AM

From HFUnderground

Revision as of 02:21, 6 June 2009 by Cosmikdebris (Talk | contribs)
Jump to: navigation, search

Amplitude modulation (AM) is one of the modes frequently used by pirates on HF and mediumwave. Often, pirates will use vintage amateur radio transmitters, such as those by E.F. Johnson (Valiant, Viking, Ranger), Globe and Heathkit. These transmitters are old, heavy and consume generous amounts of electricity, but are desirable because they can produce a relatively high fidelity, plate-modulated AM signal. At one time, these transmitters hardly had any value, but prices of vintage equipment have skyrocketed in the last decade. This may be one reason why AM is not quite as popular for pirate transmissions as it once was. Instead, many pirates prefer to use SSB.



This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Some links may be affiliate links. We may get paid if you buy something or take an action after clicking one of these.