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Graphical Frequency Allocations
Pin on Amateur Radio - AF5OI
Stepping up to the General Class license really opens up the HF amateur bands to your utilization. Phone privileges are expanded significantly on 10, 12, 15, 17, 20, 40, 60, 80, and meter bands. Digital or data mode transmissions are also expanded across the HF range. The upshot of this expansion of privileges for the aspiring General Class upgrading ham is a larger set of band limits and sub-band limits to know and comply with, and of course to be tested on! With the exceptions of the 30 meter band that allows only digital or data transmissions across its entire width, and the 60 meter band that provides just 5 channels, each HF band has a sub-band for phone mode transmissions and a sub-band for digital and data transmissions. Several questions from sub-element G1A require you to identify the correct frequency within the General Class portion of a given band, as in the question above, G1A Memorizing all those sub-band limits can be a meticulous and less-than-thrilling exercise.
Amateur radio frequency allocations
Forgot Password? A band plan refers to a voluntary division of a band to avoid interference between incompatible modes. You need only register once for each band.
These ham radio bands or frequency allocations are open to radio hams around the world to use although the actual ham radio allocations do vary slightly from country to country and region to region. However a broad view of the ham radio band allocations can be given, and this is accompanied below with an overview of the properties of the different allocations for radio amateurs. In the HF portion of the radio spectrum, there is a total of nine different bands that are allocated to ham radio around the globe. These bands are generally the same world-wide although there are some variations dependent upon the country or region dependent upon the actual amateur radio band in question.