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  2. Coaxial antenna - Wikipedia

    en.wikipedia.org/wiki/Coaxial_antenna

    In the most basic form, a quarter-wavelength section of coaxial cable is prepared such that the inner and outer conductors are separate but still attached to the remaining cable. The outer (shield) conductor is connected to a quarter-wavelength conducting sleeve into which the cable is inserted, and the inner conductor protrudes vertically ...

  3. List of amateur radio organizations - Wikipedia

    en.wikipedia.org/wiki/List_of_amateur_radio...

    Philippine Amateur Radio Association: Poland Polski Związek Krótkofalowców: Portugal Rede dos Emissores Portugueses: National Amateur Radio Association representing amateur radio in Portugal. Member society of IARU Qatar Qatar Amateur Radio Society: Romania Federatia Romana de Radioamatorism: Romanian Amateur Radio Federation Russia

  4. Amateur radio repeater - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_repeater

    Amateur radio repeaters may even use commercially packaged repeater systems that have been adjusted to operate within amateur radio frequency bands, but more often amateur repeaters are assembled from receivers, transmitters, controllers, power supplies, antennas, and other components, from various sources.

  5. G5RV antenna - Wikipedia

    en.wikipedia.org/wiki/G5RV_antenna

    With no matching unit, Varney specified 75 Ω cable be used at the junction of the ladder line and coax (not 50 Ω); the higher 75 Ω impedance makes a closer match the end of the ladder line. An earth-grounded 4:1 voltage balun may be used to connect the coax to the ladder line, and 1:1 current balun should be used between the coax and the ...

  6. 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]

  7. 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.

  8. Talk:1.25-meter band - Wikipedia

    en.wikipedia.org/wiki/Talk:1.25-meter_band

    This article is within the scope of WikiProject Amateur radio, which collaborates on articles related to amateur radio technology, organizations, and activities. If you would like to participate, you can edit the article attached to this page, or visit the project page , where you can join the project and/or contribute to the discussion .

  9. Talk:Amateur radio - Wikipedia

    en.wikipedia.org/wiki/Talk:Amateur_radio

    This article is within the scope of WikiProject Amateur radio, which collaborates on articles related to amateur radio technology, organizations, and activities. If you would like to participate, you can edit the article attached to this page, or visit the project page , where you can join the project and/or contribute to the discussion .

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