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  2. Signal strength and readability report - Wikipedia

    en.wikipedia.org/wiki/Signal_strength_and...

    A signal strength and readability report is a standardized format for reporting the strength of the radio signal and the readability (quality) of the radiotelephone (voice) or radiotelegraph (Morse code) signal transmitted by another station as received at the reporting station's location and by their radio station equipment. These report ...

  3. Quindar tones - Wikipedia

    en.wikipedia.org/wiki/Quindar_tones

    Therefore, those transmissions would consist of a "beep" (PTT press) followed by Houston talking, then another "beep" (PTT release) and finally the voice of the astronauts. Another misconception about Quindar tones is that they were designed to signal the end of a transmission, similar to a courtesy tone used on many half-duplex radio repeaters.

  4. Tire Assault Vehicle - Wikipedia

    en.wikipedia.org/wiki/Tire_Assault_Vehicle

    The Tire Assault Vehicle (TAV) was a small remote-controlled vehicle created from a scale model kit of the German World War II-era Tiger II heavy tank, used by NASA to test the tires for the Space Shuttle. [1] [2] The TAV was used to drill into the tires to damage them, something which was too risky to perform manually because of the intensity ...

  5. R-S-T system - Wikipedia

    en.wikipedia.org/wiki/R-S-T_system

    The S stands for "Strength". Strength is an assessment of how powerful the received signal is at the receiving location. Although an accurate signal strength meter can determine a quantitative value for signal strength, in practice this portion of the RST code is a qualitative assessment, often made based on the S meter of the radio receiver at the location of signal reception.

  6. List of interstellar radio messages - Wikipedia

    en.wikipedia.org/wiki/List_of_interstellar_radio...

    Poetica Vaginal (1986), several minutes of transmission towards Epsilon Eridani and Tau Ceti [1] Cosmic Call 1 (1999), four transmissions to nearby Sun-like stars; Teen Age Message (2001), six transmissions; Cosmic Call 2 (2003), five transmissions; A Message From Earth (2008), one transmission to the Gliese 581 planetary system; Across the ...

  7. Amateur Radio on the International Space Station - Wikipedia

    en.wikipedia.org/wiki/Amateur_Radio_on_the...

    It is also possible to send digital data to the ISS via laptop computers, similar to an email communication, using radio frequencies instead of telephone or cable connections [citation needed]. On November 12, 2000 the first amateur radio contacts were made from the International Space Station during Expedition 1.

  8. List of scale model sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_scale_model_sizes

    Used by Heller for model ships, and proposed by the Japanese to supersede 1:144 scale trains. Models which are commonly made in scale at 1:150 are commercial airliners - such as the Airbus A320, Boeing 777 all the way to the jumbo jets - the Airbus A380 & Boeing 747. [8] 1:148: 2.059 mm: Model railways (British N) British N model railroad scale ...

  9. 1:200 scale - Wikipedia

    en.wikipedia.org/wiki/1:200_scale

    An airline model aircraft collection in the 1:200 scale. Represented here are models of Delta, China Southern, Air Canada, South African Airways, British Airways and Virgin Atlantic airlines. The 1:200 scale is a modeling scale used in the model building hobby. A vehicle or building made in the 1:200 scale, fits 200 times inside its real-life ...

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