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IP - Analogue
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| QED |
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Posts: 8
Joined: 12 May 2008
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Posted: Tue Jun 03, 2008 8:04 am
Post subject: IP - Analogue
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I am interested to see peoples views on here about the IP/Analogue debate and how they see the future of the CCTV industry going.
Please could you give me your opinions?
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| scorpion |
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Posts: 2392
Joined: 26 Mar 2007
Location: Melbourne Florida
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Posted: Tue Jun 03, 2008 8:28 am
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| rory |
Moderator & Founding Member
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Posts: 14216
Joined: 10 Nov 2003
Location: Bahamas
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Posted: Tue Jun 03, 2008 7:19 pm
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First if one can find an Analogue camera, please post the link.
Second, we have a few long threads on this already in the IP forum 
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| scorpion |
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Posts: 2392
Joined: 26 Mar 2007
Location: Melbourne Florida
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Posted: Tue Jun 03, 2008 8:18 pm
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| ak357 |
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Posts: 246
Joined: 16 Nov 2005
Location: Canada
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Posted: Tue Jun 03, 2008 9:26 pm
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| rory wrote: |
First if one can find an Analogue camera, please post the link.
Second, we have a few long threads on this already in the IP forum |
hmm I never heard reg CCTV camera with 1 volt peak to peak
on 75 oms load will be called "digital output"
it is analog output
u can and u do process signal digitally but output is and going to be analog
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| rory |
Moderator & Founding Member
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Posts: 14216
Joined: 10 Nov 2003
Location: Bahamas
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Posted: Tue Jun 03, 2008 9:31 pm
Post subject:
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| ak357 wrote: |
| rory wrote: |
First if one can find an Analogue camera, please post the link.
Second, we have a few long threads on this already in the IP forum |
hmm I never heard reg CCTV camera with 1 volt peak to peak
on 75 oms load will be called "digital output"
it is analog output
u can and u do process signal digitally but output is and going to be analog |
Whatever the output is, the camera itself is still digital.
So please post a link to an analogue camera if you will.
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| scorpion |
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Posts: 2392
Joined: 26 Mar 2007
Location: Melbourne Florida
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Posted: Tue Jun 03, 2008 9:37 pm
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| rory |
Moderator & Founding Member
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Posts: 14216
Joined: 10 Nov 2003
Location: Bahamas
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Posted: Tue Jun 03, 2008 9:42 pm
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| GT_Cameras |
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Posts: 12
Joined: 21 Apr 2008
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Posted: Tue Jun 03, 2008 9:53 pm
Post subject: Re: IP - Analogue
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| QED wrote: |
I am interested to see peoples views on here about the IP/Analogue debate and how they see the future of the CCTV industry going.
Please could you give me your opinions? |
I can't actually post links because I'm apparently at risk of being a crazed spammer, so I'll weigh in on here.
Personally, I don't carry IP/wireless cameras because I don't think they're ethically sound. These cameras run in the ISM band of radio frequencies. Look at this band as being like a freeway - when you get too many cars driving through it, everything slows down to a crawl. The ISM band is slowed down to a crawl because so many 2.4ghz devices (like cordless phones, baby monitors, wireless routers, etc) transmit signals through it. As well, since the ISM band is so common, you don't have to look very hard for schematics (or devices) that will allow you to intercept/jam camera signals. So, ultimately, if you buy an IP/wireless camera you are paying significantly more money for worse quality and less security. Am I missing something here or is that a pretty bad deal?
However, since IP/wireless cameras have such a big market share, it makes sense for big companies and CCTV manufacturers to invest money in research. Therefore, expect better quality, better security and much cheaper prices in the future.....
| rory wrote: |
Whatever the output is, the camera itself is still digital.
So please post a link to an analogue camera if you will. |
I'm picturing this massive machine with a 24 hour reel of film that weighs three tons......
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| rory |
Moderator & Founding Member
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Posts: 14216
Joined: 10 Nov 2003
Location: Bahamas
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Posted: Tue Jun 03, 2008 10:04 pm
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| ak357 |
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Posts: 246
Joined: 16 Nov 2005
Location: Canada
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Posted: Tue Jun 03, 2008 10:13 pm
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| rory wrote: |
| ak357 wrote: |
| rory wrote: |
First if one can find an Analogue camera, please post the link.
Second, we have a few long threads on this already in the IP forum |
hmm I never heard reg CCTV camera with 1 volt peak to peak
on 75 oms load will be called "digital output"
it is analog output
u can and u do process signal digitally but output is and going to be analog |
Whatever the output is, the camera itself is still digital.
So please post a link to an analogue camera if you will. |
Rory would u agree that NTSC is analog system?
yes or no please
just to help u answer
http://en.wikipedia.org/wiki/NTSC
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| scorpion |
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Posts: 2392
Joined: 26 Mar 2007
Location: Melbourne Florida
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Posted: Tue Jun 03, 2008 10:14 pm
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| Quote: |
I am interested to see peoples views on here about the IP/Analogue debate and how they see the future of the CCTV industry going.
Please could you give me your opinions?
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No mention of wireless!
A professional would do a site survey with equipment such as this
Wi Spy
http://www.multitask-computing.co.uk/wispy.html
This would tell him what wattage he would need, and what would be the most effective channel, and what kind of antenna to use such as omni directional, or beam antennas.
Analoge wireless is exactly what you described!!
These tend to be what customers want right off the bat for some reason why I do not know. I stocked them in the showroom, and they flew out of there at 100 miles per hour, until I had more competition with Radiation Shack, and Wally World.
I am penetrating 40 walls, and I want facial recognition, and I do not want the camera to be seen.
What do you mean that I have to change a 9 volt battery everyday?????
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| rory |
Moderator & Founding Member
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Posts: 14216
Joined: 10 Nov 2003
Location: Bahamas
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Posted: Tue Jun 03, 2008 10:18 pm
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That has nothing to do with it.
Point is, there are NO Analogue CCTV Cameras, unless you can find one for us? Where is the link to this Analogue CCTV camera? 
You are confusing video transmission with the camera itself, which are 2 separate things.
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BahamasSecurity.com - Bahamas Real Estate - Bahamas Yellow Pages
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| GT_Cameras |
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Posts: 12
Joined: 21 Apr 2008
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Posted: Tue Jun 03, 2008 11:07 pm
Post subject:
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| ak357 wrote: |
Rory would u agree that NTSC is analog system?
yes or no please
just to help u answer
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Analogue has become industry parlance for wired cameras. We all fall into the trap and use analogue instead of wired.
In camera parlance, analogue means that the camera actually records to film. You know 35mm cameras? That is an analogue camera - you have to put film in it and change it after 24 or 36 exposures. Basically, analogue cameras work because there are three emulsion layers on film. These layers react to one of the three primary colours - the chemical structure of the emulsion layer will change according to the colour of the light actually let in.....
Digital cameras uses imaging sensors to accomplish the same thing. An imaging sensor basically detects colour and translates it into digital information on a pixel by pixel basis.
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| ak357 |
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Posts: 246
Joined: 16 Nov 2005
Location: Canada
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Posted: Wed Jun 04, 2008 12:04 am
Post subject:
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| rory wrote: |
That has nothing to do with it.
Point is, there are NO Analogue CCTV Cameras, unless you can find one for us? Where is the link to this Analogue CCTV camera?
You are confusing video transmission with the camera itself, which are 2 separate things. |
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"Analog (or analogue) television encodes television picture and sound information and transmits it as an analog signal, that is to say: one in which the message conveyed by the broadcast signal is a function of deliberate variations in the amplitude and/or frequency of the signal. All systems preceding digital television, such as NTSC, PAL or SECAM are analog television systems"
http://en.wikipedia.org/wiki/Analog_television
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Composite video is the format of an analog television
http://en.wikipedia.org/wiki/Composite_video_signal
http://service.us.panasonic.com/OPERMANPDF/WVCW484.PDF
Specifications
Video output:VBS 1.0 V [P-P] NTSC composite 75 /BNC connector
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NTSC (National Television System Committee) is the analog television system used in the United States, Canada
http://en.wikipedia.org/wiki/NTSC
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