If a particular RFF specifies a different DF error angle than 4º, what determines the actual DF error angle used in calculations?

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Multiple Choice

If a particular RFF specifies a different DF error angle than 4º, what determines the actual DF error angle used in calculations?

Explanation:
The value used for the DF error angle comes from the RFF specification itself. That standard defines the allowable DF error angle for calculations, so if a particular RFF calls for a different angle than 4º, you must use the angle specified by that RFF in your calculations. The other factors listed—antenna height, date of calculation, and geographic location—don’t set this error angle; they may affect other aspects of the procedure or results, but the DF error angle is determined by the RFF you’re following.

The value used for the DF error angle comes from the RFF specification itself. That standard defines the allowable DF error angle for calculations, so if a particular RFF calls for a different angle than 4º, you must use the angle specified by that RFF in your calculations. The other factors listed—antenna height, date of calculation, and geographic location—don’t set this error angle; they may affect other aspects of the procedure or results, but the DF error angle is determined by the RFF you’re following.

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