2016 m. balandžio 2 d.

A three band (10m 6m 4m) dipole


It was only possible to design it with the help of software written by these Great Men:


MMANA-GAL
 JE3HHT, Macoto, DL1PBD, Alex and DL2KQ, Igor
APAK-EL by DL1PBD, Alex

Thank you guys!













Lengths 450 and 300 Ohm ladder lines were cut to achieve acceptable SWRs on all bands (<2 br="">




Radiation patterns @4m above ground

 p.s. used twinlines bought on ebay:
450 Ohm - 2cm gap between wires,
300 Ohm - 0,7cm gap between wires.

I think this antenna could be made also as a vertical (for omnidirectivity, lower radiation angles) but calculations must be done.

73 Zilvis @LY2SS

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