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  2. 20-meter band - Wikipedia

    en.wikipedia.org/wiki/20-meter_band

    The 20-meter or 14-MHz amateur radio band is a portion of the shortwave radio spectrum, comprising frequencies stretching from 14.000 MHz to 14.350 MHz. [1] The 20-meter band is widely considered among the best for long-distance communication ( DXing ), and is one of the most popular—and crowded—during contests . [ 2 ]

  3. Amateur radio frequency allocations - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_frequency...

    Five 2.8 kHz-wide channels are available in the U.S., centered on 5.332, 5.348, 5.368, 5.373, and 5.405 MHz. Since most radios in SSB mode display the (suppressed) carrier frequency, in USB mode the dial frequencies would all need to be set 1.5 kHz lower. Voice operation is generally in upper sideband mode, which is mandatory in the U.S. . The ...

  4. Amateur radio propagation beacon - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_propagation...

    Several countries in ITU Region 1 have access to frequencies in the 70 MHz region, called the 4-meter band. The band shares many propagation characteristics with 6 meters. The preferred location for beacons is 70.000–70.090 MHz; [5] however, in countries where this segment is not allocated to Amateur Radio, beacons may operate elsewhere in ...

  5. 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 ...

  6. Slow-scan television - Wikipedia

    en.wikipedia.org/wiki/Slow-scan_television

    40 meters: 7.18 MHz (New suggested frequency to include General Class licensees) LSB 40 meters: 7.214 MHz Australian digital SSTV frequency (Easypal and DIGTRX) LSB 20 meters: 14.23 MHz Frequency 1 analog: USB 20 meters: 14.233 MHz Frequency 2 analog to alleviate crowding on 14.23: USB 15 meters: 21.34 MHz: USB 11 meters: 27.7 MHz (pirate radio ...

  7. Skywave - Wikipedia

    en.wikipedia.org/wiki/Skywave

    On October 10, the Third National Radio Conference made three shortwave bands available to U.S. amateurs [8] at 80 meters (3.75 MHz), 40 meters (7 MHz) and 20 meters (14 MHz). These were allocated worldwide, while the 10-meter band (28 MHz) was created by the Washington International Radiotelegraph Conference [ 9 ] on 25 November 1927.

  8. Weed isn't legal in Indiana, but Hoosiers stoners can still ...

    www.aol.com/weed-isnt-legal-indiana-hoosiers...

    Hoosier stoners may be looking for ways to celebrate 4/20. Weed is illegal in our state, but there are other ways to participate. ... Delta is legal to purchase in Indiana, but the products are ...

  9. 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).