HD-AHD Security Cameras
What are AHD or HD-AHD Security Cameras?
Analog High Definition Security Cameras, they are just
like Analog CCTV security cameras, better quality and higher resolution image.
They might not work with Analog DVR; Some
AHD cameras have a button or knob to
switch to Analog mode. AHD security
cameras will not work with HD-TVI DVR, HD-CVI DVR or NVR.
Analog High Definition Security Cameras are recommended to be used when upgrading from an Analog system to
an inexpensive high-definition system.
Analog and AHD cameras use same
cables RG59/RG6 and BNC connectors. Baluns can also be used with Cat5/Cat6 cables.
http://www.dvrunlimited.com/a-hd
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