These antennas can be compared on 20 and 40m. On 20m both antennas are half wave length. On 40m the Fan is half wave dipole, where the End Fed is extended and effectively a quarter wave, so about -3dB less gain.
Both antennas are about 10m above the ground at there feed point. Sloping down to about 5m above ground. Radiation direction is approximately North - South.
Each band has its own resonant dipole wire pare.
To feed the balanced dipole from 50Ω coax a Balun is needed. I use a D-Original BU-55 balun for this. Frequency range 3 to 75 MHz. Impedance 50 Ω. Ratio: 1:1. Maximum power 500 Watt PEP.
I build this antenna to have a reference antenna for 20 and 40m.
Most recent measurements of the 20m End-Fed (10/20/40/80m). This gives an impression of overall performance.
And for onw use to see which part of a band is most usable.
Data: 2017-10-17
BaseEnd-Fed antenna for 20m, 10 meter in length.
FT-140-43 ferrite toroid impedance transformer (UnUn).
To make it a multi band (10/20/40/80m) antenna when little space is available:
Placement of a HTM-10 aluminium telescopic (click) mast. Approximate 10m high.
Up to three RG-58 coax cables can be fed through the mast tube.
Theme by Danetsoft and Danang Probo Sayekti inspired by Maksimer
