kensplace

Has anyone got any multiplexed video images that they have captured on a pc, that they could send over, I am trying to see if I can extract each camera in turn from multiplexed images. Need samples to work from though....... My captures dont seem to capture properly (either that, or my kramplex isnt working properly, or I am missing something obvious..........) The more samples the better chance I have of coming up with something useful Used to be a software developer by trade, but depression (workplace bullying) got the better of me, so very rusty now, but trying to do something interesting, and useful....

I would love to see that sort of thing on more sites, even as far as showing different lens setups, wide angle, varifocal, zoom lenses etc so people can see what lenses to buy. Even maybe show how well the camera likes infra red lighting if its a b/w camera that is IR sensitive, so people can see if its a good buy for night jobs etc. Spec sheets are great, but a picture is worth a thousand words... While your at it, if you sell DVR's, record avis or mpegs from them and show what their recording ability is like at different recording levels, compared to the original - that is something I have not seen yet (and from the specs of many machines I can understand why lol) If it works, sales increase, if not, well you only lost a little time, but you will probably get a lot of links to your site, which should increase sales eventually....

If you are capturing the image onto a pc, and iF you have a hauppage pci capture card (or any popular style card probably), then you can use its software usually, or many other free aps to capture a snapshot, my wintv pci card has a snapshot button that takes a snapshot of live input, at a resolution of my choice. I would love as a customer to see pics of how a camera copes with different light levels, ie day shots, night shots etc. If all the shots were of a recreatable scene then people could compare camera's to see which is best for them.

They got back, they dont support the kramplex anymore, but they could send a manual to print for me, but that would cost 50 uk pounds.. Gave it a miss, thats over double what I paid for the unit. But at least they did offer to help!

Seems intermittent for me now, as it works fine now.. Weird. Maybe godaddy is getting sneaky money from parked pages lol....

Appears to be some problem with the forum, its not recognising any page prefixed with www (like the redirect for the www is broken) so www.cctvforum.com just goes to a parked page with cctv ads, only cctvforum.com works

Good idea, just fired of a email, fingers crossed they email back. Just a end user, so dont deal in quantity so some firms treat you worse than a pile of poo (cough plettac) but then again, some bend over backwards to help all customers, hoping tecton is one of them. I cant recall if I emailed them a while ago or not, I think I have been put of contacting manufacturers by plettac/grundig who have completely ignored every single request for info I make. Hope tecton fares better

Its a liteon 5045 they are pretty cheap these days, especially compared to cctv stuff, and the budget cctv ones I looked at recorded at a really low resolution. The replacement (didnt even have to pay return shipping) works fine (touch wood, fingers crossed) so far, only glitch seems to a slight bit crosstalk/interferance on the sound now and again if I use the front a/v audio channel whilst using the scart channel. Will get on to support about that, see what they say, but i guess I can live with it for now.

Im in the same boat with my old tecton kramplex multiplexer, cant find any pinout details for the keyboard port, if I ever figure it out I will post it in case its the same for the drax (But you obviously would test at your own risk in case its not....)

Could it be a interlacing issue? Is the DVR setup to deinterlace the picture if needbe?

IF you bought it 'new' I would get your money back, and ask the seller why they are selling pirated crap. ALL Pico software sold on ebay (as new) is pirated and thats direct from the manufacturers site. Pico software should not make anything go red, your cameras are either setup wrong or faulty, or the card is faulty. 4 Channel cards like this are usually just one channel multiplexed into 4, so if you want to record 4 channels divide the frame rate by 4 to get the real recording frame rate. I would not recommend a pico card for any serious use, just for messing around with.

Downloadable schematics, connection details etc. Manuals get lost easily, and schematics are useful for bench repairs (even though many manu's like a throwaway society.....) A sliding filter (like a built in lenscap) for the ccd so when you take a lens of for some reason, you can just slide down the cover and no dust gets onto the ccd. Built in test pattern (do recent cams have them?) so you can check quality of connection easily and consistently.

Quick update, it arrived, and the picture quality is fantastic, it can record at full pal resolution, or lower for longer. Miles better quality than the cheapo 4-channel card of ebay, and miles better than the hauppage wintv card. Comes with zoom, fast forward, slow motion etc, pal/ntsc, and all format dvd writer to burn recordings. Lots of inputs so I can switch between tv, sky digital, camera input, or pc tv card. Sods law though, its a duff unit, keeps crashing, so its going back - fingers crossed the unit they send to replace it will be fully working. Need to figure out how to get the multiplexer working with it, not even sure if it works properly for demux or not, or what settings, but got all the time in the world to figure it out lol.. Firmware is upgradable also, so who knows maybe someone somewhere will add cctv stuff to some hacked firmware.....

Dont know what the interface is on the DVR, but make sure if you stick a relay onto it that the back emf from the coil does not blow the DVR output if its not protected. To be safe, you can stick a diode across the coil, in reverse, to absorb the back emf (the current in the coil, that the DVR applied has to go somewhere when the relay is deactivated, and without a diode to short it, it will just shoot back into the DVR as a high voltate.)

And if its a dull, overcast day, without much sunlight, then you probably wont have any juice for the night.

Camera should be fine, after making the mistake of buying a couple of dome cams from ebay (utter junk....) I waited until some decent kit came along for next to nothing on ebay, got a plettac fac830 and a sony something or other, both good quality, mainly use the plettac as its better at night (its been used by town centers etc for their cctv systems, and I wish I knew the protocol for it.) Got a videmech pan unit on the plettac along with a computar zoom lens (7.5 to 75) so I can zoom right in on the trouble makers.... Waiting for a dennard 2000 pan tilt to arrive (cheap, only 10 quid + postage) but not sure where on earth I could put it, as it looks slightly to large, and obvious for the window sill lol.... Course that relies on me being there at the time, but I can have a second cam with a wide angle lens on for a overview, that can show me where the trouble makers head of to afterwards (as they seem to live very near....) Just ordered a liteon hd/dvd recorder, so can just record to hard drive, then burn to dvd if needed, should be arriving in the next few days, will report back what its like. (plus the other half isnt going mad at me getting more 'camera' junk, as we can record tv on it...)

Ask for the power supplies in question, test them to see if they are indeed 24v, and are not faulty. Kindof pointless supplying replacement camera's if they just plug them back into a suspect power source. Also make sure 24v AC is the correct supply voltage....

Ken here from the UK (North East England) For me CCTV is a 'hobby' and something I use due to living in a less than perfect area (burgled twice, windows smashed twice, nice area....) Also into digital electronics/interfacing etc and software development, but not currently doing any dev work other than for the web (hobby again) Got a few camera's, lenses and waiting for a pan-tilt to arrive (got a pan only unit at present), along with a tecton kramplex multiplexer and vrc + a couple of capture cards. Still learning, loads to learn, bought everything over time on ebay (and suprisingly cheap, and even more suprisingly it all (mostly) worked fine) Probably going to build up some control hardware (anything is better than the plastic box covered in brown tape with a jamma cab joystick in that I currently use for the pan) to do telemetry for the ptz, if I ever find a cheap amphenol connector for it..... Ahh better stop waffling on, and get back to reading posts

Is that 26v measured with the camera connected or disconnected? Its usual for a crappy supply to show a higher voltage when their is no load, but return to normal under load. Do the cameras not have a spec sheet, with a tolerance rating (+ and - percentage max voltage they can take)

If any one is using standard capture cards (bt 848 etc etc) like hauppage then its worth searching for DSCALER, which lets you use the cards to their full potential. Lots of de-interlacing, filtering, aspect ratio and more settings. Takes ages to play around and get results, still learning myself, but looks like a nice tool. No idea what chipset the geovision cards use, anyone know?

Im tempted to get a standard tv one, not bothered about the recording times, 1 day would do, 2 would be great - its just so I can leave it on, and forget about it really. Until recently I was just hitting the record button on a vcr when I suspected trouble, now I can hit record on the PC, but I cant leave it on permanently on the pc as its way to resource hungry. Anything that can record at least 24 hours, at at good quality (ie for evidential identification/prosecution purposes) would do the job.

If you mean a covert camera in a PIR sensor then you will probably find that all of them will have to have a hole that the camera looks out of, otherwise the lens would not be able to see... They should have a wide angle lens in them, so they should see a fairly wide area. You could always get a tiny board camera, and install it in a PIR sensor yourself, just rip out the exising internals and stick the camera in, maybe use the whole where the led used to be for the lens.

Not going to post a link, but I have seen several CCTV videos (available on the net) showing people having sex in a alley at the back of a night club which is very near where I live. The place is shut down now, wonder if they got sued........... Wonder if the people know they are famous now..... Some cctv operator enjoyed his job, panning tilting and zooming in, getting the action...

Whilst I cant imagine the US lying over a issue like this, I cant understand a few things. 1. It looks like something, but not a plane (but that could just be the low speed shutter/high speed object problem) 2. The entry hole - ITS ONE HOLE, not one big hole with two holes where the engines smashed through. Just one hole. The engines and wings must have just vanished, as they didnt go through that wall........ 3. The engine manufacturer (Rolls Royce) states that the engine remains found ARE not a rolls royce engine, and certainly not one found in a commercial plane as claimed. Course thats just what I have read / seen online... Who knows.

Once you have done your changes, you can use shields up to give it a quick test to make sure nothing untowards is open and insecure, its not perfect, but its pretty good (and free...) http://www.grc.com/intro.htm