Claudio Catanzaro
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Everything posted by Claudio Catanzaro
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I need to put some wide angle cameras (more than 120 degrees). I have some cmos dome cameras from STV and I want to buy some 120 degrees lenses for this cameras. What must I know to find the right lens? How can I know which lens will fit my camera? Thankyou for your answers Claudio Catanzaro
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What to check for installation health
Claudio Catanzaro posted a topic in Installation Help and Accessories
Hi, I've made a 8 cameras installation with a dvr card. It Worked for 3 or 4 months and the card got fryed, and the guys who sold it to said that was for a faulty camera. One camera was giving more tan 2 volts via coax, and a friend who help me with the install told me that he remembers feeling electricity when he was adjusting focus for one of them. Now I have bought a new card via Internet and I want to be sure that It will not be fryed too. What do I need to check to be sure that my installation is fine? Voltage? Impedance? Amperage? and how much of each one can a CCTV device afford without have some injure? I'm not talking about a bad picture or weak signal but about something that can damage some equipment. Thankyou for your answers Claudio Catanzaro P.D. Some litle sins that I made in this installation : - I Used RG6 coax cable. - I Made a "patch panel" with rg6 "twist on" connectors mounted in two rails (I will check tomorrow if I didn't mixed braids in the pannel). - Cameras has differents grounds (I hadn't bad signal, pictures were perfect!) - Bigger cable has less than 90 ft. (that's not a sin ) - Four cameras (110 mA each) share a 12 V 500mA DC reg power supply. - Some cameras are in a industrial enviroment, sharing electrical circuit with welding machines and plastic injectors - All cameras has 12 V 500mA DC reg power supply (some of them sharing it) but not all of them are behind a UPS or voltage regulator. -
Electrical health of my installation
Claudio Catanzaro posted a topic in DVR Cards and Software - PC Based Systems
Hi, I had a home made 8 cameras installation with a dvr card. My card got fry, and the guys who sold it to me told me said that was for a faulty camera. One of my cameras was giving more tan 2 volts and a friend who help me to install them told me that he remember feel a electricity when he was adjusting focus for one of them. Now I have bought a new card via Internet and I want to be sure that It will not be fryed too. What do I need to check to be sure that my installation is fine? Voltage? Impedance? Amperage? and how much of each one can a CCTV device afford without have some injure? Thankyou for your answers Claudio Catanzaro -
Hi everybody, I'm from Peru and I have a card for 16 cameras. It comes with a kodinet software, but kodinet says that they don't know it. I'm attaching a picture of the card for documentation. I will be very glad if somebody confirm me which brand and model really is. We bouht it in a big wholesaler, here in Peru and we refuse to believe that is not an original one. It was working really fine in a Pentium III Windows 2000 computer with 8 cameras attached, then we changed our PC to a Pentium IV 1,7 Ghz. We installed Kdnet 2.50.16.0 software, that comes with the card and it doesn't worked very well. The image is extremly bright (all white) and we barely could see an image there. It is not a light problem, because it continues been extremly light even at night. The cameras are working fine, because we tested them with a litle tv monitor. Do you know what can be happen? Looking for something that could be wrong, I saw in the card a litle golden screw in a blue socket. What is this screw for? could it have something to do with my problem? I really apreciate your answers about this issue. Thankyou in advance Claudio Catanzaro
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Extremly bright image
Claudio Catanzaro replied to Claudio Catanzaro's topic in DVR Cards and Software - PC Based Systems
Not in my case Dave, I gave the card to the distributor and they answer me that one of the chips must be fryed, maybe caused by a over-voltage in a camera. They didn't give me a new card neither my money back, because they said that it was a problem with the cameras (They sold me the cameras too). They ask me if the cameras had a voltage stabilizer and ground, before the power supply that they gave me (I looked in the specifications of both and there's nothing about stabilizers), also they asked me about what kind of coaxial cable and if the cameras was outside (I bought them asmikg for uotdoor capabilities)... Obiusly they was looking for a mistake for don't cover the warranty. I didn't find too a technician that can repair it. Now, I'm looking for a good distributor in USA or even inChina (I don't know how to import small quantities from China... I don't know even how to pay a China's Distributor, but I'm doing my investigation). I want a good card for 8 cameras or 16 cameras, with linux compatibility and, of course, a good price. Claudio Catanzaro -
Extremly bright image
Claudio Catanzaro replied to Claudio Catanzaro's topic in DVR Cards and Software - PC Based Systems
It helps!!! I was playing with it, turning half a turn, or quarter a turn... but looking in he web, This trimmer accepts 25 turns until it sounds "tic". When I make 25 turns, until the "tic" begins to sound, It appears some black and white image in one of the cameras (the only one that haves night-vision) Trying to understand this card with a friend of mine who knows about electronic, We have found some things. 1) This card has an direct RCA output that can be connected to a monitor, and It's customatizable via software to cicle some cameras. It works, giving perfect image of every camera, then It confirms that cameras are fine. 2) One of the camera's signal gives too much voltage (1.5 V) when all of the others give voltage in the millivolts range. It could hace the guilt of fry some part of my card in some way. (We have not tested this camera with direct RCA output ) 3) The blue trimmer, affects 10 chips that works like amplifiers (those ones that appear in the first picture: U11, U12, U20, U21, U22, U23, U24 and U25 ), all fo them are connected in a wear chained way but we can't continue following the circuit after them My friend took the card to his lab, to continue trying to know what's wrong in it or at least, how is that it works. Claudio Catanzaro -
Extremly bright image
Claudio Catanzaro replied to Claudio Catanzaro's topic in DVR Cards and Software - PC Based Systems
Thankyou for your answers!!! I have supossed that It's from koditec because It comes with a kodinet software, but nobody told me that It was a Koditec card. In a matter of fact, It's labeled "STV" in the box (I didn't find any stv company in the web). How much "pirated" can be a hardware? (It's not retoric, I really don't know about hardware copiright). If my card comes with a pirate software (I know it's a bad thing) but I buy a legal software to use it... Am I "legalizing" it? or could be a pirate dessign too? That's my fault. I removed the sticker looking for some information about the card to google it. Obviusly It didn't work. Here in Peru, we have not a lot of dvr cards to choose, neither a lot of distributers... Sego (the one that sold me the card) is one of the biggers and suposely a serious one. I'm really surprised that they sell pirate cards. You are right, We can't stand people who sell fake cards. I was thinking in buy directly and import dvr cards, but It was a future plan when my bussiness get bigger. I can't import 2 or 3 cards by month... It will not be cost effective. The good news is that if the bigger distributer here are not serious people... There is a space in the market for seroius people that could be us.