I want to set up a web cam in the garden to monitor a bird nest. What are the limits for a long usb cable ? If I provide a power supply at the cam end will this greatly improve matters, or do I also need some signal amplification as well ? I'm thinking of about 10 -20 metres. If so, how, and what sort of kit do I need to do it on a limited budget ?
There is a limit but I'm not sure how long it is, someone else will I'm sure answer this, have you considered a stand alone camera, I've seen them being sold by the likes of Woolworths for as little as £30 for a black and white one, I did see a colour one as well which I think was £50 and some of them are wireless as well.
A busybody neighbour has a webcam type camera directed on the village pond to keep his eye on what he thinks of as undesirables - the youngsters of the village. He has a 25 metre cable connecting it to his computer at his home. It works OK. He lashed up the cable himself by cutting an ordinary USB cable into two, soldering a length of multi-way screened cable between the cut ends and wrapping the joints in insulation tape.
Sorry, it seems you have 2 choices, either set it up with your webcam and the repeater thing they mention, you would have to price it obviously, or the other suggestion I posted earlier of a outside camera available from the likes of Woolys and I've seen them at B&Q and the like as well. click here