# (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: 2026-09-12 23:20:02 UTC # D(km) MUF(MHz) 0000 4.1 0100 4.7 0200 4.8 0400 4.9 0600 5.2 0800 5.6 1000 6.2 1500 8.0 3000 12.5 # Note: automatically scaled values, provided "as is". # See http://ionosphere.meteo.be for more information.