On Sat, 20 May 2000, Richard Hole wrote:
> I have a USB web cam which I am thinking of using as a weather
> camera about 40 meters or 130 feet away from the computer. The
> camera can only work with up to 30 meters of the cable
> provided.
If your camera works with 30-meter cable then it is not USB. USB cable is
limited to few meters (3-5). Even an extension cable is not recommended.
Maybe your camera came with 3-meter cable (like older Vista cameras)?
> How much would it cost to send the USB signal wirelessly?
x10.com has some wireless cameras. They produce analog output. You'd need
to capture it as usual (with BTTV grabber). Total cost $150-200.
Alternatively, you can always buy some inexpensive CCTV security camera,
they are also weatherproof.
> Would there be much or any radiation involved?
No.
> Alternatively would a thicker or different cable go over 30
> meters?
No, unless you can also increase the speed of light in the cable :)
> Would the quality of picture be any worse at 40 meters than at
> 3 meters?
There will be no picture if you use 40-meter cable.
Thanks,
Dmitri
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
