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American Novice and Technician class licensees were granted CW and SSB segments on the 10 meter band as of 21 March 1987. [ 4 ] With the elimination of Morse code testing requirements for U.S. amateurs in February 2007, Technician-class licensees who have not passed a code test may operate with up to 200 Watts PEP using CW and SSB modes in a ...
Most high frequency radio propagation beacons are found in the 10-meter band (28 MHz), where they are good indicators of Sporadic E ionospheric propagation. According to IARU bandplans, the following 28 MHz frequencies are allocated to radio propagation beacons:
The list of frequency ranges is called a band allocation, which may be set by international agreements, and national regulations. The modes and types of allocations within each frequency band is called a bandplan; it may be determined by regulation, but most typically is set by agreements between amateur radio operators.
The digital segment is 10.13-10.15 MHz. The current band plan has telephony from 10.12–10.135 MHz, with CW only below 10.12. These are WIA [ 13 ] recommendations only as ACMA does not restrict Australian amateurs' modes within HF allocations beyond requiring less than 8 kHz occupied bandwidth per channel below 28 MHz.
As a matter of convention, the ITU divides the radio spectrum into 12 bands, each beginning at a wavelength which is a power of ten (10 n) metres, with corresponding frequency of 3×10 8−n hertz, and each covering a decade of frequency or wavelength. Each of these bands has a traditional name.
Many civilian agencies use, or used to use, the frequencies 27.575 and 27.585 for low-power use. The US Coast Guard Auxiliary uses 27.980 MHz, it is similar to the Civil Air Patrol Frequency 26.620 MHz. [16] [17] [18] Amateur radio has an allocation starting at 28.000 MHz in the 10-meter band. [19]
Peak envelope power (PEP) is the average power over a single radio frequency cycle at the crest of the modulation. This is a Federal Communications Commission definition. PEP is normally considered the occasional or continuously repeating crest of the modulation envelope under normal operating conditions.
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.