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7 element yagi-uda


The design of this Yagi-Uda antenna is not necessarily the most optimal design for bandwidth
post 31 Jan 2024
7 element yagi-uda

Antenna Calculator Links

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PHGR Calculator Power, Height, Gain and Beacon Rate
Online calculator will produce the text required to be put in your beacon string to display to others your PHGR

Quadrifilar helicoidal antenna Javascript on-line calculator
Design frequency MHz,Number of turns twist,Length of one turn,wavelengths,Bending radius

RF Toroid Inductors
Specs for T200-2 RF Toroids

RF Tools calculator
Enter the frequency of operation and the balanced and unbalanced Z0.Values for L and C will be calculated


Take off angle of horizontal antenna

Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane

A remote antenna switch

A remote antenna switch An abiding dislike for bundles of cables running on the exterior of my house, so a remote antenna switch seemed like a good idea

5 element yagi antenna for 28.5 Mhz

5 element yagi antenna for 28.5 Mhz Gamma match will be made with a 1/2 "aluminum tube and a 75 cm coaxial piece of RG8 without sock and sheath inside the tube