Issued: 2025 05 14 1127 UTC #------------------------------------------------# # PROPAGATION WARNING # # BIPT Ophain # # 50° 39' 30" N - 004° 21' 00" E # # # # POSSIBLE HARMFUL INTERFERENCE DUE TO # # SPECIAL EVENT # #------------------------------------------------# BIPT Propagation Bulletin 985 OBSERVATION PERIOD : 2025 05 14 1127 UTC INTERFERENCE RISK : Radio Blackout A high-frequency (HF) radio propagation fadeout is currently in progress. The U.S. National Weather Service reports a moderate-level (R2) radio blackout. """ HF Radio: Limited blackout of HF radio communication on the sunlit side, with loss of radio contact lasting tens of minutes. Navigation: Degradation of low-frequency navigation signals for tens of minutes. """ Source: Space Weather Prediction Center (SWPC) REMARKS : OPERATOR : S. Marotte SEE OUR PROGPAGATION GRAPHS : https://propa.bipt.be Contact us for specific information. #------------------------------------------------------------------------# # Belgian Institute for Postal Services and Telecommunications # # # # Boulevard du Roi Albert II 32 box 10 # # 1000 Brussels # # Tel.: 32 (0) 2 226 88 88 # # info@bipt.be # # # # Please do not reply directly to this message, but send comments # # and suggestions to 'propa@bipt.be'. # # To subscribe or unsubscribe, send a mail to 'propa@bipt.be' # # For more information, see https://propa.bipt.be # #------------------------------------------------------------------------#