DVR for modulated signal?

[Happyhappydog 0]

Hi. I have 4 cameras, and they are modulated to 4 channels into one cable. This cable was distributed into each room. I would like to buy a DVR that can be put in one of my rooms, and record the image with Video Motion Detection. Is there such a product? All DVR I found have individual input for each camera.

 

Thanks.

 

HPHPdog

[Soundy 1]

You only need to post a question once.

http://www.cctvforum.com/viewtopic.php?t=17644

[scorpion 0]

You might have to get 4 VCRs, and have them tuned to each cameras "channel".

 

Then you can take the VCR composite out, and put it in to the DVR input.

 

 

Why not put a splitter on each camera, and run it straight to the DVR before the signal is modulated?

[si_kungs 0]

you can put four demodulator at the end of the wire and tune it to each frequency you have used on your modulator before connecting each output to the dvr

[suky 0]

Hello, If I were you, I would connect each camera to the DVR individually. In that case, it will reduce the signal transmission loss and ensure the high quality picture. A standalone DVR and four cables will meet your need.

 

And if you are going to purchase a DVR, I can show you my advices:

1. H.264 video compression format and high display/record frame rate (30 frames per channel) can ensure the real time and good quality image;

2. Remote access is a must!

3. USB2.0 for Backup;

4. 1TB HDD is nice;

5. Support live view via 3G mobile and Smartphone is better.

 

If you need my help, please let me know! It is my pleasure to be a help!