Longwire and Diople optimal lengths.
Posted: Fri Nov 04, 2022 12:10 pm
There are lots of sources for this info, but here are some that seem close to the mark:
Starting out simple:
End-fed longwire, 9:1 unun and recommended feedline lengths -good and to avoid. Dipole lengths are given in this table: And that popular Windom: For completeness, two commercial examples:
If you prefer to design your own antennas with a computer model, the grand-daddy of them all is EZNEC, available for free download at:
https://www.softpedia.com/get/Science-CAD/EZNEC.shtml
Be aware that this is a perfectly functional download, but if you want updates etc. (details at this link), you need to part with $99. -Or use a totally free older version.
Runs on all modern versions of Windows, and also Wine for Linux.
Starting out simple:
End-fed longwire, 9:1 unun and recommended feedline lengths -good and to avoid. Dipole lengths are given in this table: And that popular Windom: For completeness, two commercial examples:
If you prefer to design your own antennas with a computer model, the grand-daddy of them all is EZNEC, available for free download at:
https://www.softpedia.com/get/Science-CAD/EZNEC.shtml
Be aware that this is a perfectly functional download, but if you want updates etc. (details at this link), you need to part with $99. -Or use a totally free older version.
Runs on all modern versions of Windows, and also Wine for Linux.