> Apparently, due to the low power of the GPS signal, it would be > relatively easy to jam. Whereas the LORAN signal has very high power, > and would therefore be more difficult to jam. Nothing is 'very difficult to jam' when the jammer is near the jamee, because of the inverse square law. Peter -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist