[Elecraft] Any benefits to a Long "Long Wire"

Tue Aug 6 18:41:00 2002

Hi George,
All things are relative of course.  300ft is not long on 160m and is 
barely longer than a wavelength at 80m; this however is semantics:))  I 
used a 300 foot end fed on all bands 160 - 10m throughout the 1970s and 
had some tremendous results.   For this length you can expect it to 
perform better in directions tending towards the end of the wire on 20 
through 10 metres.  If extending the wire past 300 feet prevents a 
straight line run then stop at 300 feet.  Personally I didn't use a 
counterpoise and didn't feel the need to.

The decision to stop at around 100 feet or to extend to 300 feet plus 
should be guided by the direction in which the aerial will run.  If it 
is end on (either end) to a direction of interest, then the added gain 
of the longer run may prove useful.  If you are restricted to a run in 
one direction and that direction is 'non optimal' then perhaps the 
broader coverage (lower gain) of the shorter wire would be preferable. 
In any event, you may well find that a suitable end fed wire can hold 
its own against a beam in several directions.

Have fun,
Trev G3ZYY

In message <[email protected]>, george winship 
<[email protected]> writes
>After hosting Field Day at our place near the pond I have been thinking 
>about putting up a long wire there that would be permanent. It could be 
>whatever length I desire. Up to as much as 300 ft.(or longer), although 
>maybe not necessarily in a straight line.
>
>Any benefits to this over a shorter wire that is 100 ft. or less. I 
>will be using this on 80 through 10 meters. Would I need a 
>counterpoise? Lots of iron ore rock here.
>
>Other antenna suggestions?
>
>George, WA5UIH, K2-2217
>
>
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-- 
Trevor Day