On Fri, 20 Feb 2015 21:38:30 -0000, "gareth"
wrote:

What is the recommended practice these days for Top Band antennae for
restricted spaces?

Either the tallest helical antenna possible, or the tallest vertical
with a top hat, or a conglomeration:
http://www.hamuniverse.com/k6mm160metervertical.html
Also, add some ground radials.

A problem with short 160m antennas is that the operating bandwidth is
very small. Change frequency even slightly, and you have to retune
the antenna or antenna coupler. Short antennas also exhibit low
impedances, which implies high currents, which suggests that beefy low
loss components are needed.

Many years ago (50?) it was to adapt a mobile area for fised station use.

Huh? What's a fised station?


--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558