Cameras - Analog
Analog video cameras are by far the most common type of installed technology. Although they got their start back in the days of multiplexers and streaming tape, analog camera technology has improved significantly and today continues to provide an adequate video solution at a very affordable price.
Analog cameras should have a 540 horizontal line rating. Any less than 540 the video quality is not as good as it could be and honestly, a rating greater than 540 lines may aid in improving electrical noise immunity but don't get sucked into believing that 600 line specs will provide any better video quality... it won't.
Additionally, regardless if employing dome or cylindrical style cameras the cost of night vision (infrared) is so negligible that the benefits of recording in pitch darkness warrant no other option. For a side-by-side comparison of day vs. night vision imagery, click here.
Analog video is transmitted from the camera to the DVR with RG-59 coax cable and camera power (12vDC or 24vAC) is separately supplied via a separate pair (usually 18-2) of wires.
Analog cameras should have a 540 horizontal line rating. Any less than 540 the video quality is not as good as it could be and honestly, a rating greater than 540 lines may aid in improving electrical noise immunity but don't get sucked into believing that 600 line specs will provide any better video quality... it won't.
Additionally, regardless if employing dome or cylindrical style cameras the cost of night vision (infrared) is so negligible that the benefits of recording in pitch darkness warrant no other option. For a side-by-side comparison of day vs. night vision imagery, click here.
Analog video is transmitted from the camera to the DVR with RG-59 coax cable and camera power (12vDC or 24vAC) is separately supplied via a separate pair (usually 18-2) of wires.
