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ANTENNA Definition & Meaning - Merriam-Webster
: a usually metallic device (such as a rod or wire) for radiating or receiving radio waves . a TV antenna. 3. antennae plural : a special sensitivity or receptiveness.
www.merriam-webster.com
www.merriam-webster.com
Antenna (radio) - Wikipedia
An antenna (American English) or aerial (British English) is an electronic device that converts an alternating electric current into radio waves.
en.wikipedia.org
en.wikipedia.org
TV Antennas / Audio & Video Antennas: Electronics - Amazon.com
HIDB TV Antenna for Smart TV Indoor, Digital Indoor HD Antennas with Strong Magnetic Base, Easy Installation, Long Range Reception for Local Channels 4K 1080P, ...
www.amazon.com
www.amazon.com
antenna
antenna (ænˈtɛnə) Pl. -æ, rarely -as. [a. L. antenna, in ancient use ‘a sail-yard’; usually referred to Gr. ἀνατείν-ειν to stretch out or forth. The modern use seems to begin with the L. transl. of Aristotle Περὶ ζ{wisubacu}ων ἱστορίας, by Theodorus Gaza (died 1478) in which the Gr. κεραῖαι ‘horns’ ...
Oxford English Dictionary
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Antenna - Market Data platform for the Subscription Economy
Antenna helps the world's leading brands understand the decisions subscribers make in order to thrive in a rapidly evolving subscription economy.
www.antenna.live
www.antenna.live
AntennaWeb - Antenna Signal Prediction
Why are you paying for free television? Our Antenna signal prediction service will help you evaluate alternatives to expensive cable or satellite ...
www.antennaweb.org
www.antennaweb.org
antenna prima in English - antenna prima English translation - antenna ...
antenna prima English translation: 第一触角.... Please click for detailed translation, meaning, pronunciation and example sentences for antenna prima in English
m.translation-dictionary.net
m.translation-dictionary.net
Antenna - Wikipedia
Antenna (radio), or aerial, an electronic device that transmits, receives, or detects radio waves.
en.wikipedia.org
en.wikipedia.org
Antennas Direct | TV Antennas Reinvented
Our line of TV antennas are the world's most comprehensive and powerful antennas you can find. Our specialists will help you choose the best antenna for your ...
www.antennasdirect.com
www.antennasdirect.com
tv antenna - Best Buy
Antennas Direct - ClearStream 4MAX Complete Amplified Indoor/Outdoor HDTV Antenna with Mast, Coaxial Cable, Amplifier, and 3-Way Splitter - Black
www.bestbuy.com
www.bestbuy.com
TV & Audio Antennas - Abt.com
Find reception with a suped-up antenna designed to pick up your favorite local channels with no need to pay for a cable/satellite package; ...
www.abt.com
www.abt.com
HIDB TV Antenna for Smart TV Indoor, Digital Indoor HD Antennas ...
Digital Indoor HD Antennas with Strong Magnetic Base, Easy Installation, Long Range Reception for Local Channels 4K 1080P, 10ft Long Cables
www.amazon.com
www.amazon.com
Antenna Efficiency - Antenna Theory
The antenna efficiency (or radiation efficiency) can be written as the ratio of the radiated power to the input power of the antenna: [Equation 1] Being a ratio, antenna efficiency is a number between 0 and 1. However, antenna efficiency is commonly quoted in terms of a percentage; for example, an efficiency of 0.5 is the same as 50%.
antenna-theory.com
antenna
antenna/ænˈtenə; æn`tɛnə/ n1 (pl -nae / -ni:; -ni/) either of a pair of flexible sensitive organs on the heads of insects, crustaceans, etc; feeler 触角; 触须. =>illus at butterfly 见butterfly之插图.2 (pl ~s) (US) = aerial1 （无线电或电视的）天线.
牛津英汉双解词典
prophetes.ai
Find height of the triangle (antenna) given angle of elevation and displacement from base > A man standing near a radio station antenna observes that the angle of elevation to the top of the antenna is $A = 63°$. He t...
$$\frac{\text{height}}{\text{distance}}=\tan(63°)\quad\text{and}\quad\frac{\text{height}}{\text{distance}+130}=\tan(49°)$$ therefore $$\begin{align} &&\tan(63°)\times d&=d\times\tan(49°)+130\times\tan(49°)\\\ \implies &&d&=\frac{130\times\tan(49°)}{(\tan(63°)-\tan(49°))}\\\ \implies &&\text{height}&...
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