4 replies to this topic

[thaivctv]

Hi all members

Now, I have one RF cable in (Assume that RF level is enough).

I want to view all channels in our CATV system (64 channels) at the same time to monitor them, the easy way which everybody know is: use RF spilitters and 64 TV

I read somewhere that there are some kind of TV or a solution allow us to watch many TV channels in a single TV

Anyone have information? or solution to help me don't need to use...64 TV

Thanks

Edited by thaivctv, 13 May 2012 - 07:29 PM.

[thaivctv]

nobody can help me?

[Dak]

You are talking about watching all 64 channels at one time in little boxes on your screen?
If the input is at RF, and is just 64 channels of analog TV you will need to have each channel
demodulated. That requires a tuner for each channel!
And then each would have to be re-modulated and mixed with 63 other inputs on separate lines of video. Such a device would be expensive as *****.

Or the device would have to demodulate all channels and perhaps then be digitized, then output to a monitor.
That is getting a little cheaper, but not much.
.
Or it could take in all the inputs from a digitized stream already and output that to a monitor, but that requires access to those streams provided that you have them in the first place.

Of course there also has to be software to do it too.

It can be done, but how much are you willing to pay?

Short story is that I have not heard of any thing that does this at RF.

Anybody else?

Dak

[cypherstream]

You could search for a video multiplexer for survellance. Maybe something like this would work?
http://www.pelikanca...ikancam/pqm.htm

4 of those connected to 4 big monitors with HDMI to DVI or straight DVI if the TV or monitor has that.

So you would have to get baseband video to it, split it off somewhere run coax to BNC into these things if your already putting this IN the headend. But sounds like you have 1 RF cable in, looks like you will need 64 digital boxes each provisoned and tuned to a channel to get composite video out (16 for each one of these video multiplexer's). Yikes! Power, heat, RF levels, inventory, provisioning, space considerations, cabling... surely not an integrated solution you were thinking of.

If your in the central office but like in another area or floor of the building, and running 64 coax from the headend portion of the building is too much, you could always multiplex 16 baseband video signals over a single mode fiber. Then you just have to run 4 fibers to your office or callcenter or whatever in the building where you can demultiplex back to baseband video to run into these multiplexers.
http://comlaninc.com...r/id/10/cl-1632

Or wait better yet put the multiplexer in the headend cabled up there, and run some kind of DVI or HDMI to fiber and run ONE cable per TV (16 channels) to your office or call center where you hang the monitors on a wall or arm to monitor everything. This solution still uses 4 fibers for 4 TV's for 64 channels. But it centrializes the multiplexers and all 64 cables in the headend as long as you have rack space or an area to put this stuff.
http://www.multidyne...m?ProductID=235

Now if this is in a different physical location completely, then I don't know!

Edited by cypherstream, 25 May 2012 - 04:56 AM.

[thaivctv]

Yes, all of my channel is analog channel

Thanks Dak and cypherstream, I read both of your comment carefully and now I understand what you have said.

Thanks for support and great room

Edited by thaivctv, 29 May 2012 - 12:24 AM.