The MUF map shows the Maximum Usable Frequency using colors and contour lines. For example, if a given area on the map is greenish and lies between the contours labeled "15" …

Aug 17, 2022 · Repeat visits counted as new after 24 hours. This MUF map is a useful real-time indicator for HF propagation conditions.

An interactive map that shows real time, worldwide HF activity and propagation specific to the user's location on all amateur radio HF bands.

In radio transmission, maximum usable frequency (MUF) is the highest radio frequency that can be used for transmission between two points on Earth by reflection from the ionosphere …

Find the foF2 and hmF2 graph closest to your location, and enter in the current values, (the end of the blue trace) along with the transmitter frequency. The estimated skip zone will be …

In most prediction software and in amateur radio and shortwave listening references the MUF refers to the first definition. On each day of the month at a given hour, there is a maximum …

Maximum Usable Frequency (MUF) is the maximum frequency that can be used for reliable communication between two points via ionospheric reflection, for a specific distance.

The MUF for any 3,000 kilometer path can be determined by finding the midpoint (or half-way point) of the path and examining the MUF at that midpoint on the map by finding the labelled …

Feb 13, 2024 · MUF = critical frequency/cosθ. Critical frequency is the maximum frequency at which total internal reflection occurs from the ionosphere. Higher frequencies travel further …

Jan 1, 2024 · A few logs from this afternoon and good MUF - after some pretty quiet days of late. 31 / 33 / 35 had the usual US traffic.