Adcock antenna

[ ad-kok ]

/ ˈæd kɒk /

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noun Electronics.

an antenna used for direction-finding, consisting of a pair of vertical dipoles.

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Origin of Adcock antenna

Probably earlier than 1955–60; named after its inventor

The mission itself is simply a small computer powered by solar cells, with an antenna transmitting at 145.980 MHz.
Luxembourg and China Team Up on Private Mission to the Moon|Matthew R. Francis|October 26, 2014|DAILY BEAST
You cannot just come up with a vampire who is green and has an antenna.
Vampires without Glitter or Girl Problems: Inside Guillermo del Toro’s ‘The Strain’|Andrew Romano|July 14, 2014|DAILY BEAST
Holding a portable antenna high over his head, he surveyed the area as it emitted a series of telling bleeps.
Borana Joins the Fight to Save Kenya’s Rhinos…and Wants You to Help Too|Joanna Eede|February 18, 2014|DAILY BEAST
Yet with the phone simply "on," the scientists found a significant change in brain activity in the areas closest to its antenna.
Study Finds Cellphone Radiation Changes Brain Activity|Claudia Kalb|February 22, 2011|DAILY BEAST

His cellphone, he says proudly, is the kind that still has an antenna, and he uses it, naturally, only to make phone calls.
Is Alex Trebek in Jeopardy?|Daniel Stone|February 13, 2011|DAILY BEAST
For the antenna and lead-in and ground wires, Jessie purchased three hundred feet of copper wire, number fourteen.
The Campfire Girls of Roselawn|Margaret Penrose
I discovered a short between the automatic trigger and the ship's secondary communication antenna.
Indirection|Everett B. Cole
Arcot pointed toward a tall, oddly-shaped antenna that rose from the highest building of the city.
Islands of Space|John W Campbell
That antenna is similar to those we found on the planets of the Black Star; it's a heat screen.
Islands of Space|John W Campbell
After making a careful mark on the setting circle, Jason turned the receiving antenna through one hundred eighty degrees of arc.
Deathworld|Harry Harrison