when they first turned on the antenna how many degrees were they getting ?

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https://en.wikipedia.org › wiki › Antenna_(radio)

https://en.wikipedia.org › wiki › Antenna_(radio)
Antenna (radio) – Wikipedia
The first antennas were built in 1888 by German physicist Heinrich Hertz in his … as well as all horizontal angles is called an isotropic radiator however these cannot exist in practice nor would they be particularly desired. For most terrestrial communications, rather, there is an advantage in reducing radiation toward the sky or ground in favor of horizontal direction(s). A dipole antenna …

https://jemengineering.com › blog-antennas-a-history

https://jemengineering.com › blog-antennas-a-history
Antenna History: Trends in Antenna Design – JEM Engineering
A relatively simple and widely used antenna, the horn antenna, can date its origins back to the late 1800s. However, it wasn’t until decades later, during the World War II era, that it became popular. In 1938, American inventor Wilmer Lanier Barrow invented the first modern horn antenna, following his invention of the waveguide in 1936.

https://www.antenna-theory.com › intro › history.php

https://www.antenna-theory.com › intro › history.php
The Antenna History Page – Antenna Theory
By 1901, Marconi was sending information across the atlantic. For a transmit antenna, he used several vertical wires attached to the ground. Across the Atlantic Ocean, the receive antenna was a 200 meter wire held up by a kite [1]. In 1906, Columbia University had an Experimental Wireless Station where they used a transmitting aerial cage. This …

https://www.ahsystems.com › articles › Understanding-antenna-gain-beamwidth-directivity.php

https://www.ahsystems.com › articles › Understanding-antenna-gain-beamwidth-directivity.php
Understanding Antenna Gain, Beamwidth, And Directivity – A.H. Systems
Half-power beamwidth: 80 deg x 360 deg. Monopole Antennas. Gain: 6 dBi at best. Half-power beamwidth: 45 deg x 360 deg. Biconical Antennas. Gain: up to 4 dBi. Half-power beamwidth: 20-100 deg x 360 deg. λ/2 Dipole (Half-Wave Dipole Antenna) Gain: 2.15 dBi.

https://link.springer.com › chapter › 10.1007 › 978-1-4615-2758-9_20

https://link.springer.com › chapter › 10.1007 › 978-1-4615-2758-9_20
The First Antenna and Wireless Telegraph, Personal … – SpringerLink
This is the story of the early history of wireless communications using antennas. The antenna was conceived by Dr. Mahlon Looms, a Washington, D.C. dentist, in 1864–at the same time that Prof. James Clerk Maxwell first presented his equations to the Royal Society in…

https://www.allaboutcircuits.com › technical-articles › an-introduction-to-antenna-basics

https://www.allaboutcircuits.com › technical-articles › an-introduction-to-antenna-basics
An Introduction to Antenna Basics – Technical Articles – All About Circuits
This wire was the first antenna transmitter and the compass needle the first receiver. The scientists just did not know it at the time. While not terribly elegant, it provided a clue about the way the universe worked—that charges moving through a wire create a magnetic field that is perpendicular to the wire.

https://www.britannica.com › technology › antenna-electronics

https://www.britannica.com › technology › antenna-electronics
Antenna | electronics | Britannica
antenna, also called Aerial, component of radio, television, and radar systems that directs incoming and outgoing radio waves. Antennas are usually metal and have a wide variety of configurations, from the mastlike devices employed for radio and television broadcasting to the large parabolic reflectors used to receive satellite signals and the radio waves generated by distant astronomical …

https://en.wikipedia.org › wiki › Television_antenna

https://en.wikipedia.org › wiki › Television_antenna
Television antenna – Wikipedia
It is difficult to design a single antenna to receive such a wide wavelength range, and there is an octave gap from 216 to 470 MHz between the VHF and UHF frequencies. So traditionally separate antennas (or on outdoor antennas separate sets of elements on a single support boom) have been used to receive the VHF and UHF channels. [4]

https://www.antenna-theory.com › basics › directivity.php

https://www.antenna-theory.com › basics › directivity.php
Directivity – Antenna-Theory.com
An antenna that radiates equally in all directions would have effectively zero directionality, and the directivity of this type of antenna would be 1 (or 0 dB). [Silly side note: When a directivity is specified for an antenna, what is meant is ‘peak directivity’.

https://www.tvobscurities.com › 2013 › 05 › classic-tv-on-tv-antenna-tv

https://www.tvobscurities.com › 2013 › 05 › classic-tv-on-tv-antenna-tv
Classic TV on TV: Antenna TV – Television Obscurities
Here are the results: Sampling of Antenna Episode Lengths, May 2013 Hazel – 22:18 Crisis (aka Suspense Theatre) #1 – 50:19 Crisis (aka Suspense Theatre) #2 – 50:20 McHale’s Navy – 25:26 Bachelor Father – 25:29 Father Knows Best – 22:36 Dennis the Menace – 22:31

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