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The G5RV antenna is a dipole with a symmetric resonant [1] feeder line, which serves as impedance matcher for a 50 Ω coax cable to the transceiver. [ 2 ] [ 3 ] Origin
In a radio antenna, the feed line (feedline), or feeder, is the cable or other transmission line that connects the antenna with the radio transmitter or receiver.In a transmitting antenna, it feeds the radio frequency (RF) current from the transmitter to the antenna, where the energy in the current is radiated as radio waves.
A Goubau line or Sommerfeld–Goubau line, [1] or G-line for short, is a single-wire transmission line used to conduct radio waves at UHF and microwave frequencies. [2] [3] [4] The dielectric coated transmission line was invented by F. Harms [5] in 1907 and George J. E. Goubau [6] in 1950, based on work on surface waves on wires from 1899 by Arnold Sommerfeld.
Twin lead is mainly used as an antenna feedline at shortwave and VHF frequencies, to connect radio receivers and transmitters to their antennas. It can have significantly lower signal loss than miniature flexible coaxial cable , the main alternative type of feedline at these frequencies; for example, type RG-58 coaxial cable loses 6.6 dB per ...
An antenna tuner, a matchbox, transmatch, antenna tuning unit (ATU), antenna coupler, or feedline coupler is a device connected between a radio transmitter or receiver and its antenna to improve power transfer between them by matching the impedance of the radio to the antenna's feedline. Antenna tuners are particularly important for use with ...
All dogs shed, [5] and it is the dog's dander and saliva that trigger most allergic reactions. [6] Allergists do recognize that at times a particular allergy patient will be able to tolerate a particular dog (and many Griff owners consider these dogs hypoallergenic), but it may be that "the luck of the few with their pets cannot be stretched to ...
Meanwhile, a narrator says, “Robert F. Kennedy Jr. wants to restore abortion rights nationally,” adding that he has “a long record fighting for abortion rights. That’s the real RFK.”
List is in order of place of publication. Indiana Republic Times; Anderson Herald Bulletin – Anderson; The Herald Republican – Angola; The Star – Auburn; The Herald Tribune – Batesville