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CQ Amateur Radio United States: English Monthly 1945–2023 National Communications Magazine United States: English Bimonthly 1988-present CQ VHF Magazine United States: English Quarterly 1996–2013 Electronics Illustrated United States: English Monthly 1959–1961 ham radio United States: English Monthly 1968–1990 K9YA Telegraph United States
ARRL – American Radio Relay league. DX News Ham Radio; World Radio Map; The DXZone.com A web site dedicated to the DXing; DX Forum Discussion of long-range radio reception, equipment; DXing.Today Archived 2018-01-06 at the Wayback Machine Free weekly DX News bulletin by VK2DX; Charlie Tango DX Group UK CTDX is the largest DXing group in the UK
Generally new modes can be tested in the amateur radio service, although national regulations may require disclosure of a new mode to permit radio licensing authorities to monitor the transmissions. Encryption , for example, is not generally permitted in the Amateur Radio service except for the special purpose of satellite vehicle control uplinks.
EF Johnson Technologies, Inc. is a two-way radio manufacturer founded by its namesake, Edgar Frederick Johnson, in Waseca, Minnesota, United States in 1923. [1] Today it is a wholly owned subsidiary of JVCKenwood of Yokohama, Japan. EF Johnson Technologies offers a wide range of equipment for use by law enforcement, firefighters, EMS, and military.
MacLoggerDX is a full-featured amateur radio contact logger for macOS with Transceiver control, Rotor control, Callbook lookup, QSL handling (Hardcopy / LoTW / eQSL / Club Log), DX Cluster and spotting, and basic contesting support.
Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communications. [1]
Call sign Frequency City of License [1] [2] Licensee [2] [3] Format [4]; KADU: 90.1 FM: Hibbing: Heartland Christian Broadcasters: Contemporary Inspirational KAKK: 1570 AM: Walker
In 1935, Courmettes went on to patent the Tilted Bifocal Lens, [12] in 1936, a method of grinding two prescriptions simultaneously on that Tilted Bifocal Lens, [13] and in 1951, the Cataract Bifocal Lens. [14] Today most bifocals are created by moulding a reading segment into a primary lens and are available with the reading segments in a ...