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2. Noise-canceling microphone - Wikipedia

   en.wikipedia.org/wiki/Noise-canceling_microphone

   The internal electronic circuitry of an active noise-canceling mic attempts to subtract noise signal from the primary microphone. The circuit may employ passive or active noise canceling techniques to filter out the noise, producing an output signal that has a lower noise floor and a higher signal-to-noise ratio .

3. Citizens band radio - Wikipedia

   en.wikipedia.org/wiki/Citizens_band_radio

   Shown with Astatic brand D-104 desk mic. Citizens band radio ( CB radio) is a land mobile radio system, a system allowing short-distance one-to-many bidirectional voice communication among individuals, using two-way radios operating near 27 MHz (or the 11-m wavelength) in the high frequency or shortwave band.

4. Astatic Corporation - Wikipedia

   en.wikipedia.org/wiki/Astatic_Corporation

   Pro audio, microphones, sound equipment. Owner. DAS Companies, Omnitronics. Website. www.cadaudio.com. The Astatic Corporation is a commercial audio products manufacturer founded in Youngstown, Ohio in 1933. Astatic formed CAD Professional Microphones in 1988 as a division of Astatic. The company reorganized as Omnitronics LLC in 2000, and ...

5. List of CB slang - Wikipedia

   en.wikipedia.org/wiki/List_of_CB_slang

   CB slang is the distinctive anti-language, argot, or cant which developed among users of Citizens Band radio (CB), especially truck drivers in the United States during the 1970s and early 1980s. [1] The slang itself is not only cyclical, but also geographical. Through time, certain terms are added or dropped as attitudes toward it change.

6. CB radio in the United States - Wikipedia

   en.wikipedia.org/wiki/CB_radio_in_the_United_States

   In the United States, the Citizens Band Radio Service (CBRS), commonly called citizens band radio (CB radio), is one of several personal radio services defined under Title 47 of the Code of Federal Regulations, Part 95. [ 1] It is intended to be a two-way voice communication service for use in personal and business activities of the general ...

7. Microphone connector - Wikipedia

   en.wikipedia.org/wiki/Microphone_connector

   SwitchCraft 2501F/2501M. This is the part number for a Swichcraft connector used with high impedance microphones up through about 1980. It was intended for coax style cable up to 0.281 inches (7.1 mm) outside diameter. Attachment is made with a 5/8-27 threaded ring that can be unthreaded over the body of the connector body allowing the female ...