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Length for a dipole is important, but height above ground is NO LESS important. One-half wavelength is a bare minimum height for a dipole, and on 80 meters, that's about 130 feet. Since 160 meters is twice 80 meters, 1/2 wavelength there would be about 260 feet.

Anything less than those heights, for a simple dipole, will result in mainly NVIS results (which may be just fine for what you want).

As far as "G5RV" antennas: if it isn't 102 feet long, with 35 feet of parallel feeder it isn't a real G5RV. There's no such thing as a "half size G5RV", or a "double size G5RV". Build it yourself, experiment with feeder type and length and see for yourself what works and what doesn't.

If you have a very good tuner and a very VERY good counterpoise/"RF ground" you can generally feed a good 80 meter dipole against ground with good results.

<blockquote data-quote="Beetle" data-source="post: 144703" data-attributes="member: 1066">Length for a dipole is important, but height above ground is NO LESS important.&nbsp; One-half wavelength is a bare minimum height for a dipole, and on 80 meters, that&#039;s about 130 feet.&nbsp; Since 160 meters is twice 80 meters, 1/2 wavelength there would be about 260 feet.&nbsp;Anything less than those heights, for a simple dipole, will result in mainly NVIS results (which may be just fine for what you want).&nbsp;As far as &quot;G5RV&quot; antennas:&nbsp; if it isn&#039;t 102 feet long, with 35 feet of parallel feeder it isn&#039;t a real G5RV.&nbsp; There&#039;s no such thing as a &quot;half size G5RV&quot;, or a &quot;double size G5RV&quot;.&nbsp; Build it yourself, experiment with feeder type and length and see for yourself what works and what doesn&#039;t.&nbsp;If you have a very good tuner and a very VERY good counterpoise/&quot;RF ground&quot; you can generally feed a good 80 meter dipole against ground with good results.</blockquote>

[QUOTE="Beetle, post: 144703, member: 1066"] Length for a dipole is important, but height above ground is NO LESS important. One-half wavelength is a bare minimum height for a dipole, and on 80 meters, that's about 130 feet. Since 160 meters is twice 80 meters, 1/2 wavelength there would be about 260 feet. Anything less than those heights, for a simple dipole, will result in mainly NVIS results (which may be just fine for what you want). As far as "G5RV" antennas: if it isn't 102 feet long, with 35 feet of parallel feeder it isn't a real G5RV. There's no such thing as a "half size G5RV", or a "double size G5RV". Build it yourself, experiment with feeder type and length and see for yourself what works and what doesn't. If you have a very good tuner and a very VERY good counterpoise/"RF ground" you can generally feed a good 80 meter dipole against ground with good results. [/QUOTE]

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