Turnstile -- Horizontally Polarized Omnidirectional Antenna Free Space 24.94 MHz 2 wires, inches 10 0 -115 0 0 115 0 #12 10 -115 0 0 115 0 0 #12 2 sources 5,100,0 14,100,90 0 loads This antenna shows only a 1 dB variation in gain over the whole azimuth pattern. Compare it with the squalo, which is also used to achieve omnidirectional horizontally polarized coverage.