I am not able to understand the difference between scalloping and site error in VOR because the theoretical defination of both of them is almost same

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    $\begingroup$ Quote the definitions you’re confused about? $\endgroup$
    – StephenS
    Commented Feb 17, 2022 at 13:25
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    $\begingroup$ See at the end of this answer for the difference between scalloping and bending errors, and the definitions in ICAO documents (near this picture). $\endgroup$
    – mins
    Commented Feb 22, 2022 at 17:11

1 Answer 1


Scalloping error is smooth variation in the path provided by the VOR(radial in case of vor) within the specified limits.

Site error is the error in VOR signal due to site problem like terrain, alignment error, equipment error etc.

  • $\begingroup$ Can you please elaborate regarding scalloping. What does smooth variation in signal means $\endgroup$ Commented Apr 4, 2022 at 5:57

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