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Radio Waves
 
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What are Radio Waves and how do they work?
Views: 509702 TheOnLineEngineer
Electromagnetic Spectrum: Radio Waves
 
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http://www.facebook.com/ScienceReason ... [email protected]: EMS Electromagnetic Spectrum (Episode 2) - Radio Waves The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object is the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object. --- Please SUBSCRIBE to Science & Reason: • http://www.youtube.com/Best0fScience • http://www.youtube.com/ScienceTV • http://www.youtube.com/FFreeThinker --- MEASURING THE ELECTROMAGNETIC SPECTRUM The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes - visible light that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation. Other examples of EM radiation are microwaves, infrared and ultraviolet light, X-rays and gamma-rays. Hotter, more energetic objects and events create higher energy radiation than cool objects. Only extremely hot objects or particles moving at very high velocities can create high-energy radiation like X-rays and gamma-rays. • http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html --- RADIO WAVES Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Like all other electromagnetic waves, they travel at the speed of light. Naturally-occurring radio waves are made by lightning, or by astronomical objects. Artificially-generated radio waves are used for fixed and mobile radio communication, broadcasting, radar and other navigation systems, satellite communication, computer networks and innumerable other applications. Different frequencies of radio waves have different propagation characteristics in the Earth's atmosphere; long waves may cover a part of the Earth very consistently, shorter waves can reflect off the ionosphere and travel around the world, and much shorter wavelengths bend or reflect very little and travel on a line of sight. Discovery and utilization: Radio waves were first predicted by mathematical work done in 1865 by James Clerk Maxwell. Maxwell noticed wavelike properties of light and similarities in electrical and magnetic observations. He then proposed equations, that described light waves and radio waves as waves of electromagnetism that travel in space. In 1887, Heinrich Hertz demonstrated the reality of Maxwell's electromagnetic waves by experimentally generating radio waves in his laboratory. Many inventions followed, making practical the use of radio waves to transfer information through space. Propagation: The study of electromagnetic phenomena such as reflection, refraction, polarization, diffraction and absorption is of critical importance in the study of how radio waves move in free space and over the surface of the Earth. Different frequencies experience different combinations of these phenomena in the Earth's atmosphere, making certain radio bands more useful for specific purposes than others. Radio communication: In order to receive radio signals, for instance from AM/FM radio stations, a radio antenna must be used. However, since the antenna will pick up thousands of radio signals at a time, a radio tuner is necessary to tune in to a particular frequency (or frequency range). This is typically done via a resonator (in its simplest form, a circuit with a capacitor and an inductor). The resonator is configured to resonate at a particular frequency (or frequency band), thus amplifying sine waves at that radio frequency, while ignoring other sine waves. Usually, either the inductor or the capacitor of the resonator is adjustable, allowing the user to change the frequency at which it resonates. In medicine: Radio frequency (RF) energy has been used in medical treatments for over 75 years generally for minimally invasive surgeries and coagulation, including the treatment of sleep apnea. • http://en.wikipedia.org/wiki/Radio_waves .
Views: 358857 Best0fScience
What is RADIO FREQUENCY? What does RADIO FREQUENCY mean? RADIO FREQUENCY meaning & explanation
 
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What is RADIO FREQUENCY? What does RADIO FREQUENCY mean? RADIO FREQUENCY meaning - RADIO FREQUENCY definition - RADIO FREQUENCY explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. Radio frequency (RF) is any of the electromagnetic wave frequencies that lie in the range extending from around 3 kHz to 300 GHz, which include those frequencies used for communications or radar signals. RF usually refers to electrical rather than mechanical oscillations. However, mechanical RF systems do exist (see mechanical filter and RF MEMS). Although radio frequency is a rate of oscillation, the term "radio frequency" or its abbreviation "RF" are used as a synonym for radio – i.e., to describe the use of wireless communication, as opposed to communication via electric wires. Electric currents that oscillate at radio frequencies have special properties not shared by direct current or alternating current of lower frequencies. The energy in an RF current can radiate off a conductor into space as electromagnetic waves (radio waves); this is the basis of radio technology. RF current does not penetrate deeply into electrical conductors but tends to flow along their surfaces; this is known as the skin effect. RF currents applied to the body often do not cause the painful sensation of electric shock as do lower frequency currents. This is because the current changes direction too quickly to trigger depolarization of nerve membranes. However they can cause superficial but serious burns called RF burns. RF current can easily ionize air, creating a conductive path through it. This property is exploited by "high frequency" units used in electric arc welding, which use currents at higher frequencies than power distribution uses. Another property is the ability to appear to flow through paths that contain insulating material, like the dielectric insulator of a capacitor. This is because capacitive reactance in a circuit decreases with frequency. In contrast, RF current can be blocked by a coil of wire, or even a single turn or bend in a wire. This is because the inductive reactance of a circuit increases with frequency. When conducted by an ordinary electric cable, RF current has a tendency to reflect from discontinuities in the cable such as connectors and travel back down the cable toward the source, causing a condition called standing waves. Therefore, RF current must be carried by specialized types of cable called transmission line. To receive radio signals an antenna must be used. However, since the antenna will pick up thousands of radio signals at a time, a radio tuner is necessary to tune into a particular frequency (or frequency range). This is typically done via a resonator – in its simplest form, a circuit with a capacitor and an inductor form a tuned circuit. The resonator amplifies oscillations within a particular frequency band, while reducing oscillations at other frequencies outside the band. Another method to isolate a particular radio frequency is by oversampling (which gets a wide range of frequencies) and picking out the frequencies of interest, as done in software defined radio. The distance over which radio communications is useful depends significantly on things other than wavelength, such as transmitter power, receiver quality, type, size, and height of antenna, mode of transmission, noise, and interfering signals. Ground waves, tropospheric scatter and skywaves can all achieve greater ranges than line-of-sight propagation. The study of radio propagation allows estimates of useful range to be made. Radio frequency (RF) energy, in the form of radiating waves or electrical currents, has been used in medical treatments for over 75 years, generally for minimally invasive surgeries using radiofrequency ablation including the treatment of sleep apnea. Magnetic resonance imaging (MRI) uses radio frequency waves to generate images of the human body.
Views: 12094 The Audiopedia
The lowest frequency humanmade radio signals, I can receive
 
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This is the first station that I`m able to receive on the airwaves. Under this VLF frequency I can listen only the noise from natural sources. I do not know what is this, but I think that it will be BEACONs for submarines, or anything like this.
Views: 1901 Carlos Mourato
AM and FM Radio As Fast As Possible
 
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AM & FM radio have been around since way before the digital age. How can radios decode AM & FM signals only using analog technology? Freshbooks message: Head over to http://freshbooks.com/techquickie and don’t forget to enter Tech Quickie in the “How Did You Hear About Us” section when signing up for your free trial. Follow: http://twitter.com/linustech Join the community: http://linustechtips.com
Views: 378349 Techquickie
How to increase radio signal/frequency - akash fun
 
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Easy way to enjoy your favourite radio channel.
Views: 8451 AKASH FUN
H4cking Radio Devices, Intercepting Radio Signals, How Radio Signals can be h4cked, GSM Signals H4ck
 
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hello doston ye video sirf education ke liye hai, is video men maine radio signals ko kaise h4ck karte hain or radio signals ko h4ck karne wali kuch devices ke baare men bataya hai, asha hai aap logon ko acchaa lagega. pls like and subscribe and also share it. GSM h4cking tutorials: http://activeation.com/8Mpw http://activeation.com/8Mvh मेरे ऑनलाइन हैकिंग कोर्सेज : http://activeation.com/2VuT Ignore Below: Radio H4ckingBurayı How To H4ck Radio Frequencies: Hijacking Fm Radio With A ... How To Hack Radio Frequencies: Building A Radio Listening Station ... Radio Hacks | Hackaday Hacking Fm Radio Station - Youtube How To Listen To Any Radio Signal Ever And Hack The World ... Hacking Phones With Radio Waves - Threat Wire - Youtube Things You Can Hack With Radio Frequency? : Hacking - Reddit Transistor Radio Hack!: 6 Steps (With Pictures) - Instructables Hacking The Wireless World With Software Defined Radio - Black Hat Radio Hacking | Hacking | Cyber Security - The Hacker News Fifa 18 Hacker Android Oyun Club Null Byte Wonderhowto Fifa Mobile Hack Hacking The Radio Manager: The Secret Function Of Your Favourite ... Local Radio Station Keeps Getting Hijacked By Song About ... Henry Hacking | Free Listening On Soundcloud Hackrf One - Your Radio Hacking Tool ` Attify Store Whoever Is Hacking Radio Stations To Play Yg`S &Quot;Fdt&Quot; Is A Hero Fosdem 2018 - Byor: Bring-Your-Own-Radio Hacking Session Radio Hacking Made Easy: The Aircraft Band Receiver | Make: Isis Hacks Swedish Radio And Plays Recruitment Song | Daily Mail ... Broadcast Signal Intrusion - Wikipedia Fifa 18 Hacker Android Oyun Club Null Byte Wonderhowto Fifa Mobile Hack Radio Hacking Radio, Hacking, Fifa, 18, Hacker, Android, Oyun, Club, Null, Byte, Wonderhowto, Mobile, Hack حر الأخلاقية القرصنة بالطبع বিনামূল্যে নৈতিক হ্যাকিং কোর্স Gratis Etisk Hacking Course Gratis Ethische Hacking Course Libreng Pagsubok sa Etikal na Pag-hack Cours gratuit de piratage éthique უფასო ეთიკური ჰაკინგის კურსი Free Ethical Hacking Kurs Ελεύθερο ηθικό μάθημα πειρατείας મફત નૈતિક હેકિંગ કોર્સ निशुल्क एथिकल हैकिंग कोर्स Ingyenes etikai hacker tanfolyam Corso libero di hacking etico 無料の倫理ハッキングコース ಫ್ರೀ ಎಥಿಕಲ್ ಹ್ಯಾಕಿಂಗ್ ಕೋರ್ಸ್ 무료 윤리적 해킹 코스 Ethical Hacking liberum cursus സ്വതന്ത്ര നൈതിക ഹാക്കിംഗ് കോഴ്സ് मोफत नैतिक हॅक कोर्स د وړیا اخلاقي هیکنگ کورس درس آزاد هک اخلاقی Curs de etică hacking gratuit Бесплатный курс этических хакеров Фрее Етхицал Хацкинг Цоурсе مفت اخلاقي هيڪنگ ڪورس Curso de Hacking Ético Gratis Gratis Ethical Hacking Course இலவச நெறிமுறை ஹேக்கிங் பாடநெறி หลักสูตรปราศจากจริยธรรมฟรี مفت اخلاقی ہیکنگ کورس Ücretsiz Etik Hacking Kursu Lord of the Land by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1400022 Artist: http://incompetech.com/
Views: 916 Tech Street
FM Radio Electronics: Frequency Modulation: Basic Principles 1964 US Army Training Film
 
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more at http://scitech.quickfound.net "FREQUENCY MODULATION - PART I - BASIC PRINCIPLES: FUNDAMENTALS OF AM AND FM RADIO COMMUNICATION, HOW FM ELIMINATES PROBLEM OF ELECTRICAL INTERFERENCE, FUNCTIONING OF FM RADIO EXAMINED IN DETAIL." Reupload of a previously uploaded film, in one piece instead of multiple parts, and with improved video & sound. US Army Training Film TF11-3482 The 1944 film "Basic Principles of Frequency Modulation" is also excellent: https://www.youtube.com/watch?v=mu3ASt2kwFo Public domain film from the US National Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original). http://creativecommons.org/licenses/by-sa/3.0/ http://en.wikipedia.org/wiki/Frequency_modulation In telecommunications and signal processing, frequency modulation (FM) conveys information over a carrier wave by varying its instantaneous frequency. This contrasts with amplitude modulation, in which the amplitude of the carrier is varied while its frequency remains constant. In analog applications, the difference between the instantaneous and the base frequency of the carrier is directly proportional to the instantaneous value of the input-signal amplitude. Digital data can be sent by shifting the carrier's frequency among a range of settings, a technique known as frequency-shift keying. FSK (digital FM) is widely used in data and fax modems. Morse code transmission has been sent this way, and FASK was used in early telephone-line modems. Radioteletype also uses FSK. FM modulation is also used in telemetry, radar, seismic prospecting and newborn EEG seizure monitoring. Frequency modulation is known as phase modulation when the carrier phase modulation is the time integral of the FM signal. FM is widely used for broadcasting music and speech, two-way radio systems, magnetic tape-recording systems and some video-transmission systems. In radio systems, frequency modulation with sufficient bandwidth provides an advantage in cancelling naturally-occurring noise. Radio Edwin Howard Armstrong (1890--1954) was an American electrical engineer who invented wideband frequency modulation (FM) radio. He patented the regenerative circuit in 1914, the superheterodyne receiver in 1918 and the super-regenerative circuit in 1922. Armstrong presented his paper, "A Method of Reducing Disturbances in Radio Signaling by a System of Frequency Modulation", (which first described FM radio) before the New York section of the Institute of Radio Engineers on November 6, 1935. The paper was published in 1936. As the name implies, wideband FM (WFM) requires a wider signal bandwidth than amplitude modulation by an equivalent modulating signal; this also makes the signal more robust against noise and interference. Frequency modulation is also more robust against signal-amplitude-fading phenomena. As a result, FM was chosen as the modulation standard for high frequency, high fidelity radio transmission, hence the term "FM radio" (although for many years the BBC called it "VHF radio" because commercial FM broadcasting uses part of the VHF band—the FM broadcast band). FM receivers employ a special detector for FM signals and exhibit a phenomenon known as the capture effect, in which the tuner "captures" the stronger of two stations on the same frequency while rejecting the other (compare this with a similar situation on an AM receiver, where both stations can be heard simultaneously)... An FM signal can also be used to carry a stereo signal; this is done with multiplexing and demultiplexing before and after the FM process. The FM modulation and demodulation process is identical in stereo and monaural processes. A high-efficiency radio-frequency switching amplifier can be used to transmit FM signals (and other constant-amplitude signals)... Normal (analog) TV sound is also broadcast using FM...
Views: 50106 Jeff Quitney
Radio Frequency in Hindi - अब हिंदी मे
 
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today i am going to explain you what is radio frequency and how it works and how to measure this RF Signal. more in formation and more tutorials available please visit this links https://www.saishtech.com https://www.facebook.com/saishtech https://www.linkedin.com/in/deepak-raut-9841ab43/ https://twitter.com/saishtech https://plus.google.com/u/0/+hitshortfilms -~-~~-~~~-~~-~- Download Desktop and Laptop drivers for HP, Lenovo, Dell, Sony, Asus, Acer etc. http://saishtech.com/ Download HP, Lenovo, Dell, Sony, Asus, Acer Laptop Motherboard Schematics http://saishtech.com/schematics/ Download Laptop & Desktop Bios http://saishtech.com/ Download HP, Canon, Epson, Brother, Ricoh, Samsung, Xerox Printer Drivers & Reseters http://saishtech.com/ Watch Laptop Repair Videos and Laptop Repair Course in Hindi Follow us on Twitter https://twitter.com/saishtech Follow us on facebook https://www.facebook.com/hitshortfilm Follow us on Google Plus https://plus.google.com/u/0/117581417171785096287 Follow us on Linkedin https://www.linkedin.com/in/deepak-raut-9841ab43/ Follow us on Reddit https://www.reddit.com/user/saishtech -~-~~-~~~-~~-~-
Views: 9244 Laptop Repair
Radio Transmission using the HP 8656A Frequency Generator
 
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Testing the Modulation capabilities of the Hewlett Packard 8656A Frequency Generator.
Views: 3459 DrCassette
Amplitude Modulation vs Frequency Modulation │ AM vs FM │ Difference Between AM and FM
 
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Amplitude Modulation vs Frequency Modulation │ AM vs FM │ Difference Between AM and FM AM or Amplitude Modulation and FM or Frequency Modulation are ways of broadcasting radio signals. Both transmit the information in the form of electromagnetic waves. AM works by modulating the amplitude of the signal or carrier transmitted according to the information being sent, while the frequency remains constant. This differs from FM technology in which information is encoded by varying the frequency of the wave and the amplitude is kept constant. More detail:- http://www.learningengnr.com/amplitude-modulation-vs-frequency-modulation%E2%94%82difference-fm/ More videos:- Power Factor Correction - Power Factor Correction Methods - Power Factor https://www.youtube.com/watch?v=ADilk28vfj0 Series and Parallel Circuits - Series VS Parallel - Difference between Series and Parallel Circuits https://www.youtube.com/watch?v=sbocWMTmPK8 Please visit my site: www.learningengnr.com/ Please visit our Blog: https://learningengineering1994.blogspot.com/ Connect with me in my social page: https://www.facebook.com/Learning.Engring/ Subscribe my youtube channel: https://www.youtube.com/learningengineering/ Find us On Pinterest: https://www.pinterest.com/konok13/learning-engineering/ Find us On Google+: https://plus.google.com/u/0/+LearningEngineering Find us On Twitter: https://twitter.com/konokkamruzzam Find us On Linkedin : https://www.linkedin.com/in/konok-kamruzzaman-135169137/
Views: 12941 Learning Engineering
Beginners: Radio Frequency, Band and Spectrum
 
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This video explains electromagnetic spectrum, frequency, band, bandwidth and how these concepts are used in mobile technology. We also look at antennas for smartphones including 2G, 3G, 4G and 5G
Views: 16538 3G4G
How to make a FM Frequency Jammer
 
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Only works from 70 Mhz - 115Mhz. Range: unknown. Its illegal in some countries so don't do it unless you want to annoy your siblings or you feel bored and want to explore electro-physics.
Views: 32818 ronwire182
WW2 Zombies Shadowed Throne: Easiest Way To Set Up Radio Frequency
 
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WW2 Zombies Shadowed Throne: Easiest Way To Set Up Radio Frequency Hope you enjoy our content, please feel free to like, comment, and subscribe if you want to see more of our content!! Twitter: https://twitter.com/BustersSkull Playlist: A Way Out Platinum Walkthrough: https://www.youtube.com/playlist?list=PLmRtRvETYZ61WUcTmZU2IAbgSTet-5hhA A Way Out Platinum Trophy Guide: https://www.youtube.com/playlist?list=PLmRtRvETYZ61IsBLOjQaDvVWmDBbcnPjr
Views: 20223 Skull Busters
Radio Frequency Interference: The Invisible Battleground - Signal Interference Congestion (1961)
 
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US Army film MF11-9416 Facilities at the Electronic Environmental Test Facility at Fort Huachuca. Radio interference as a field army issue. US Army documentary 1962. Public domain film from the US National Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original).
Views: 683 Field Interference
Strange radio AM frequency signal
 
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I was browsing through radio stations, when I switched to A.m. frequencies, I found this. I do not know what it is.
Views: 29 Lightning Man
What is RF? Basic Training
 
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Everything you wanted to know about RF (radio frequency) technology: Cover "RF Basics" in less than 14 minutes! http://www.nxp.com/products/rf/
Views: 255621 NXP Semiconductors
Radio Frequency Mind Control - Proof of Existence
 
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Proof and evidence of existence and secret operation in Philippines. Facebook: http://www.facebook.com/profile.php?id=100001699072277&sk=wall Twitter: https://twitter.com/#!/search/realtime/erikcaja
Views: 27349 erikborcaja
#58: How to zero-beat WWV to check or adjust a Frequency Counter's accuracy
 
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This video shows how to zero-beat the WWV signal as a tool to adjust the frequency reference of an old frequency counter. It demonstrates the concept of zero-beat'ing a test signal against the WWV carrier. Since the WWV carrier is likely more accurate than any other frequency reference that most hobbiests and hams have in their labs, this is a useful technique. It can be used to check or adjust the 10MHz reference in the counter, if it has one, or can be used to very precisely set the output frequency of a signal generator which can then be used as a test signal for the frequency counter. Similar techniques can be used to adjust the frequency accuracy of a ham radio's reference. Several years ago, I wrote up a procedure that I put on my website. If can be found here: http://www.qsl.net/w2aew/adjustrig.htm
Views: 36708 w2aew
Radio Frequency (RF) Jamming
 
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http://www.sesp.com/MilitaryConvoyProtection.asp SESP offers two versions of its "ready-to-drive" JAMX military convoy protection jamming system: one is delivered, fully installed, in a Hummer H2 and one in a military shelter. Whether in military or civilian applications, protecting troop and VIP convoys from the threat of roadside bombs, or radio-controlled improvised explosive devices (RCIEDs), has become a very high priority and a tactical challenge. SESP is proud to provide the world's number one bomb jammers, supplied in specially customized vehicles. These systems provide the ultimate protection of convoys from the threat of radio-controlled road-side bombs.
Views: 25167 BombJammers
Low Frequency Accuracy
 
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A device can transmit anywhere within the operation band. There is no synchronization between the base station and the device. The Base station is able to demodulate any Sigfox signal within the operational band. For these 2 reasons, there are low-frequency accuracy constraints on the devices. This spectrum analysis shows radio signals emitted by a SIGFOX Ready device. The upper part shows a waterfall view of the operational band whereas the lower part is zooming on these signals. Sigfox network does not care about the absolute frequency of the device.
Views: 2041 SIGFOX
Hunting for Radio Frequency Interference
 
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RF interference could be causing your dropped calls. Engineers from P3 hunt down the source and shut it off: Every day, Kevin Argentieri tracks down devices that are causing radio-frequency interference, and then tries to persuade their owners to shut them off. Argentieri works for P3, a company that performs radio-frequency interference hunting for nationwide carriers including Verizon, AT&T, T-Mobile, and Sprint. American carriers pay big bucks to the U.S. Federal Communications Commission for exclusive licenses to swaths of the radio-frequency spectrum. But rogue devices are out there, and it’s Argentieri’s job to find them. He says baby monitors, cordless phones, and cell phone repeaters are three of the most common violators. Read more: https://spectrum.ieee.org/video/telecom/wireless/radio-frequency-hunters-saving-your-cell-signal
Views: 6649 IEEE Spectrum
Fallout 4 Track the Courser Radio Frequency
 
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Fallout 4 Track the Courser Radio Frequency. Get to area of maximum courser signal strength.
Views: 80335 TheGamesEntertainer
Radio Frequency Radiation Detector | Cell phone detector
 
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Energy Harvesting from Electromagnetic Signals. This project is also called as LED Power meter, for Schematic, Breadboard arrangement and more information on this project visit http://rookieelectronics.com/sensor-rf-radiation-detector/ A research on this project by an Indian guy: http://rookieelectronics.com/rf-detector-rocks/
Views: 97215 Pir Arkam
Calculate Wavelength (λ) From Frequency (ν) 002
 
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What is the wavelength (m) of an FM radio wave with frequency of 102.5 MHz?
Mini-Jammers: Radio frequency (RF) & cell signals
 
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* I do not own anything in this video, the credits goes to the respective owners.
Views: 983 Naikon
Finding the Radio Frequency on the Shadowed Throne
 
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This video will show you how to find the correct frequency on the Shadowed Throne Zombie map. You need to take the Series and Model number with the spot on the map. Using this information will give you the band and the frequency needed to get this step done! Follow Carefree Llama Gaming on: Xbox Live: ImCarefreeLlama Twitter: http://www.twitter.com/CarefreeLlama Facebook: http://www.facebook.com/CarefreeLlamaGaming Hardware I use to create videos: Capture Card - http://amzn.to/2zGsIgR Microphone - http://amzn.to/2AG1KWy Webcam - http://amzn.to/2F4PstF Support this channel on Patreon: https://www.patreon.com/CarefreeLlamaGaming
Views: 26619 Carefree Llama Gaming
Low Cost DIY EMF Protection - Radio Frequency (RF) Shielding
 
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http://www.electricsense.com/7173/cheap-rf-shield-emf/ As wireless technology grows in popularity so does our exposure to radio frequency (RF) radiation. This RF radiation is whats used to transmit data and sounds through the air. Even though you can't see it, hear it or feel it, this RF radiation is harmful. Thousands of peer reviewed studies, and field studies from around the world link these RF radiation exposures to cancer and a long list of other diseases. In 2011 RF radiation was classed as a probable carcinogen by the World Health Organization. But it's not just about cancer these exposures can provoke many symptoms, such as: Massive Fatigue Dizziness - Nausea - Vertigo Headaches & Migraines Nose Bleeds Concentration Difficulties Visual and Auditory Problems Racing Heart Rate (Tachycardia) Anxiety Depression Memory Loss Attention Deficit Skin Rash Hyperactivity ADD, ADHD Night Sweats Insomnia and more. In this video I show a dirt cheap way you can shield from ambient RF radiation exposures from cell towers, WiFi, smart meters, cordless phones and the like. No need to use expensive paints and shielding materials you can easily and effectively shield for as little as a few dollars. Watch my video to see how you can protect yourself from these electromagnetic field (EMF) exposures. For more tips on reducing your EMF exposures, see http://www.electricsense.com/ ---------------- Download my EMF Protection FREE Report: http://www.electricsense.com/ Want more videos? Checkout my channel: http://www.youtube.com/user/RadiationProtection1 Like me on Facebook: http://www.facebook.com/electricsensehealth Follow me on Twitter for latest updates: http://twitter.com/lloydburrell Follow me on Pinterest: http://pinterest.com/electricsense/
Views: 117251 Lloyd Burrell
Radio Frequency (RF) Signal Detector
 
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Presentation of a radio frequency signal detector. Details of its usage with an example. Ideal for the detection of radio emission items like wireless audio and video devices. Product available at Spytronic.com
Views: 4877 1888SPYTRONIC
Frequency, Wavelength, and the Speed of Light | a video course made easy by Crash Chemistry Academy
 
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This video describes what frequency is, how it is measured, how frequency and wavelength are related visually and mathematically, and derives the mathematical relationship between frequency, wavelength, and the speed of light CC Academy videos are easy 101 crash course tutorials for step by step Chemistry help on your chemistry homework, problems, and experiments. Check out our best lessons: - Solution Stoichiometry Tutorial: How to use Molarity - Stoichiometry - Quantum Numbers - Rutherford's Gold Foil Experiment, Explained - Covalent Bonding Tutorial: Covalent vs. Ionic bonds - Metallic Bonding and Metallic Properties Explained: Electron Sea Model - Effective Nuclear Charge, Shielding, and Periodic Properties - Electron Configuration Tutorial + How to Derive Configurations from Periodic Table - Orbitals, the Basics: Atomic Orbital Tutorial — probability, shapes, energy - Metric Prefix Conversions Tutorial - Gas Law Practice Problems: Boyle's Law, Charles Law, Gay Lussac's, Combined Gas Law —More on Light | Wiki— "Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which is visible to the human eye and is responsible for the sense of sight.[1] Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm), or 4.00 × 10−7 to 7.00 × 10−7 m, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths).[2][3] This wavelength means a frequency range of roughly 430–750 terahertz (THz). The main source of light on Earth is the Sun. Sunlight provides the energy that green plants use to create sugars mostly in the form of starches, which release energy into the living things that digest them. This process of photosynthesis provides virtually all the energy used by living things. Historically, another important source of light for humans has been fire, from ancient campfires to modern kerosene lamps. With the development of electric lights and power systems, electric lighting has effectively replaced firelight. Some species of animals generate their own light, a process called bioluminescence. For example, fireflies use light to locate mates, and vampire squids use it to hide themselves from prey. The primary properties of visible light are intensity, propagation direction, frequency or wavelength spectrum, and polarization, while its speed in a vacuum, 299,792,458 metres per second, is one of the fundamental constants of nature. Visible light, as with all types of electromagnetic radiation (EMR), is experimentally found to always move at this speed in a vacuum.[citation needed] In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not.[4][5] In this sense, gamma rays, X-rays, microwaves and radio waves are also light. Like all types of light, visible light is emitted and absorbed in tiny "packets" called photons and exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics." Wikipedia contributors. "Light." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 5 Jun. 2016. Web. 18 Jun. 2016.
Views: 114099 Crash Chemistry Academy
Radio Frequency Mind Control - Detect and Record
 
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Know if you are a victim. This is a proven self-discovered experiment. Facebook: http://www.facebook.com/profile.php?id=100001699072277&sk=wall
Views: 52835 erikborcaja
How to convert Radio Frequency Into Electricity
 
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This video is about conversion of radio Frequency into electricity. It consist of small part of my work on the project deep Mine. If you want more videos in Future then just leave the comment in the comment section below.Reviews are welcome . :D
Views: 5578 Vishal Dubey
The haunting sounds found on VLF (Very Low Frequency) Radio
 
04:59
The haunting sounds found on VLF (Very Low Frequency) shortwave radio. Because VLF waves can penetrate 120 feet into saltwater, they are used for military communication with submarines.
Views: 3073 Curt Rowlett
Change Behavior by Radio Frequency (RF Mind Control)
 
09:52
Mind control weapons without electrodes using electromagnetic fields or radio frequency. The behavior can be modified at a distance without evidence in target individual's body. Original Video about 20 minutes: (https://vimeo.com/97976508) Individuals can be individualized at a distance by their brain signatures. See: Electromagnetic Mind Control Overview (https://www.youtube.com/watch?v=80MiRiWdgOQ) This video is a parts compilation of the original video: CNN Special Report 1985 Electromagnetic Frequency Weapons (https://vimeo.com/97976508)
Views: 8049 Ziwox X
Frequency bands...Phone, satellite, Radio.....
 
00:50
Radio waves : These waves are used in radio and television communication systems. AM band is from 530 kHz to 1710 kHz. Higher frequencies upto 54 MHz are used for short waves bands. Television waves range from 54 MHz to 890 MHz. FM band is from 88 MHz to 108 MHz. Cellular phones use radio waves in ultra high frequency (UHF) band. www.edufine.net
Views: 21772 eASYtIPS4YOU
Radio Frequency Spectrum:  Radio Waves
 
03:39
Find out the properties of radio waves in electromagnetic spectrum. For more articles about RF technology, visit: http://www.rfpage.com
Views: 1095 RF Page
What Are Cell Phone Radio Frequencies? | SureCall
 
02:16
Learn more about how signal boosters work here - https://www.surecall.com/cell-phone-signal-booster-guide/ The Radio Frequency (RF) spectrum is not just what powers our AM-FM radios, it enables our cell phones and mobile devices to communicate with nearby towers. The Radio Frequency spectrum is owned by the FCC and allows our cellular devices to send and receive texts, calls, and stream data when we aren't connected to Wi-Fi. Learn more about how the RF spectrum works in this video. For more information or to find where to purchase a SureCall signal booster, visit https://www.surecall.com
Views: 234 SureCall
Analog and Digital Detector for Antennas or Radio Frequency Signals
 
00:45
This tool can detect almost all the devices that transmits radiofrequencies (hidden cameras, hidden microphones, bugs, cell phones).
Views: 4257 1888SPYTRONIC
Mobile Phone Signal Jammer Frequency Generator Modulator 9999332499
 
00:33
A working cellphone must be in constant communication with its network provider via a cell tower or base station. By sending out radio waves in cellphone frequencies, jammers launch denial-of-service attacks (DoS), causing mobile devices to lose base station communication. In mobile computing, a jammer is a mobile communications device that transmits on the same frequency range as a cellphone to create strong cell tower interference and block cellphone signals and call transmission. Jammers are usually undetectable, and users may experience minimal effects such as poor signal reception. Jamming devices may be used in any location but are typically deployed where cellphone use may be disruptive, such as in libraries and restaurants. Jammers come in a variety of shapes and sizes, including: Portable and compact devices, like mobile phones Box-shaped units that are similar to routers Larger and far-reaching briefcase-style format All jamming device types have three main parts, as follows: An antenna to connect the device A power supply or battery Circuitry, which includes a voltage-controlled oscillator, tuning circuit, noise generator and radio frequency (RF) amplification Handheld jammers are capable of disrupting signals within nine to 30 meters, while more powerful jammers create a huge bubble stretching Call or WhatsApp for Detail: 9999332499
Views: 332 Spy Shop
Radio Frequency Transmission Full Tutorial
 
23:24
DOWNLOAD CODE HERE FREE: http://robotix.com.au/#/videos/94 LIBRARY LINK HERE: http://www.resistorpark.com/arduino-virtualwire-library-download/ Learn more about this tutorial here: https://www.instructables.com/id/433-MHz-RF-Links-Theory-Circuit-and-Program/ he video above explains the basic theory that relates to data transmission, namely how electromagnetic waves are generated by antennas and how they encode 1's and 0's. Non essential information for a hobbyist, but really interesting none the less. Component list: •1 X Arduino Uno •1 X 433MHz RF link pair •3 X LED •1 X Piezo Buzzer •1 X Push Button •1 X Resistor 330Ω •50cm Single Core Wire Equipment needed: Soldering Iron Observe the schematic and the completed circuit (video tutorial also available) Make sure you do ALL of the following: 1. Connect the module in the following manner Vcc pin connects to Arduino 5V GND to Arduino GND and DATA to Arduino Pin 12 2.The button connects to Arduino pin 2 and needs to be earthed 3. The antenna needs to be soldered onto the module. The antenna is 35cm long and soldered into an antenna slot in the transmitter module. 4. The antenna is to be straight if possible. Watch the video from time: 00:40 to see the circuit built from scratch -~-~~-~~~-~~-~- Latest and Best Arduino Playlist in Collaboratio with DFRobot: https://www.youtube.com/playlist?list=PL_92WMXSLe_86NTWf0nchm-EmQIwccEye -~-~~-~~~-~~-~-
Views: 52489 Robotix
Radio Electronics: Frequency Modulation Basic Principles pt2-2 1964 US Army Training Film
 
10:35
NEW VERSION in one piece instead of multiple parts, and with improved video & sound: https://www.youtube.com/watch?v=xn6lzrMJUDs more at http://scitech.quickfound.net/ FUNDAMENTALS OF AM AND FM RADIO COMMUNICATION, HOW FM ELIMINATES PROBLEM OF ELECTRICAL INTERFERENCE, FUNCTIONING OF FM RADIO EXAMINED IN DETAIL. US Army Training Film TF11-3482 Public domain film from the National Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and equalization (the resulting sound, though not perfect, is far less noisy than the original). part 1: http://www.youtube.com/watch?v=4Qgg_upU_5s Also see TF11-2069 "Basic Principles of Frequency Modulation" (1944) http://www.youtube.com/watch?v=jXp3k0FhMIw http://en.wikipedia.org/wiki/Frequency_modulation In telecommunications and signal processing, frequency modulation (FM) conveys information over a carrier wave by varying its instantaneous frequency. This contrasts with amplitude modulation, in which the amplitude of the carrier is varied while its frequency remains constant. In analog applications, the difference between the instantaneous and the base frequency of the carrier is directly proportional to the instantaneous value of the input-signal amplitude. Digital data can be sent by shifting the carrier's frequency among a range of settings, a technique known as frequency-shift keying. FSK (digital FM) is widely used in data and fax modems. Morse code transmission has been sent this way, and FASK was used in early telephone-line modems. Radioteletype also uses FSK. FM modulation is also used in telemetry, radar, seismic prospecting and newborn EEG seizure monitoring. Frequency modulation is known as phase modulation when the carrier phase modulation is the time integral of the FM signal. FM is widely used for broadcasting music and speech, two-way radio systems, magnetic tape-recording systems and some video-transmission systems. In radio systems, frequency modulation with sufficient bandwidth provides an advantage in cancelling naturally-occurring noise. Radio Edwin Howard Armstrong (1890--1954) was an American electrical engineer who invented wideband frequency modulation (FM) radio. He patented the regenerative circuit in 1914, the superheterodyne receiver in 1918 and the super-regenerative circuit in 1922. Armstrong presented his paper, "A Method of Reducing Disturbances in Radio Signaling by a System of Frequency Modulation", (which first described FM radio) before the New York section of the Institute of Radio Engineers on November 6, 1935. The paper was published in 1936. As the name implies, wideband FM (WFM) requires a wider signal bandwidth than amplitude modulation by an equivalent modulating signal; this also makes the signal more robust against noise and interference. Frequency modulation is also more robust against signal-amplitude-fading phenomena. As a result, FM was chosen as the modulation standard for high frequency, high fidelity radio transmission, hence the term "FM radio" (although for many years the BBC called it "VHF radio" because commercial FM broadcasting uses part of the VHF band—the FM broadcast band). FM receivers employ a special detector for FM signals and exhibit a phenomenon known as the capture effect, in which the tuner "captures" the stronger of two stations on the same frequency while rejecting the other (compare this with a similar situation on an AM receiver, where both stations can be heard simultaneously). However, frequency drift or a lack of selectivity may cause one station to be overtaken by another on an adjacent channel. Frequency drift was a problem in early (or inexpensive) receivers; inadequate selectivity may affect any tuner. An FM signal can also be used to carry a stereo signal; this is done with multiplexing and demultiplexing before and after the FM process. The FM modulation and demodulation process is identical in stereo and monaural processes. A high-efficiency radio-frequency switching amplifier can be used to transmit FM signals (and other constant-amplitude signals). For a given signal strength (measured at the receiver antenna), switching amplifiers use less battery power and typically cost less than a linear amplifier. This gives FM another advantage over other modulation methods requiring linear amplifiers, such as AM and QAM. FM is commonly used at VHF radio frequencies for high-fidelity broadcasts of music and speech. Normal (analog) TV sound is also broadcast using FM. Narrowband FM is used for voice communications in commercial and amateur radio settings. In broadcast services, where audio fidelity is important, wideband FM is generally used...
Views: 27320 Jeff Quitney
Strange signal on mil frequency
 
00:24
Strange signal on mil com. Data?
Views: 5210 skarols
Radio Electronics: Frequency Modulation Basic Principles pt1-2 1964 US Army Training Film
 
15:00
NEW VERSION in one piece instead of multiple parts, and with improved video & sound: https://www.youtube.com/watch?v=xn6lzrMJUDs more at http://scitech.quickfound.net/ FUNDAMENTALS OF AM AND FM RADIO COMMUNICATION, HOW FM ELIMINATES PROBLEM OF ELECTRICAL INTERFERENCE, FUNCTIONING OF FM RADIO EXAMINED IN DETAIL. US Army Training Film TF11-3482 Public domain film from the National Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and equalization (the resulting sound, though not perfect, is far less noisy than the original). part 2: http://www.youtube.com/watch?v=JS8xlwyc6G4 Also see TF11-2069 "Basic Principles of Frequency Modulation" (1944) http://www.youtube.com/watch?v=jXp3k0FhMIw http://en.wikipedia.org/wiki/Frequency_modulation In telecommunications and signal processing, frequency modulation (FM) conveys information over a carrier wave by varying its instantaneous frequency. This contrasts with amplitude modulation, in which the amplitude of the carrier is varied while its frequency remains constant. In analog applications, the difference between the instantaneous and the base frequency of the carrier is directly proportional to the instantaneous value of the input-signal amplitude. Digital data can be sent by shifting the carrier's frequency among a range of settings, a technique known as frequency-shift keying. FSK (digital FM) is widely used in data and fax modems. Morse code transmission has been sent this way, and FASK was used in early telephone-line modems. Radioteletype also uses FSK. FM modulation is also used in telemetry, radar, seismic prospecting and newborn EEG seizure monitoring. Frequency modulation is known as phase modulation when the carrier phase modulation is the time integral of the FM signal. FM is widely used for broadcasting music and speech, two-way radio systems, magnetic tape-recording systems and some video-transmission systems. In radio systems, frequency modulation with sufficient bandwidth provides an advantage in cancelling naturally-occurring noise. Radio Edwin Howard Armstrong (1890--1954) was an American electrical engineer who invented wideband frequency modulation (FM) radio. He patented the regenerative circuit in 1914, the superheterodyne receiver in 1918 and the super-regenerative circuit in 1922. Armstrong presented his paper, "A Method of Reducing Disturbances in Radio Signaling by a System of Frequency Modulation", (which first described FM radio) before the New York section of the Institute of Radio Engineers on November 6, 1935. The paper was published in 1936. As the name implies, wideband FM (WFM) requires a wider signal bandwidth than amplitude modulation by an equivalent modulating signal; this also makes the signal more robust against noise and interference. Frequency modulation is also more robust against signal-amplitude-fading phenomena. As a result, FM was chosen as the modulation standard for high frequency, high fidelity radio transmission, hence the term "FM radio" (although for many years the BBC called it "VHF radio" because commercial FM broadcasting uses part of the VHF band—the FM broadcast band). FM receivers employ a special detector for FM signals and exhibit a phenomenon known as the capture effect, in which the tuner "captures" the stronger of two stations on the same frequency while rejecting the other (compare this with a similar situation on an AM receiver, where both stations can be heard simultaneously). However, frequency drift or a lack of selectivity may cause one station to be overtaken by another on an adjacent channel. Frequency drift was a problem in early (or inexpensive) receivers; inadequate selectivity may affect any tuner. An FM signal can also be used to carry a stereo signal; this is done with multiplexing and demultiplexing before and after the FM process. The FM modulation and demodulation process is identical in stereo and monaural processes. A high-efficiency radio-frequency switching amplifier can be used to transmit FM signals (and other constant-amplitude signals). For a given signal strength (measured at the receiver antenna), switching amplifiers use less battery power and typically cost less than a linear amplifier. This gives FM another advantage over other modulation methods requiring linear amplifiers, such as AM and QAM. FM is commonly used at VHF radio frequencies for high-fidelity broadcasts of music and speech. Normal (analog) TV sound is also broadcast using FM. Narrowband FM is used for voice communications in commercial and amateur radio settings. In broadcast services, where audio fidelity is important, wideband FM is generally used...
Views: 81482 Jeff Quitney
Rise Against - Broadcast[Signal]Frequency (Wolves)
 
02:31
Rise Against - Broadcast[Signal]Frequency (Lyrics) Bonus Track “Broadcast[Signal]Frequency” from the new album “Wolves" Wolves [Bonus Tracks] [Only @ Best Buy] [CD] http://www.bestbuy.com/site/wolves-bonus-tracks-only--best-buy-cd/5864800.p?skuId=5864800 Buy + stream "Wolves" @ https://RiseAgainst.lnk.to/Wolves Visit Rise Against on socials: http://www.riseagainst.com https://www.facebook.com/riseagainst https://twitter.com/riseagainst https://www.instagram.com/riseagainst GIFS: https://giphy.com/riseagain All rights reserved. C) 2017 Virgin Records No Copyright Infringement Intended https://www.youtube.com/channel/UChMK
Views: 79480 Eduardo lml
How to Change R/C Car Frequency
 
06:50
A simple way to change the frequency of of your R/C car
Views: 110103 Heilman Hackatronics
radio frequency signal jammers,Cell phone blocker
 
02:34
101I is desktop cellular phone jammer. It can be used for all the worldwide network frequency system. Even it can be adapted to the vehicle directly by the car's current design,please sned email [email protected]
Views: 2829 RF-Jamming