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  2. R-390A - Wikipedia

    en.wikipedia.org/wiki/R-390A

    The R-390A is a general coverage radio receiver capable of receiving amplitude modulated, code, and frequency shift keying signals. Its tuning range is from 500 kHz to 32 MHz, in thirty-two 1 MHz bands.

  3. Amateur radio net - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_net

    An amateur radio net, or simply ham net, is an "on-the-air" gathering of amateur radio operators.Most nets convene on a regular schedule and specific frequency, and are organized for a particular purpose, such as relaying messages, discussing a common topic of interest, in severe weather (for example, during a Skywarn activation), emergencies, or simply as a regular gathering of friends for ...

  4. High Frequency Global Communications System - Wikipedia

    en.wikipedia.org/wiki/High_Frequency_Global...

    The primary HFGCS voice frequencies are 4724.0 kHz, 8992.0 kHz, 11175.0 kHz, and 15016.0 kHz. In addition to the HFGCS, U.S. aircraft frequently use Military Auxiliary Radio System (MARS) HF stations (13927.0 kHz) and Canadian Forces HF stations (11232.0 kHz) to relay messages. Various other discrete frequencies are available, and used, as part ...

  5. Automatic link establishment - Wikipedia

    en.wikipedia.org/wiki/Automatic_Link_Establishment

    Automatic Link Establishment, commonly known as ALE, is the worldwide de facto standard for digitally initiating and sustaining HF radio communications. [1] ALE is a feature in an HF communications radio transceiver system that enables the radio station to make contact, or initiate a circuit, between itself and another HF radio station or network of stations.

  6. AN/ARC-190 - Wikipedia

    en.wikipedia.org/wiki/AN/ARC-190

    The ARC-190 is a military HF radio that operates between 2-30 MHz and transmits at 300+ watts.It features a dual heterodyne receiver/transmitter that uses IF frequencies of 97.8 and 1.8 MHz, an antenna coupler that is pressurized to 7±1 PSI with dry nitrogen (air) which (1) prevents high voltage arcing, (2) prevents corrosion, (3) provides a uniform cooling medium, and one of various controls ...

  7. Martha Layne Collins High School - Wikipedia

    en.wikipedia.org/wiki/Martha_Layne_Collins_High...

    Martha Layne Collins High School is a high school located in Shelbyville, Kentucky, United States and is a part of the Shelby County Public School District. Commonly referred to as Collins High School , the school is named after Martha Layne Collins , the first female governor of Kentucky and a Shelby County native.

  8. Daimion Collins enters the basketball transfer portal after a ...

    www.aol.com/daimion-collins-enters-basketball...

    A former McDonald’s All-American in the 2021 recruiting class, Daimion Collins will enter the transfer portal after two seasons at Kentucky.

  9. AN/ART-13 - Wikipedia

    en.wikipedia.org/wiki/AN/ART-13

    The AN/ART-13 operated in CW (code), MCW and AM (voice) modes and covered LF, MF and HF frequencies up to 18.1 MHz.It had ten autotuned VFO tuned channels that could be preset. . Post-war modifications by COMCO and other companies added crystal frequency control capability and were approved for use on civil airline