Today, worldwide HF e-mail networks are the hottest talk in town for aid agencies, business companies, coastal stations, non-governmental organizations, the International Red Cross, the United Nations, and terrorist organizations. Only this guidebook gives you hundreds of brandnew frequencies and screenshots! New chapters cover disaster communications and terrorist networks as well. Here are the really fascinating radio services on shortwave: aero, diplo, maritime, meteo, military, police, press, and telecom. Our bestseller - for 34 years!