Paul,
The taxi place I've been developing the software for are running about 300 ft. of tatty old RG58 on their base radio
Whoa!.
Couldn't they get the aerial any closer?.
I'd be getting the thing up on the roof and as high as possible, with a good run of RG-8 or even BELDEN 9913 and doing a decent SWR test on the installation.
Mustang,
It doesn't pay to inter-mix coax cables, it's like having a length of #12 spliced into a #10 electrical cable.
Also, I'm not sure that you can get crimp connectors (the most reliable) for RG-59.
About the cameras, the coaxial cables AFAIK run back to a controller, where a monitor and Time-Lapse Recorder are placed.
The cameras depending upon brand, use a Female BNC connector to connect to the coaxial cable.
Hope this helps.
{Message edited to remove typo's}
[This message has been edited by Trumpy (edited 10-12-2004).]