Відео

There's no particular channel I'm aware of. Just let google be your friend or search UA-cam. All the best. Henry

Hi there Mike. We ensure customers are fully aware of the functionality of our Automotive Number Plate Recording cameras. We have actually moved on a little since this video was made and are now on our third generation of camera. The camera is designed to let you record automotive number plates during the day or at night on a HD analogue CCTV system. It is also not affected by headlights at night. With conventional day night cameras the number plates tend to bleach out at night leaving a white rectangle an headlights tend to flare the camera causing you to lose number plates. It has proved a very cost effective way for people to capture reflective number plates on their CCTV systems.

Hi there. I would not recommend using CCA or copper clad aluminum cable. Not only does it break easily when making connections but it doesn't perform as well as pure copper cable when it comes to this CCTV application.

The IR range is an entirely made up number which has not relation to the effective range of a camera. The range is dictated by the lens / angle of view. The smaller the number, the wider the angle of view and the shorter the range. So a 3.6mm lens will have an angle of view of around 75 degrees. Effective range maybe 3-4 metres ?

Thanks you saved me from getting deceived

It depends on the distance between the camera and the DVR / power supply. You might get away with 2 pairs of wires for the 12 volt power, 1 pair of wires for the video baluns and one pair of wires for the audio connection.

With our DVR recorders you can set up each system in the normal way then use either our mobile App or computer programme to view feeds from multiple systems on the same screen at the same time. Not all DVRs will allow this.

Hi there If you use our current HD Hybrid DVRs shown here... www.cctv42.co.uk/shop/dvr-recorders/ ...you can then access them using a free CMS software program which we provide downloaded onto either your PC or MAC. This allows feeds from different DVRs to be shown on the same screen. There is also a mobile App to do the same as well.

Hi there. Without seeing the installation it is impossible to say what's causing your problem. I would start by checking the individual components on a short test length of cable. I would also use a single pair for video rather than doubling up, you need to triple up on the power to avoid voltage drop over longer distances. Check for outside sources of interference, look at the camera power supply, the cable used (is it pure copper solid uniform twisted pair), the connectors (many so called baluns are just connectors with no internal components), and so on.

Then why not say on the box these cameras are only designed to cover short distances up a couple of metres (in standard definition) rather than advertising distances or 30 or 40 metres. The result is an entire industry convinced you can have wide angle AND high levels of detail capture. Although we only supply equipment and don't install we still offer surveys / advice online to make sure people buy the right cameras an install in the correct location. Only this week I was speaking to a farm that had been quoted for 2.8mm lenses following an on site survey. The shortest distances involved were around 12-15m, the longest 60m. This was filmed some time ago using standard definition equipment but our rule of thumb with HD1080P (a good balance between HD image quality and hard drive space preservation) is that you want to film a maximum 6m to 8m across the screen (ideally 6m) in order to allow identification of unknown people. The narrower the better. The single biggest mistake people make with CCTV is using wide angle cameras thinking they are covering large areas when in fact they are covering nowhere properly. Far better to target key areas and get great detail in each one. You only need a single high quality image to allow identification. With modern DIY CCTV kits like Arlo, Nest, Netamo, Ring etc the problem is even greater as they use ultra wide angle 120 degree lenses that spread pixels even wider even quicker rendering them useless at detail capture.

Handling the video feed from 4 cameras down 1 piece of CAT5e cable works best when the cameras are close to each other making connections easier. You could theoretically cut into the cable along it's length to use one of the twisted pairs for a camera but it's harder. The cameras would need to be powered independently from the CAT5e cable, you couldn't use it to handle multiple video signals AND power the cameras.

The equipment is from CCTV42.co.uk The video was made some time ago now and the current equipment from CCTV42 gives much superior results but the principles remain the same.

No, IP cameras and HD analog cameras are not compatible.

You can't supply power to 4 cameras and send video back to the DVR using a single length of CAT5e. You would have to power the cameras locally then just use the CAT5e for video with 1 pair of wires to each camera.

Hi there Dave. This would be a possible solution for up to 4 cameras powered locally (ie. not using the Cat5 cable) where you then want to send the video signals back to a DVR. If the Cat5 cable isn't also being used to provide power then you can send up to 4 video signals down a length of Cat5 cable with 1 pair of wires used for each camera.

Got it, thanks so much! I know this video was posted 10 years ago so I thank you for continuing to monitor your video and I appreciate your quick reply!

@@diydaveman Our pleasure :-)

Hi there. We wouldn't recommend running 2 cameras using 1 length of Cat5 cable if you are using that cable to power cameras. There is a danger of voltage drop if you only have 1 pair of wires for the 12 volt power, hence why we suggest using 3 pairs for the 12 volt power.

IP cameras don't use BNC fittings they would use something like an RJ45 connector so this method wouldn't be applicable.

Sorry you failed to get the message on this one. It's one of the most important things to understand when buying CCTV cameras. In a nutshell the IR "range" should not be taken to mean the effective range of the camera. The optical range of the camera will tell you this but you will rarely see optical range mentioned. It doesn't even mean the night time range of the camera. IR range is just one of the many fluffy phrases used by people selling CCTV who don't really understand the basic principles.

@@cctv42 oh sorry. your point was that there's no point talking about it. yeah massive fail on my part there. i was looking for someone talking about frequency range. i'll look up scientists rather than salesmen. sorry the A.I tried to sell you to me. it's not your fault. bye.

As with most things CCTV related people lie and claim 960H cameras are 1000TVL. This isn't actually possible, TVL should be measured across the horizontal axis over a distance equal to the height to the vertical axis, not across the entire horizontal axis. Correctly measured 960H cameras would be the same TVL as an equivalent 4:3 aspect ratio camera. 960H has exactly the same resolution as D1, it's just 30% wider with the extra lines filling in that area. These days of course standard definition CCTV is largely a thing of the past no that HD has become established.

CCTV42 Thank you for your helpful answer. I would like to buy a camera for my 960h DVR. What type of camera should I be looking for? In other words should it be 800TVL, 700TVL 600TVL? Etc. It's all very confusing. Thanks again

@@GlitterPrincessHD I wouldn't get too concerned with the specifics of TVL, that isn't what's going to make or break your 960H camera. What's far more important is getting the right lens for your application. We would supply a camera that does 960H and also HD1080P so as and when you upgrade your DVR the camera could be used in HD 1080P mode which would provide a massive improvement in image quality. Feel free to give us a call on 01895 233311 to discus your requirements.

CCTV42 Thanks again. I will be sure to give you a call. Speak soon.

Hi there. You would need to contact the people who supplied your DVR, they will be able to provide operating instructions. The other alternative is to search online using a search engine such as Google. This is a legacy product sold by us a number of years ago but it wasn't a Bute DVR.

This method of wiring is suggested for HD Analogue systems not IP systems. IP CCTV has it's place but we aren't massive fans for reasons outlined here: www.cctv42.co.uk/help-advice/buying-guides/buy-the-best-hd-cctv-cameras-and-system/ip-or-analog-hd-cctv/

VGA & HDMI connect

These are not IP cameras, in this example we are using CAT5e cable purely for the copper content. The cameras are 12 volt which will increase the chance of voltage drop but with any wiring using thin wires and lower voltages voltage drop is an issue as cable runs increase in distance so trebling up acts as insurance policy.

@@cctv42 thank you for the response, I appreciate the example you have used are not IP cameras I guess my reason for the comment wsd purely the fact that poe devices run 48v on cat5e and cat6 onwards cables albeit with them being thin cores..

@@rizwanmahmood1407 these are not PoE cameras in the strictest sense of the meaning. Because they work at 12 volts there is more chance of voltage drop compared to 48 volt devices. It's why the large power cables you see across the country run at 400,000 volts. CCTV applications are unique in that long cable runs can sometimes be required, certainly longer than might be experienced in a home or office set up and you won't have localised power injectors as you might in a network.

Using 3 pairs for 12 volt power and 1 pair for video signal we suggest 50m for power and video, 100m for video only (in which case you could handle the signal from 4 cameras on a single length of CAT5e / CAT6 cable. Some balun manufacturers suggest a further distance than 100m but we advise 100m to be safe.

At 40-50m we would suggest powering the cameras locally to avoid voltage drop. CAT5e comes with 4 pairs of wire, you would need to run a second cable. If you are powering the cameras locally (ie. not using the CAT5e cable to supply power) then as you only need 1 pair of wires for the video feed up to 4 cameras can be handled by a single length of cable.