the toss

thanks to all

Do hotels / houses have both types ? Obviously the three pin one won't go in a two pin socket so the two pin one would be the way to go for phone / Ipod charger.

Except that it won't work on a digital TV

Why don't you straighten cam 1 & 2 up. I know it doesn't really matter but it looks so munch better

I'm sure your new Chinese multimeter will get to the bottom of the problem

anything about 13 fps will give a smooth playback. Motion blur is caused by frame stacking which is used by poor quality cameras to overcome low light deficiencies

I suppose it depends on how many or how often you are going to make the terminations. It probably will cost no more for the crimper & stripper than it would having someone do the terminations for you. If you go that way there are a few different types of BNC connectors. Basically there are the standard crimp (either two piece or three piece) , the compression crimp & the Bluecap which is reuseable. I only use the three piece standard crimp & won't comment on the others.Also make sure you get RG59 connectors NOT RG58 (which look the same to the untrained eye) When using the 3 piece BNCs ensure the centre pin "clicks" in when you insert it into the body before crimping or it will simply come apart if the cable is pulled. The other important thing is the centre conductor diameter. You can get 0.7mm or 0.9mm so if you have the wrong size for the BNC the centre either won't fit in the pin or the pin wont crimp tight enough to securely hold it. 90% of suppliers are not even aware of this

I thought this guy was a "computer & network " technician. I would have thought that he already had the answers to most of his questions.

I've been doing this work for 15 yrs and can't think of one. What is going to provide power to these when you find them?

Either you have a intermittent s/c or the xformer is simply not up to the task. Have you done a total load calculation with the ptz operating ?

You have set the TV to A/V input haven't you ?

I would like to know how they determined there was one dead pixel

Power supply issue. Also check that you don't need to enable the extra channels on the DVR

what is it you want grasshopper ?

In my experience most people who suggest wireless systems have never tried to use them. I don't know where the OP resides but in most countries there are restrictions as to the spectrum use. For example in Aust there are certain public access frequencies that are licence free. The radiated power O/P limit is 10mW. You are not even supposed to use high gain antennas. These frquencies are crammed full of devices putting out all sorts of spurious garbage. This & the need for a wide bandwidth makes them next to useless for CCTV. The serious installations use a licenced frequency allocation & achieve good results. So for 99% of people on this forum going wireless is throwing your money down the drain. For good results over long distance coax you will need pre-emphasis on the camera end to equalise the line losses as well as pre-amplification. This will involve doing a Freq/atten check up to about 5Mhz & adjust pre-emphasis for a flat response at the receive end. Post amplification may also be required but usually only as a last resort as the noise level will also be increased.

There should be a rubber seal around the lens which contacts the perspex dome to prevent this happening

It is what you would expect going by the cost of your cameras.

Seems like you are using unregulated supplies. No wonder you have experiencing these problems.

How did you lower the amperage ?

A collector output is the collector lead of a switching transistor that is switching to the device's earth. It is the same as a relay output except that they haven't supplied the relay - you need to do that. If it is a (open) collector output then you should also be provided with power (12v) terminal to facilitate the relay wiring.

If you are happy with the cameras then just get rid of the VCR & multiplexer. Replace them with a quality DVR of your choice

Have a look at your earth path - earth 1 -power supply 1 - camera 1 - cat 5e to DVR - DVR power supply 2 - earth 2 It is not the case that interference will decrease with length of cable. Interference does not "bleed" off but superimposes itself on the signal.

Sounds like one of those jobs I would seriously consider passing up , the potential downsides outweigh the benefits. If you go ahead then keep the owner FULLY informed about what & how you intend to do things. Get it in writing & get him to sign off on it. If the **** hits the fan make sure you are in the position of being able to point the finger back at him

You can get baluns that run power , audio & video

One of my boys rang in the other day to say he could not get a clear focus on a new camera. He replaced it with a used camera for testing purposes & the pic was fine. He was sure the new camera was crook. Went out to the job to have a look & he hadn't removed the protective film from the front of the lens. He has never had a problem with this for the last 2 years so I think he was suffering from Monday-itis. I told him he was an idiot.