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2. United States National Radio Quiet Zone - Wikipedia

   en.wikipedia.org/wiki/United_States_National...

   The NRQZ includes portions of West Virginia and Virginia and a small part of Maryland. The National Radio Quiet Zone (NRQZ) is a large area of land in the United States designated as a radio quiet zone, in which radio transmissions are restricted by law to facilitate scientific research and the gathering of military intelligence.

3. Thomas Jefferson National Accelerator Facility - Wikipedia

   en.wikipedia.org/wiki/Thomas_Jefferson_National...

   Thomas Jefferson National Accelerator Facility (TJNAF), commonly called Jefferson Lab or JLab, is a US Department of Energy National Laboratory located in Newport News, Virginia. [ 1 ] Since June 1, 2006, it has been operated by Jefferson Science Associates, LLC, a limited liability company created by Southeastern Universities Research ...

4. High-frequency Active Auroral Research Program - Wikipedia

   en.wikipedia.org/wiki/High-frequency_Active...

   The intensity of the HF signal in the ionosphere is less than 3 μW/cm 2, tens of thousands of times less than the Sun's natural electromagnetic radiation reaching the Earth and hundreds of times less than even the normal random variations in intensity of the Sun's natural ultraviolet (UV) energy which creates the ionosphere. The small effects ...

5. Electromagnetic radiation - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_radiation

   In physics, electromagnetic radiation (EMR) is the set of waves of an electromagnetic (EM) field, which propagate through space and carry momentum and electromagnetic radiant energy. [ 1 ] [ 2 ] Classically , electromagnetic radiation consists of electromagnetic waves , which are synchronized oscillations of electric and magnetic fields .

6. Radio-frequency engineering - Wikipedia

   en.wikipedia.org/wiki/Radio-frequency_engineering

   Radio-frequency (RF) engineering is a subset of electrical engineering involving the application of transmission line, waveguide, antenna, radar, and electromagnetic field principles to the design and application of devices that produce or use signals within the radio band, the frequency range of about 20 kHz up to 300 GHz.

7. Harry Diamond Laboratories - Wikipedia

   en.wikipedia.org/wiki/Harry_Diamond_Laboratories

   The Harry Diamond Laboratories (HDL) was a research facility under the National Bureau of Standards (NBS) and later the U.S. Army.It conducted research and development in electronic components and devices and was at one point the largest electronics research and development laboratory in the U.S. Army. HDL also acted as the Army's lead laboratory in nuclear survivability studies and operated ...