- Freeware antenna software that lets you see what the polar diagram of your rotatable beam actually looks like where it is operating.
With PolarPlot you can measure the polar diagram of the antenna and check for abnormalities - compare plots taken before and after changes to
the design or location - check the -3dB beamwidth - look at the front to back
ratio - see the size and position of the sidelobes.
2 Element beam designer
- This is a DOS program that will design a 2 element beam for a given frequency. The gain is about 6db's the front to back
ratio is about 10 db's. The SWR will be about 1.8 to
1, so for transisto
r rigs a tuner is needed The only information required is the freq in MHZ..