Emergency Communications. License Testing. Carrier Newsletter.
Marine, amateur and CB radio. The following are the recommended operating practices for users of high frequency HF radiocommunications. Choose the lowest licensed frequency that is likely to be effective.
Amateur radio frequency allocation is done by national telecommunication authorities. Globally, the International Telecommunication Union ITU oversees how much radio spectrum is set aside for amateur radio transmissions. Individual amateur stations are free to use any frequency within authorized frequency ranges; authorized bands may vary by the class of the station license.
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.
Amateur Radio is a fascinating hobby with many facets that can be practised by all amateurs alike. All the different things that make up this hobby culminate in contacting other persons with the same basic interest and, above all, the contacts made will contribute towards friendship and goodwill to each other. In these times of stress and strife, we all need to make friends more than ever before, and we can only promote goodwill by being on our best behaviour whenever we pick up the microphone, the Morse key or use a computer in Amateur Radio.
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.
This first part introduces the HF bands and explains how they work and what you can expect to hear at a given time. The WARC bands 30m, 17m, 12m are so-called due to their inclusion in the Amateur Radio bandplan during the W orld A dministrative R adio C onference in and are free of contest activity — Thereby offering a safe sanctuary from those who prefer a longer QSO or wish to find a more challenging DX contact! The image below explains how it is possible for Station A and Station C who are miles away to communicate, but also explains why Station B in the middle with only miles between each station may not hear either.
QRZ Forums. I'm finally fitting my HF antenna this weekend but to be honest i don't know what the common DX calling channels are. I know the 2m and 70cms calling frequencies but i'm alien to HF. Can anybody throw me a line please??
This protocol came about as a matter of convenience in early SSB transceiver design and has remained to this day. And yes - you can operate either sideband legally where phone is allowed. And yes you can operate CW on the phone bands -- but best stay with the protocols.