# (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: 2026-02-18 23:30:01 UTC # D(km) MUF(MHz) 0000 3.4 0100 4.0 0200 4.0 0400 4.2 0600 4.4 0800 4.7 1000 5.2 1500 6.5 3000 9.8 # Note: automatically scaled values, provided "as is". # See http://ionosphere.meteo.be for more information.