I am going to be adding a number of my new high gain rigid Quads which of course have a direct 50Ohm input so no matching required. In addition, I will list a number of variants especially designed for stacking which provide higher levels of gain while maintaining stability (wet weather) and bandwidth.

Commercially, these will be available through my company InnovAntennas (some already are) but I will provide details drawings here for a number of designs that you can self build on a budget.

Below is a 2 element 50MHz Quad I have installed at my UK home. the boom on this antenna is just 53cms long and yet it punches with a 7.6dBi gain figure and 18dB F/B, while SWR remains below 1.5:1 for 500MHz, not bad.

2 element 50MHz Quad with 53cms boom and 7.6dBi Gain

Stay tuned between now and the new year and I will be adding an article discussing the benefits of the quad and how these great antennas can serve any station very well on most bands.

Justin G0KSC