throughout the radio spectrum. These allocations are among the smallest in the HF band, with respect to national HF allocations. See also World Administrative Radio Conference References External links American Radio Relay League – the United States lobbying body for amateur radio and the body responsible for the ARRL Handbook Radio Amateurs of Canada – Canada's National Amateur Radio Society EiBi & DX – Complete list of International Broadcasting Stations worldwide, frequently updated UnwantedEmissions.com – Radio spectrum allocations reference short-wave.info – Easy to interrogate frequency schedules of short wave broadcasters US Amateur Radio Bands chart IARU Region 1 Monitoring System – English and German languages monthly reports on HF amateur bands intruders Bandplans es:Bandas de frecuencia fr:Haute fréquence