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2. Antenna types - Wikipedia

   en.wikipedia.org/wiki/Antenna_types

   A whip antenna with several rods extending horizontally from base of the whip in a star-shaped pattern, similar to an upside-down radiate crown, that form the artificial, elevated ground plane that gives the antenna its name. The ground plane rods attach to the ground wire of the feedline, the other wire feeds the whip.

3. Whip antenna - Wikipedia

   en.wikipedia.org/wiki/Whip_antenna

   A whip antenna is a form of monopole antenna. The antenna is designed to be flexible so that it does not break easily, and the name is derived from the whip-like motion that it exhibits when disturbed. Whip antennas for portable radios are often made of a series of interlocking telescoping metal tubes, so they can be retracted when not in use.

4. Log-periodic antenna - Wikipedia

   en.wikipedia.org/wiki/Log-periodic_antenna

   The most common form of log-periodic antenna is the log-periodic dipole array or LPDA, The LPDA consists of a number of half-wave dipole driven elements of gradually increasing length, each consisting of a pair of metal rods.

5. California Department of Motor Vehicles - Wikipedia

   en.wikipedia.org/wiki/California_Department_of...

   The first act regulating the use of automobiles for safety reasons in California was established by the Vehicle Act of 1915. [6] The provisions of the first Vehicle Act relating to the department went into effect 90 days after the close of that legislative session. The department of Motor Vehicles was within the Department of Finance in 1921.

6. California racing board approves restrictive whip rule - AOL

   www.aol.com/news/california-racing-board...

   Jockeys competing in California won’t be allowed to strike a horse more than six times during a race, and then only in an underhanded position, according to a new rule approved by the California ...

7. Ground plane - Wikipedia

   en.wikipedia.org/wiki/Ground_plane

   For a monopole antenna (a), the Earth acts as a ground plane to reflect radio waves directed downwards, making them seem to come from a virtual "image antenna" (b).In Telecommunications, a ground plane is a flat or nearly flat horizontal conducting surface that serves as part of an antenna, to reflect the radio waves from the other antenna elements.