On Wed, 28 Dec 2005 02:33:45 -0500, "Hal Rosser"
wrote:


"Charlie" wrote in message
...
Currently the top loop is at only 20ft but I am making many contacts.
Soon
however they will be placed off a sidearm on the tower.
The top loop could then be as high as 80 ft.

I have read and read about this topic. Does anyone have any first hand
knowledge of 6M height above ground comparisons especially for stacked
loops? Thanks....


6m is line-of-sight, so higher is better than lower.
If you have the opportunity to put it 80 ft high - do it.
why are you stacking loops? why not make a quad ?


I can answer for him. Stacked loops offer some amount of gain
but are omnidirectional. A 2 element quad, offers slightly more gain
but is directional. If both are on the SIDE of a tower, one has to
be turned and is expensive to do that.

Actually a single loop has better high angle when mounted high up
than a stacked pair.

After trying a lot of 6m antennas. Quads with wires thinner than 1/4"
are only ok but doo poorly with ice and high wind. I'd do a yagi of
4 or more elements for gain and F/B and a loop up high for local
nets(omni).

Allison