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BUDDIPOLE IN THE FIELD

BUDDIPOLE IN THE FIELD

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17m horizontal dipole<br />

A 17m dipole is 12.9 feet on each side (approximately 155 inches). It can<br />

be constructed from standard Buddipole parts using coils for loading, or<br />

the 17m dipole can be made from the combination of two antenna<br />

accessory arms and a 9.5 foot Buddipole whip extended to 9 feet 3 inches.<br />

All antenna configurations provide better than 2:1 SWR bandwidth<br />

across the band.<br />

Standard 5.5 foot whips<br />

Red whip: 5 sections<br />

Red coil: tap 10 (green)<br />

Black whip: 5.3 sections<br />

Black coil: tap 6 (black)<br />

With 9.5 foot whips<br />

Red whip: 6 sections (all out)<br />

Red coil: tap 3<br />

Black whip: 6 sections (all out)<br />

Black coil: tap 3<br />

Standard 5.5 foot whips (2 arms) with coils<br />

Red whip: 6 sections (all out)<br />

Red coil: tap 8<br />

Red side: two arms<br />

Black whip: 6 sections (all out)<br />

Black coil: tap 4<br />

Black side: two arms<br />

Red whip: 9 feet 3 inches<br />

Black whip: 9 feet 3 inches<br />

With 9.5 foot whips (2 arms)<br />

The best height for a 17m horizontal dipole is ½ wavelength above<br />

ground—8.5m (28 feet). Figure 17 contains far field plots at various<br />

heights for a 17m dipole.<br />

52

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