The Rooftop Tower

Common Amateur Radio Antennas

The J Pole

The Super J Pole

Omnidirectional

Yagi

Quads

Quagi

Stacked Quads

The picture above is of 440 MHz stacked quads. The spacing between the antennas is approximately 80-90% of the boom length. RG-59 (75 ohm) cable was used on the phasing harness. An almost perfect 1:1 SWR was achieved at 446 MHz after installation.