A high-gain antenna (HGA) is an antenna with a focused, narrow radiowave beam width. This narrow beam width allows more precise targeting of the radio signal - also known as a directional antenna. Most commonly referred to during space missions, these antennas are also in use all over Earth, most successfully in flat, open areas where no mountains lie to disrupt radiowaves.
Other articles related to "antenna":
... Parabolic antenna - the 70m antenna at Goldstone Helical antenna A Yagi-Uda antenna ... the director a bit (5%) shorter A giant phased-array radar in Alaska Holmdel Horn Antenna in Holmdel, New Jersey Built to support the Echo satellite communication program, it was later used in ... The HGA (a parabolic antenna) is the large bowl-shaped object ...