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  2. Shortwave bands - Wikipedia

    en.wikipedia.org/wiki/Shortwave_bands

    Shortwave bands are frequency allocations for use within the shortwave radio spectrum (the upper medium frequency [MF] band and all of the high frequency [HF] band). Radio waves in these frequency ranges can be used for very long distance (transcontinental) communication because they can reflect off layers of charged particles in the ionosphere and return to Earth beyond the horizon, a ...

  3. Log-periodic antenna - Wikipedia

    en.wikipedia.org/wiki/Log-periodic_antenna

    The log-periodic is commonly used as a transmitting antenna in high power shortwave broadcasting [15] stations because its broad bandwidth allows a single antenna to transmit on frequencies in multiple bands. The log-periodic zig-zag design with up to 16 sections has been used.

  4. Shortwave radio - Wikipedia

    en.wikipedia.org/wiki/Shortwave_radio

    Shortwave radio is radio transmission using radio frequencies in the shortwave bands (SW). There is no official definition of the band range, but it always includes all of the high frequency band (HF), which extends from 3 to 30 MHz (100 (exactly 99.930819333) to 10 (exactly 9.9930819333) meters); above the medium frequency band (MF), to the ...

  5. WARC bands - Wikipedia

    en.wikipedia.org/wiki/WARC_bands

    The World Administrative Radio Conference (WARC) bands are three portions of the shortwave radio spectrum used by licensed and/or certified amateur radio operators. They consist of 30 meters (10.1–10.15 MHz), 17 meters (18.068–18.168 MHz), and 12 meters (24.89–24.99 MHz). [1][2] They were named after the World Administrative Radio ...

  6. List of shortwave radio broadcasters - Wikipedia

    en.wikipedia.org/wiki/List_of_shortwave_radio...

    Yes. Based in Bowmanville, Ontario, originally VE9GW, founded by Gooderham and Worts as a relay of CKGW Toronto. Leased by the Canadian Radio Broadcasting Commission in 1933 along with CKGW, and renamed CRCX. Both stations purchased by the CBC in 1937. CKGW was renamed CBL and remains on the air and online as CBL-FM.

  7. List of European short wave transmitters - Wikipedia

    en.wikipedia.org/wiki/List_of_European_short...

    Frequency (MHz) Program Transmitter site Time, UTC Days Language Power (kW) Az Remarks 3.965 Radio France Internationale (DRM) Issoudun 01:00-00:57 1234567 French (Digital) 1 ND RFI 3.975 6160 Shortwave AM Radio Winsen 16:00-18:00 .234567 English 1 ND 3.985 SRF Schweizer Radio Kall-Krekel 16:00-17:00 1234567 German 1 ND 3.995 HCJB Deutsch