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Stone Sues
I just bought a new security camera system that uses the 420tvl quality. I also bought a DVR that has a 500gb hard drive and a 264 compression rate. I'm just wondering how many hours of video I can hold with the DVR that I have. Thank you!!
Answer
Read the DVR manual. "420 TVL" (horizontal lines) is standard definition video. h.264 is not a compression "rate" but a standards based set of rules that allows for different compression amounts.
http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC
If you select (in the DVR options) the high compression option (low quality), then 500 gig and a single standard def camera will likely provide lots more than 90 days of video. If you select low compression (high quality), then 30-60 days is probably in the ballpark.
The camera is standard def. Just because the video is recorded and compressed using h.264 does not make the video "high definition". High def video would use a camera providing 720 or 1080 horizontal lines of video resolution into the h.264 compression...
Read the DVR manual. "420 TVL" (horizontal lines) is standard definition video. h.264 is not a compression "rate" but a standards based set of rules that allows for different compression amounts.
http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC
If you select (in the DVR options) the high compression option (low quality), then 500 gig and a single standard def camera will likely provide lots more than 90 days of video. If you select low compression (high quality), then 30-60 days is probably in the ballpark.
The camera is standard def. Just because the video is recorded and compressed using h.264 does not make the video "high definition". High def video would use a camera providing 720 or 1080 horizontal lines of video resolution into the h.264 compression...
What is a good home security camera system?
Cline
I am looking for an home security camera sytem that I could link with my tv on it's own channel.
Any suggestions?
Answer
You can do this a couple of different ways:
Method 1) Wireless cameras, transmitting to a Receiver. From the receiver run the signal into a modulator, which will output the video as an actual TV channel. You'd need to add the signal onto your video network using a splitter/combiner.
Method 2) Wireless cameras and receiver, and connect the output from the receiver to an unused video input on your TV. View the cameras by selecting the correct input using your TV remote. This is cheaper and simpler than Method 1.
Keep in mind that the first method using modulation can have problems. The quality of the pictures may be poor, due to interference from nearby channels on your TV network.
The second method is almost foolproof, since you're using the "raw" signal straight out of the receiver.
Good luck!
You can do this a couple of different ways:
Method 1) Wireless cameras, transmitting to a Receiver. From the receiver run the signal into a modulator, which will output the video as an actual TV channel. You'd need to add the signal onto your video network using a splitter/combiner.
Method 2) Wireless cameras and receiver, and connect the output from the receiver to an unused video input on your TV. View the cameras by selecting the correct input using your TV remote. This is cheaper and simpler than Method 1.
Keep in mind that the first method using modulation can have problems. The quality of the pictures may be poor, due to interference from nearby channels on your TV network.
The second method is almost foolproof, since you're using the "raw" signal straight out of the receiver.
Good luck!
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