How to Calculate Maximum Usable Frequency in F-region?
Maximum Usable Frequency in F-region calculator uses Maximum Usable Frequency = Critical Frequency/cos(Angle of Incidence) to calculate the Maximum Usable Frequency, Maximum Usable Frequency in F-region formula region refers to the highest frequency that can be effectively used for long-distance radio communication by reflecting off the F-region of the Earth's ionosphere. The F-region is the highest ionospheric layer, also known as the F2-layer, located approximately 200-400 km above the Earth's surface. Maximum Usable Frequency is denoted by Fmuf symbol.
How to calculate Maximum Usable Frequency in F-region using this online calculator? To use this online calculator for Maximum Usable Frequency in F-region, enter Critical Frequency (fc) & Angle of Incidence (θi) and hit the calculate button. Here is how the Maximum Usable Frequency in F-region calculation can be explained with given input values -> 420.0435 = 45/cos(1.46345857779697).