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President HR2510A, a mobile 10-meter radio, with a Uniden microphone. Being a very wide band in HF terms, many different transmission modes can be found on 10 meters. Morse code and other narrowband modes are found toward the bottom portion of the band, SSB from 28.300 MHz up, and wideband modes ( AM and FM ) are found near the upper part of ...
W1AW transmits bulletins of interest to the amateur radio community in a variety of formats, including single sideband and FM voice, CW , RTTY, MFSK16, and PSK31. [3] These bulletins include notification of significant amateur radio events, including frequencies used to assist in rescue efforts during state or national disasters. [2]
Information in this chart supersedes that in File:United States Frequency Allocations Chart 2011 - The Radio Spectrum.pdf. Archived at archive.org on 2016-10-30. Licensing
10 meter radios ("rigs") are often used with transverters - devices designed to shift a radio's operating frequency range - in order to provide inexpensive access to AM/SSB/CW modes on VHF and higher frequencies. 10 meter rigs can be bought for less than $100 during periods of low sunspot activity.
Note: Information in the chart has been superseded by the information in File:United States Frequency Allocations Chart 2016 - The Radio Spectrum.pdf, which was downloaded from the US Department of Commerce web site and archived at archive.org.
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).
Frequency: Jurisdiction of Radio Commission (2/1928), pages 14–17 Frequencies from 600 to 1000 kHz 12/1/1927 Frequency: Jurisdiction of Radio Commission (2/1928), pages 10–12 Frequencies from 600 to 1000 kHz that are cleared of interference Frequency: Jurisdiction of Radio Commission (2/1928), pages 13–14
An amateur radio propagation beacon is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use amateur radio frequencies. They can be found on LF, MF, HF, VHF, UHF, and microwave frequencies. Microwave beacons are also used as signal sources to test and calibrate antennas and ...