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  2. Amateur radio licensing in the United States - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_licensing_in...

    FCC amateur radio station license of Al Gross. In the United States, amateur radio licensing is governed by the Federal Communications Commission (FCC). Licenses to operate amateur stations for personal use are granted to individuals of any age once they demonstrate an understanding of both pertinent FCC regulations and knowledge of radio station operation and safety considerations.

  3. General radiotelephone operator license - Wikipedia

    en.wikipedia.org/wiki/General_radiotelephone...

    It is obtained by taking a test demonstrating an adequate knowledge of the legal, technical, and safety aspects of radio transmitter operation. The GROL is the most common FCC commercial license, accounting for about 80% of those issued by the commission, because of the wide range of positions that require it.

  4. Amateur radio - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio

    An amateur radio license is valid only in the country where it is issued or in another country that has a reciprocal licensing agreement with the issuing country. [42] [43] In some countries, an amateur radio license is necessary in order to purchase or possess amateur radio equipment. [44]

  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. Signal strength and readability report - Wikipedia

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

    The Amateur radio R-S-T system signal report format currently in use was first developed in 1934. [citation needed] As early as 1943, the U.S and UK military published the first guidance that included the modern "Weak but readable", "Strong but distorted", and "Loud and clear" phrases. [citation needed]

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