Bill Kearney wrote:
So what goes between the antenna and the Linksys box?

As little cable as possible.

Use LMR-400 cable. Get Radiolabs to make you a custom cable up to 40'
long.

Do not make this cable very long. DO NOT run it down an entire mast. The
dB loss will be greater than you want for WiFi. It's better to use an
enclosure that lets you keep the WiFi gear as close to the antenna as
possible. No, amplifiers will not work as effectively (at least not without
using VERY expensive ones).

Neither one of these guys is completely right. Not yet. Look at the
specs here for the various LMR coaxial cables and decide which one best
meets your needs for your install:

http://timesmicrowave.com/content/pdf/lmr/184-185.pdf

I've used all LMR 100A, 200, 240, 300, and 400 in various combinations
and places and been happy with them all. Note that the names of the
various types of LMR coaxial cable is approximately the outside diameter
of the coax in hundredths of an inch (example, LMR-400 = .405" O.D.).

The most important factor can be the quality of the connectors and their
installation on the coax. The if the stripping and trimming is not done
right, connectors not fitted right carefully sealed, the signal losses
will increase remarkably.

Having the cable made is a good idea if you don't have the tools to do
it yourself.

I've done numerous 802.11B/G with coax runs of 50-100 feet of LMR-400
and added another 5 to 30 feet of LMR-200 or 240 to that to get through
walls, floors, and have some flexibility at the back of a PC.

There is one error in the brochure above, the minimum bending radius for
LMR-240 should read .75 feet (a 9 inch radius bend), not .75" (inches)
as listed.

Jack

--
Jack Erbes in Ellsworth, Maine, USA (jackerbes at adelphia dot net)
(also receiving email at jacker at midmaine dot com)