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2. Rubber ducky antenna - Wikipedia

   en.wikipedia.org/wiki/Rubber_ducky_antenna

   The rubber ducky antenna (or rubber duck aerial) is an electrically short monopole antenna, invented by Richard B. Johnson, that functions somewhat like a base-loaded whip antenna. It consists of a springy wire in the shape of a narrow helix , sealed in a rubber or plastic jacket to protect the antenna. [ 1 ]

3. Astro (Motorola) - Wikipedia

   en.wikipedia.org/wiki/Astro_(Motorola)

   Motorola first introduced digital two-way radio in the U.S. in 1991 under the name ASTRO Digital Solutions. [1] With the completion of the APCO Project 25 standard, Motorola introduced the ASTRO 25 solution and migrated its ASTRO Digital Solutions customers to ASTRO 25. Project 25 (also known as P25) is a suite of digital radio communications ...

4. List of Motorola products - Wikipedia

   en.wikipedia.org/wiki/List_of_Motorola_products

   Logo of Motorola Mobility. ... APX 7500 (The first "Dual-Band" Offering) APX 6500 (A single-band version of APX 7500) ... GPW 8000 Satellite Receiver (a receive-only ...

5. Stub (electronics) - Wikipedia

   en.wikipedia.org/wiki/Stub_(electronics)

   Stubs are commonly used in antenna impedance matching circuits, frequency selective filters, and resonant circuits for UHF electronic oscillators and RF amplifiers. Stubs can be constructed with any type of transmission line: parallel conductor line (where they are called Lecher lines), coaxial cable, stripline, waveguide, and dielectric waveguide.

6. Whip antenna - Wikipedia

   en.wikipedia.org/wiki/Whip_antenna

   A whip antenna is an antenna consisting of a straight flexible wire or rod. The bottom end of the whip is connected to the radio receiver or transmitter. A whip antenna is a form of monopole antenna. The antenna is designed to be flexible so that it does not break easily, and the name is derived from the whip-like motion that it exhibits when ...

7. Monopole antenna - Wikipedia

   en.wikipedia.org/wiki/Monopole_antenna

   The horizontal gain continues to increase up to a maximum of about 6.6 dBi at a length of five-eighths wavelength ⁠ 5 / 8 ⁠ λ so this is a popular length for ground wave antennas and terrestrial communication antennas, for frequencies where a larger antenna size is feasible. The input impedance drops to about 40 Ohms at that length.

8. MDC-1200 - Wikipedia

   en.wikipedia.org/wiki/MDC-1200

   MDC (Motorola Data Communications), also known as Stat-Alert, MDC-1200 and MDC-600, is a Motorola two-way radio low-speed data system using audio frequency shift keying, (AFSK). MDC-600 uses a 600 baud data rate. MDC-1200 uses a 1,200 baud data rate. Systems employ either one of the two baud rates.

9. Motorola connector - Wikipedia

   en.wikipedia.org/wiki/Motorola_connector

   A Motorola connector (also called a Motorola antenna plug [citation needed] or a male DIN 41585 [1]) is a common coaxial cable RF connector used primarily in the automotive industry for connecting the coaxial feedline from the antenna to the radio receiver. It is also sometimes used for connecting scanner antennas to scanners.