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Critical Frequency of Ionosphere Calculator

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Wave Propagation Antenna Theory Parameters Special Antennas

✖Electron Density refers to the concentration or number of electrons per unit volume in a given material or medium.ⓘ Electron Density [N_max]

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✖Critical Frequency of Ionosphere is the highest magnitude of frequency above which the waves penetrate the ionosphere and below which the waves are reflected back from the ionosphere.ⓘ Critical Frequency of Ionosphere [F_c]

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Critical Frequency of Ionosphere Solution

STEP 0: Pre-Calculation Summary

Formula Used

Critical Frequency of Ionosphere = 9*sqrt(Electron Density)
F_c = 9*sqrt(N_max)
This formula uses 1 Functions, 2 Variables

Functions Used

sqrt - A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number., sqrt(Number)

Variables Used

Critical Frequency of Ionosphere - (Measured in Hertz) - Critical Frequency of Ionosphere is the highest magnitude of frequency above which the waves penetrate the ionosphere and below which the waves are reflected back from the ionosphere.
Electron Density - (Measured in 1 per Cubic Meter) - Electron Density refers to the concentration or number of electrons per unit volume in a given material or medium.

STEP 1: Convert Input(s) to Base Unit

Electron Density: 20000000000 1 per Cubic Centimeter --> 2E+16 1 per Cubic Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

F_c = 9*sqrt(N_max) --> 9*sqrt(2E+16)

Evaluating ... ...

F_c = 1272792206.13579

STEP 3: Convert Result to Output's Unit

1272792206.13579 Hertz --> No Conversion Required

FINAL ANSWER

1272792206.13579 ≈ 1.3E+9 Hertz <-- Critical Frequency of Ionosphere

(Calculation completed in 00.020 seconds)

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Created by Shobhit Dimri

Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat

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< Wave Propagation Calculators

Refractive Index of Ionosphere

LaTeX Go Refractive Index = sqrt(1-((81*Electron Density)/Operating Frequency^2))

Maximum Usable Frequency in F-region

LaTeX Go Maximum Usable Frequency = Critical Frequency/cos(Angle of Incidence)

Electron Density

LaTeX Go Electron Density = ((1-Refractive Index^2)*Operating Frequency^2)/81

Critical Frequency of Ionosphere

LaTeX Go Critical Frequency of Ionosphere = 9*sqrt(Electron Density)

Critical Frequency of Ionosphere Formula

LaTeX Go

Critical Frequency of Ionosphere = 9*sqrt(Electron Density)
F_c = 9*sqrt(N_max)

What is Ionospheric Propagation?

In radio communication, skywave or skip refers to the propagation of radio waves reflected or refracted back toward Earth from the ionosphere, an electrically charged layer of the upper atmosphere. Line-of-sight propagation, in which radio waves travel in a straight line, the dominant mode at higher frequencies.

How to Calculate Critical Frequency of Ionosphere?

Critical Frequency of Ionosphere calculator uses Critical Frequency of Ionosphere = 9*sqrt(Electron Density) to calculate the Critical Frequency of Ionosphere, The Critical Frequency of Ionosphere formula is defined as the highest magnitude of frequency above which the waves penetrate the ionosphere and below which the waves are reflected back from the ionosphere. Critical Frequency of Ionosphere is denoted by F_c symbol.

How to calculate Critical Frequency of Ionosphere using this online calculator? To use this online calculator for Critical Frequency of Ionosphere, enter Electron Density (N_max) and hit the calculate button. Here is how the Critical Frequency of Ionosphere calculation can be explained with given input values -> 1.3E+9 = 9*sqrt(2E+16).

FAQ

What is Critical Frequency of Ionosphere?

The Critical Frequency of Ionosphere formula is defined as the highest magnitude of frequency above which the waves penetrate the ionosphere and below which the waves are reflected back from the ionosphere and is represented as F_c = 9*sqrt(N_max) or Critical Frequency of Ionosphere = 9*sqrt(Electron Density). Electron Density refers to the concentration or number of electrons per unit volume in a given material or medium.

How to calculate Critical Frequency of Ionosphere?

The Critical Frequency of Ionosphere formula is defined as the highest magnitude of frequency above which the waves penetrate the ionosphere and below which the waves are reflected back from the ionosphere is calculated using Critical Frequency of Ionosphere = 9*sqrt(Electron Density). To calculate Critical Frequency of Ionosphere, you need Electron Density (N_max). With our tool, you need to enter the respective value for Electron Density and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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