CCTV Modulation Wiring

CCTV Modulation Wiring
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Subject Author Date
CCTV Modulation Wiring Armond Perretta 09-14-2005
Posted by Armond Perretta on September 16, 2005, 10:20 am
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Robert L Bass wrote:
>> petem wrote:
>>> "Armond Perretta" wrote ...
>>>>
>>>> I want to install up to 4 CCTV cameras for home security ...
>>>>
>>>> Question: Is there a "box" into which I can feed the 4 camera
>>>> leads, and from which I can feed the ChannelPlus "A" port, so that
>>>> I can view the CCTV
>>>> camera output on any display device on the network? ///
>>>
>>> a quad will put all 4 cam in one image ...
>>
>> So if I connect 4 cameras to a quad splitter, than run the output
>> through a single-channel modulator to the ChannelPlus distro amp,
>> that will work?
>>
>> Is there a single box that will do this or is the above the simplest?
>
> There is a better solution which will allow you to select
> whichever camera you want to watch from any TV. ChannelPlus
> makes some excellent 4-channel modulators.

I already have a ChannelPlus 5545 modulator feeding VCRs and DVDs to the
ChannelPlus distro amp "B" port. I am trying to get all 4 CCTV cameras to
display via the distro amp on a single channel, and I am trying to do it as
simply (and inexpensively) as possible.

Speco has a quad splitter in the $130 range and a single-channel modulator
in the $80 range that seem OK. Comment?

--
Good luck and good sailing.
s/v Kerry Deare of Barnegat
http://home.comcast.net/~kerrydeare








Posted by Robert L Bass on September 16, 2005, 1:21 pm
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On Fri, 16 Sep 2005 10:20:56 -0400, "Armond Perretta"

> Robert L Bass wrote:
> >> petem wrote:
> >>> "Armond Perretta" wrote ...
> >>>>
> >>>> I want to install up to 4 CCTV cameras for home security ...
> >>>>
> >>>> Question: Is there a "box" into which I can feed the 4 camera
> >>>> leads, and from which I can feed the ChannelPlus "A" port, so that
> >>>> I can view the CCTV
> >>>> camera output on any display device on the network? ///
> >>>
> >>> a quad will put all 4 cam in one image ...
> >>
> >> So if I connect 4 cameras to a quad splitter, than run the output
> >> through a single-channel modulator to the ChannelPlus distro amp,
> >> that will work?
> >>
> >> Is there a single box that will do this or is the above the simplest?
> >
> > There is a better solution which will allow you to select
> > whichever camera you want to watch from any TV. ChannelPlus
> > makes some excellent 4-channel modulators.
>
> I already have a ChannelPlus 5545 modulator feeding VCRs and DVDs to the
> ChannelPlus distro amp "B" port. I am trying to get all 4 CCTV cameras to
> display via the distro amp on a single channel, and I am trying to do it as
> simply (and inexpensively) as possible.
>
> Speco has a quad splitter in the $130 range and a single-channel modulator
> in the $80 range that seem OK. Comment?

OK, gotcha. The disadvantage to splitters is that you don't get
the full image. You get a cropped image of each camera's view.
A multiplexor will allow you to view 4 small images on one screen
but the images may not be good enough and muxers cost more.

A switcher would flip from camera to camera at whatever rate you
set it. These are inexpensive and easy to set up. The down side
is if you dwell too long on one camera someone can walk
unobserved right past another.

For a budget application with only 4 cameras you may still find a
switcher is your best bet. Just set the dwell time short enough.

--

Regards,
Robert L Bass

Bass Burglar Alarms
The Online DIY Store
http://www.BassBurglarAlarms.com


Posted by on September 16, 2005, 6:01 pm
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Their modulator is only channel 3/4, so its up to you, it will put the
video from the quad on channel 3 or 4 selectable.

The quad will work either way. just make sure you get a color model if
they are color cameras.



Posted by Armond Perretta on September 17, 2005, 7:32 am
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cctvbahamas@hotmail.com wrote:
> Their modulator is only channel 3/4, so its up to you, it will put the
> video from the quad on channel 3 or 4 selectable.
>
> The quad will work either way. just make sure you get a color model if
> they are color cameras.

What about:

"Speco Tech Full Range Digital RF Modulator

..Converts any composite signal into a user selectable TV channel . Full
Channel Range: UHF: 14 - 69, Cable: 65 - 94 and 100 - 125 . Digital LED
display and full channel memory safeguards against power outages . Isolated
left/right RCA inputs improve audio performance . Phase-lock loop for
eliminating channel drift . Dimensions: 3 7/8" W x 4 1/8"D x 1 1/2"H" ?

(http://nservices.com/processors.htm)

--
Good luck and good sailing.
s/v Kerry Deare of Barnegat
http://home.comcast.net/~kerrydeare






Posted by on September 17, 2005, 1:05 pm
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I never used it, but since they were talking about cheapest method, i
figured they meant the 3/4 RF mod.

Basically when i go over the cheap one, i go straight up to channel
vision or the like.



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