30m Add-On Dipole (pre-assembled) for HEAVY DUTY Spiderbeam Yagi
Preassembled and ready for use (suitable for HD version)
This version is pre-assembled and ready to install on a Heavy Duty Version of a Spiderbeam Yagi. (Balun not included.)
The 30m dipole extends the coverage of most Spiderbeam Yagi Antennas to include the 30m band. It may be added on to most existing Spiderbeam Yagi antennas, or ordered together with a new antenna. The dipole is rotated 90 degrees to the other wire elements and fits on the existing structure. The boom does not have to be extended. The turning radius of the Yagi remains at 5 meters (16 ft.)
Each end of the dipole is capacity-loaded using two wires tied back to the side spreaders.
The dipole may be connected to the Spiderbeam’s existing balun and used with the same feedline as the other bands, or used with a separate feedline and balun.
When using only one balun, the forward gain and front-to-back ratio for the higher bands are not affected, but the front-to-side ratio is reduced, especially on 10m.
The (optional) balun is not included with the dipole and must be ordered separately when 2-balun configuration is desired. The balun is available either in kit form or pre-assembled and ready to install.
NOTE: Not compatible with the WARC Spiderbeam Yagis.
Further informations to be found here: Documents, Tips and Constuction Guides
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