- W8JI 110 ft dipole
- Horizontal Loop of 287 ft
- 133 ft Off-Center Fed Dipole
I found that the shapes of the radiation patterns vary, but the peak total gain figures are similar among the 3 for the two frequencies I used: 3.5 and 7.2 MHz. Here is a summary of results:
|Maximum Total Gain (dB)|
|@ 3.5 MHzemail@example.com MHz|
|110 ft dipole||5.53||6.59|
|Horizontal Loop of 287 ft||6.39||5.83|
|133 ft OCF Dipole||5.74||6.42|
Radiation patterns for the 2 frequencies are shown in this PDF file. If you zoom in enough you can read the data on each graph. Patterns for additional frequencies are easily generated.
I used a similar side-by-side presentation in this 2010 posting when comparing two antennas sized for 160 m (110 ft or 130 ft wire to each side of the feed point).