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2. 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. [1] [2] [3]

3. Society of Broadcast Engineers - Wikipedia

   en.wikipedia.org/wiki/Society_of_Broadcast_Engineers

   The Society of Broadcast Engineers (SBE) is a professional organization for engineers in broadcast radio and television. The SBE also offers certification in various radio frequency and video and audio technology areas for its members.

4. Broadcast engineering - Wikipedia

   en.wikipedia.org/wiki/Broadcast_engineering

   Broadcast engineering or radio engineering is the field of electrical engineering, and now to some extent computer engineering and information technology, which deals with radio and television broadcasting. Audio engineering and RF engineering are also essential parts of broadcast engineering, being their own subsets of electrical engineering.

5. AM broadcasting - Wikipedia

   en.wikipedia.org/wiki/AM_broadcasting

   AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions, and is still used worldwide, primarily for medium wave (also known as "AM band") transmissions, but also on the longwave and shortwave radio bands.

6. Traveling-wave tube - Wikipedia

   en.wikipedia.org/wiki/Traveling-wave_tube

   Helix TWT - in which the radio waves interact with the electron beam while traveling down a wire helix which surrounds the beam. These have wide bandwidth, but output power is limited to a few hundred watts. [3] Coupled cavity TWT - in which the radio wave interacts with the beam in a series of cavity resonators through which the beam passes ...

7. Signal Corps Laboratories - Wikipedia

   en.wikipedia.org/wiki/Signal_Corps_Laboratories

   By 1935, Blair determined that the use of high-frequency radio pulses provided the most promising approach to radar detection. Once sent out, the radio pulse waves reflected off of metallic objects, and then a receiver could catch the returning pulses and determine the position, speed, and direction of the metallic objects. [8]

8. RF engineering - Wikipedia

   en.wikipedia.org/?title=RF_engineering&redirect=no

   Pages for logged out editors learn more. Contributions; Talk; RF engineering

9. Radio frequency - Wikipedia

   en.wikipedia.org/wiki/Radio_frequency

   Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency [1] range from around 20 kHz to around 300 GHz.