Radio amateurs in Portugal have intensified the search for GPS buoys that are illegally operating and intruding on 10 meters. A recent International Amateur Radio Union Region 1 Monitoring System (IARUMS-R1) report indicated that one such buoy was operating 24/7 on 28.100 MHz, using F1B mode (RTTY), 51 baud, 270 Hz shift. IARUMS-R1 also has posted a lengthy and growing list of intruding driftne…

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