Antenna Gain. Post #1115.
Antenna Gain (http://www.eham.net/articles/38645). Author: Robin Cross (W0FEN). Accessed on 29 April 2017, 04:55 hrs, UTC. Please click link to read the full article. Comment: A simple, excellently phrased tutorial on Antenna Gain/Antenna Directionality for VHF/UHF by broadcast engineer Robin Cross (W0FEN). Robin discusses the pros and cons of having "gain" antennas for VHF/UHF mobile work. Robin says there are times when a simple 1/4 wavelength whip will produce more contacts than the 5/8 wavelength "gain" antennas being touted in the media. He cites several examples where a shorter antenna will often prove more satisfactory than a higher gain mobile antenna. Robin says you can use a simple test to determine if a "gain" antenna is necessary for your mobile operation: To visualize this, hold your hand out with the first two fingers in a V shape. Your fingers should be above and below horizontal. As you rotate your hand vertically, the li...