Analog to digital

[wagga_ria 0]

Hi All

 

I am a newbie here.

 

I had installed a security camera system at home.

It came with a 4 x 700TVL cameras and a DVR. (Zmodo brand)

Easy to connect, but had to hire an electrician to run the cable through the house and between the double brick wall.

(Cables are coaxial (BNC connectors) and power)

 

I want to upgrade to the 720p cameras. Looks so clear from the demo at a shop.

 

How do I upgrade, using the current cables?

 

Do I just change the cameras alone?

Do I need to change both cameras and recorder?

 

Thanks in advance

[mattaggie 0]

Personally I'd just run new cat5 cable so that you can install an IP system. It is possible to use your current cabling but you'd have to buy SDI cameras and SDI DVR. That would get you 1080p. I know you probably don't want to re-run cables, but doing so would set you up for the 21st century and beyond. Coaxial limits what you can do.

[survtech 0]

I thought HD-TVI, HDCVI and AHD also use coax???

[NetTech26 0]

Hi All

 

I am a newbie here.

 

I had installed a security camera system at home.

It came with a 4 x 700TVL cameras and a DVR. (Zmodo brand)

Easy to connect, but had to hire an electrician to run the cable through the house and between the double brick wall.

(Cables are coaxial (BNC connectors) and power)

 

I want to upgrade to the 720p cameras. Looks so clear from the demo at a shop.

 

How do I upgrade, using the current cables?

 

Do I just change the cameras alone?

Do I need to change both cameras and recorder?

 

Thanks in advance

 

You have a few options, but the cost will probably be your determination.

 

You will have to buy new cameras. Preferably a IP camera with PoE (Power over ethernet) and is ONVIF compliant.

 

If you want to keep the existing wiring, this can be possible by using Ethernet over Coax converters. I have used these http://www.nvt.com/content.php?type=template&key=productfamily&ckey=eoc is my casino before. You plug them in and they just work! But they are bloody expensive.

 

Option 2 would be to run new wiring to each camera. I recommend running CAT6, buy PoE (power over ethernet) cameras and switches.

 

For your recorder, you will have to check if it can input a IP camera. Its its strictly a analog recorder I would doubt it.

[wagga_ria 0]

Thanks all.

 

I do not want to run new cables as they are very expensive for a tradesman to do that (in Australia).

 

On Ebay (link below), this seems to be a 720p system using a coaxial cable (BNC connections).

Will the system below gives a better quality camera than my 700TVL cameras (960H).

 

http://www.ebay.com.au/itm/ANNKE-8CH-AHD-720P-DVR-Hi3520D-1500TVL-Outdoor-CCTV-Security-Camera-System-1TB-/322033683301?hash=item4afab40b65:g:Cs0AAOSwUuFW1sQh

[SMzoo16 0]

720p (1280pxls wide) should be a lot better than 700TVL (~900pxls wide) I think?

"960H is 960x480 resolution, but 720P is 1280x720"

from : hkvstar.com/technology-news/960h-surveillance-increased-30-resolution-than-d1.html

Big Difference? I think so.

[FranciscoNET 0]

Personally I'd just run new cat5 cable so that you can install an IP system. It is possible to use your current cabling but you'd have to buy SDI cameras and SDI DVR. That would get you 1080p. I know you probably don't want to re-run cables, but doing so would set you up for the 21st century and beyond. Coaxial limits what you can do.

 

TVI, CVI and AHD also uses coax. My personal preference is HD TVI because its the best one out of the three.

 

Also, HiKVision, the creator of the HD-TVI standard has just figured out a way to pass 4K Ultra video over Coax, making it the third generation HD-TVI that will soon be out to the market, now you will be able to perform 4K Ultra HD installation in HD-TVI format and keep your existing coaxial cables and its back compatible with all the previous HD-TVI cameras out there allowing you to use 1080P and 4K cameras interchangeably.

Source: http://www.securitynewsdesk.com/hikvisions-third-generation-turbo-hd/

 

This is BIG news! I am so exited about this. Coax installation is strictly a relationship between the DVR and the Camera, there are no middlewares (as in switches, etc) in between, means less point of failures to consider. For an IP system, you have the following:

 

* The IP camera

* The Power over Ethernet capable network switch

* The power brick that supplies the 48V power to the cameras connected to the PoE switch.

* The Ethernet cables + RJ45 heads for each ends

* VMS software at a rate of $60 per CH software license or a standalone NVR that may or maynot charge additional licenses per CH (camera).

* Ability to transmit up to 8 MP video streams.

* Maximum Distance: over 300 ft, if you require more than 300 ft you will need network switches in between.

( IP cam <--> PoE switch <--> PC/NVR )

 

For a Coax HD-TVI system you have the following:

* The HD-TVI cameras

* The 12V power distributor (example: 12v 20A 19 ports)

* The Coaxial cables + BNC connectors for each end.

* HD-TVI DVR and the manufacturer's VMS software to see the cameras remotely from any PC or SmartPhone (iVMS-4500/iVMS4500 HD to give an example), so no software licenses required, if you have a 16CH HD-TVI DVR, 16 CH's you get to monitor from any numbers of computers at any camera configurations at no additional costs.

* Well, now we will very soon have the ability to transmit 4K videos over Coax when these 3rd Generation HD-TVI DVR's and 4K TVI Cameras hit the market, but that the very immediate moment we have full HD.

* Maximum distance: 1,000 ft for the current 2nd generation HD-TVI, but for the new imminently incoming 3rd generation HD-TVI you can go to 1,500 ft in distance.

( HD-TVI Cam <--> HD TVI DVR )

 

So, it would be cost effective to remain coax using HD-TVI, and it would also be cost effective to perform new HD-TVI installations, less point of failures between the camera and the DVR means more reliability, and did I mention, longer runs per reach single cables that IP cameras cannot top at the moment.

 

In some jurisdiction you have a minimum mandatory 30 days data retention policy, meaning that the DVR MUST retain videos for at least 30 days and going higher in Mega Pixels means that it gets harder and harder and much expensive to satisfy this requirement at your chosen MP of your choice. You can keep on using the same bitrate you used to when recording at 16 fps in full HD to record in 4 fps in 4K HD since after all, 4K is 4 times full HD in quality and this will provide you an even crisper image quality.

[wagga_ria 0]

Hi All

 

Update on my progress.

 

Bought 2 AHD cameras.

Unfortunately it does not work with a current DVR which has 700TVL cameras connected.

 

So I purchased a AHD DVR (8 channels)

Just swap over the DVR utilising the 700TVL cameras. It worked.

The I replace 2 of the 4 700TVL cameras with the AHD cameras.

So I have two of each. I was able to set the channel encoding to the type of camera connected - 720P & 960H.

All good.

 

After that, I am not sure what I did, apart from swapping the ports.

Now all the encoding seems to auto select to 720P. Even selecting 960H, it does not retain the setting.

That meant now two of the cameras (700TVL) is not working .... I meant a blank video.

 

Any help?

AHD DVR & AHD cameras are ANNKE.

700TVL cameras are ZModo

[tomcctv 190]

HiKVision, the creator of the HD-TVI standard has just figured out a way to pass 4K Ultra video over Coax, making it the third generation HD-TVI that will soon be out to the market,

 

Hikvision did not create tvi they are a licences makers.

 

Also hikvision 4K is using there own H265 plus which has been belayed because it is not comparable with the true H265 standard.

[SunnyKim 2]

700TVL cameras are likely to be analog cameras.

The resolution can be NTSC/PAL : D1 or WD1 of 960H resolution out:

720 X480 or 720 X576, or 960X480, 960X576.

AHD cameras are likely to support 720P (1280X 720 sized).

The AHD DVR are likely to work compatibly with, either analog cameras or

720P (HD) cameras. If not, it could be the chipset version, or softwares.

Please check your DVR manufactuerer.

[jtsecurity 0]

HIKVision HD-TVI products are outstanding. Shortly 3mp versions will be released giving you better than 1080p HD quality for alot cheaper than IP. Also allowing you to keep your existing cabling. You will need to replace both camera and recorder to get the HD quality but well worth the investment.

[wagga_ria 0]

Hi All

 

Me again.

 

I think more or less sorted.

 

My AHD cameras (2x) and 700TVL cameras (2x) work well with my ANNKE AHD DVR.

Just that AHD cameras are on the first 4 channels (1-4) and the 700TVL cameras on the last 4 channels (5-.

So all good now. If I have the budget, might replace 2 of my 700TVL cameras with the AHD version.

 

My only gripe...... I can't do remote viewing via my Mac. ANNKE is only Windows (w Active X), Iphone and Android compatible.

ZMODO can go on all.

[FranciscoNET 0]

Hi All

 

Me again.

 

I think more or less sorted.

 

My AHD cameras (2x) and 700TVL cameras (2x) work well with my ANNKE AHD DVR.

Just that AHD cameras are on the first 4 channels (1-4) and the 700TVL cameras on the last 4 channels (5-.

So all good now. If I have the budget, might replace 2 of my 700TVL cameras with the AHD version.

 

My only gripe...... I can't do remote viewing via my Mac. ANNKE is only Windows (w Active X), Iphone and Android compatible.

ZMODO can go on all.

 

I have your solution that is more of a work around:

 

Install Oracle VirtualBox which is (open source) freeware for all (home and business) users, then install a version of Windows that you have an extra license for (eg. Windodws 7 Home Prem. while using a W7HomePrem License Sticker that you have unused - from a broken laptop/desktop/trash?) then start your Windows 7 (XP, Vista, 8, 10 which ever version you installed) and then install the Windows client for the ANNKE AHD DVR. Setup the program to connect to your IP address/DVR Domain, full screen it, and now you have a nice window showing all of your cameras remotely from within your Mac.