. The different technologies seem to be HD-CVI, AHD, HD-TVI, and HD-SDI. All were made recently, I think. Does anyone have opinions or experience with these technologies?
Also, does anyone know of the upper limit for coax resolution? Will HD analog cameras be limited due to coax and physics? IP cameras don't have such a limit, yet.