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==Hy-Gain SPT-500 Super Penetrator====Antron 99 / Solarcon A99==[[Image:50star.png]][[Image:20star.png]]* 1/2 wave vertical antenna type This antenna is a half wave over a quarter wave variable mutual inductance antenna. The Antron 99 is roughly 18 feet long and is made of 3 fiberglass sections which screw together. Inside the shell the actual radiating element of the antenna is just a 16 awg wire. The truth is that other antennas of better quality and performance will easily outperform the A99 at pretty much any height. The Antron 99 was popular due mostly to hype and the very low price. A good 5/8th wave metal antenna will outperform the A99 under any conditions. The Antron 99 is also known to be bad for causing interference. If mounted low to the ground the signal will find its way into your TV, stereo, phone and computer speakers. Claims by Solarcon of 9.9 dBi gain are over inflated and misleading. In conclusion this was probably the biggest hyped CB antenna ever made.[[Image:40star.png]][[Image:30star.png]]* 1/4 wave ground plane vertical omni-directional antenna type This is a good metal base antenna for being a quarter-wave antenna, however, as a quarter-wave antenna it is limited in what can be achieved in horizontal signal gain. It is a 1/4 wave ground plane with a free space gain of 2.15 dbi. Exactly the same as a unity gain dipole. The Astro Plane can best be described as a short J-Pole.==Antron 99 / Solarcon A99====Hy-Gain SPT-500 Super Penetrator==[[Image:20star.png]][[Image:50star.png]]* 5/8th wave vertical ground plane typeThis antenna is a half wave over a quarter wave variable mutual inductance antenna. The Antron 99 is roughly 18 feet long and is made of 3 fiberglass sections which screw together. Inside the shell the actual radiating element of the antenna is just a 16 awg wire. The truth is that other antennas of better quality and performance will easily outperform the A99 at pretty much any height. The Antron 99 was popular due mostly to hype and the very low price. A good 5/8th wave metal antenna will outperform the A99 under any conditions. The Antron 99 is also known to be bad for causing interference. If mounted low to the ground the signal will find its way into your TV, stereo, phone and computer speakers. Claims by Solarcon of 9.9 dBi gain are over inflated and misleading. In conclusion this was probably the biggest hyped CB antenna ever made.==Interceptor 10K==* 5/8 wave vertical antenna type* 1/2 wave vertical antenna type[[Category:Radio]][[Category:CB Radio]]