# (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: 2026-07-02 09:25:00 UTC # D(km) MUF(MHz) 0000 6.5 0100 7.1 0200 7.2 0400 7.5 0600 8.0 0800 8.8 1000 9.8 1500 12.9 3000 20.9 # Note: automatically scaled values, provided "as is". # See http://ionosphere.meteo.be for more information.