Dualband-Beam 12/17 m
- The beam has only one feedpoint with 50 Ohm and has an open-sleeve element for 12 m by DK7ZB
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2 element Quad antenna for 10 12 15 mtupdatedpop
- Detailed instructions about a home made 2 element quad antenna made in diamond configuration, resonating on 10 12 and 15 meters band, by IZ7ATH Talino
Cubical Quad Antenna Designupdatedpop
- By N6VNG, can be used to determine the element lengths and the gamma match values for different frequencies, includes link to excel files with formulas to dimension your quad antenna.
- NORAD Two-Line Element Sets, FAQ, and related informations.
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- Keplerian elements are the inputs to a standard mathematical model of spacecraft orbits.
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- Orbitessera provides a mosaic of orbital information. Information is provided for the Space Shuttle, the International Space Station , Mir Space Station , and general Satellite Keplerian Elements information
- The file MEI-10.ZIP contains educational software to evaluate antenna arrays of up to 8 elements. Two types of arrays may be studied: 2D planar arrays (Yagi-Uda, Circular, etc., up to 6 elements) and colinear arrays (up to 8 elements.)