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en.wikipedia.org/wiki/Noise_(radio)

In radio reception, noise is the superposition of white noise and other disturbing influences on the signal, caused either by thermal noise and other electronic noise from receiver input circuits or by interference from radiated electromagnetic noise ... IEEE Transactions on Electromagnetic Compatibility 41 (2), May 1999.

en.wikipedia.org/wiki/Radio_telescope

Antenna of UTR-2 low frequency radio telescope, Kharkiv region, Ukraine. Consists of an array of 2040 cage dipole elements. A radio telescope is a specialized antenna and radio receiver used to receive radio waves from .... Projected separation between any two telescopes, as seen from the radio source, is called a ...

en.wikipedia.org/wiki/Multipath_propagation

Please help to improve this article by introducing more precise citations. ( November 2009) (Learn how and when to remove this template message). In wireless telecommunications, multipath is the propagation phenomenon that results in radio signals reaching the receiving antenna by two or more paths. ... Multipath causes multipath interference including constructive and ...

www.answers.com/Q/Use_of_interference_between_two_radio_signals_to_improve_radio_images

Use of interference between two radio signals to improve radio images? ... What is the difference between electromagnetic interference and radio frequency ...

www.explainthatstuff.com/radio.html

5 days ago ... Photo: An antenna to catch waves, some electronics to turn them back into sounds, ... 2) The radio waves travel through the air at the speed of light. ... The speed is simply how fast the wave travels between two places. ... radio is broadcast; amplitude modulation is the technique used by AM radio stations.

www.selfhelpandmore.com/interference/am-fm-radio-interference.php

Find out information about AM/FM radio interference and read about simple steps ... As the use of transmitters, receivers and communication devices increases, so do ... Proper grounding and good connections between the accessory and the .... A directional antenna can boost the weaker signal, provided of course, the two ...

www.reaktor.com/blog/radio-waves-packets-software-defined-radio

Radio waves are used to transfer information all around us. ... efficiency is a must, then traditional hardware radios are still probably the better choice. ... The filter helps us to reduce the interference with nearby frequencies caused by ... at a fixed speed, so if the phase change between two consecutive samples increases, the ...

public.nrao.edu/telescopes/radio-frequency-interference

On the right is the VLA's image of the same star when a satellite was passing within ... The radio signals arriving on Earth from astronomical objects are extremely ... Similarly, TV stations use different frequencies than, say, police two- way radios. ... uses continues to increase, the threats to radio astronomy from inadequately ...

www.astronomynotes.com/telescop/s4.htm

Sep 14, 2011 ... This material (including images) is copyrighted! ... center of the Milky Way as part of his research on the interference on transatlantic phone lines. ... After the war, astronomers adapted the technology to detect radio waves coming from space. ... A radio telescope uses a large metal dish or wire mesh, usually ...