Paul,
Quote
The taxi place I've been developing the software for are running about 300 ft. of tatty old RG58 on their base radio
Whoa!. [Linked Image]
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).]