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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
The most widely used types of feed line are coaxial cable, twin-lead, ladder line, and at microwave frequencies, waveguide. Particularly with a transmitting antenna, the feed line is a critical component that must be adjusted to work correctly with the antenna and transmitter. Each type of transmission line has a specific characteristic impedance.
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.
The Indiana DNR partners with organizations and hunters across the state to feed the hungry. After years of decline, the program is back on the rise. Indiana hunters help feed nearly 200,000 ...
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 ...
The Indiana Southern began operations with a fleet of 10 ex-CSX EMD GP40 locomotives which were rebuilt without dynamic brakes and identified as GP40-1s. As of 2018, the ISRR operated 10 ex-BNSF EMD SD40-2 locomotives acquired from First Union Railway Equipment in 2013 after the railroad became Genesee & Wyoming property.
Fishers is a city in Fall Creek and Delaware townships in Hamilton County, Indiana, United States.As of the 2020 census the population was 98,677. A suburb of Indianapolis, Fishers has grown rapidly in recent decades: about 350 people lived there in 1963, 2,000 in 1980, and only 7,500 as recently as 1990.
The Indiana Railroad was created on July 2, 1930, when Midland Utilities purchased the Union Traction Company of Indiana (UTC) and transferred ownership to the IR. Union Traction (UTC) was the largest interurban system in Indiana with 410 miles (660 km) of interurban trackage and 44 miles (71 km) of streetcar lines in Anderson, Elwood, Marion and Muncie.