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ITU P.372-14 gives Figure 39, a graph of median values of man made noise in a range of precincts.
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The graph is based on a given expression and a table of coefficients.
The calculator will solve for curve E down to the intersection with curve D (1.931MHz), but the results are not valid below foF2 (as varies from time to time).
This calculator solves that expression for the given value, and calculates the value of Fam, and Tam.
Factors are correct for ITU-R P.372-16 (8/2022).
The calculator does not do a lot of error checking, if frequency is outside the range shown in Figure 10, it will be appended with "***"
| Version | Date | Description |
| 1.01 | 03/01/2018 | Initial. |
| 1.02 | 21/09/2019 | P.372-14 |
| 1.03 | ||
| 1.04 | ||
| 1.05 |
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