# (c) Royal Meteorological Institute Belgium # Maximum Usable Frequency (MUF) at distance (D) # Ionosonde: DPS-4D, URSI code: DB049, coordinates: 50.1°N, 4.9°E # Most recent values as of: 2026-05-21 08:50:02 UTC # D(km) MUF(MHz) 0000 6.2 0100 6.8 0200 6.9 0400 7.2 0600 7.6 0800 8.2 1000 9.2 1500 11.9 3000 18.7 # Note: automatically scaled values, provided "as is". # See http://ionosphere.meteo.be for more information.