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Home > Exam Questions > ATPL - Airline Transport Pilot Licence > Radio Navigation > For comparable ground targets in a conventional radar mapping mode, the purpose of a cosecant-squared vertical beam pattern is mainly to:

185 - ATPL Question Bank in English - For comparable ground targets in a conventional radar mapping mode, the purpose of a cosecant-squared vertical beam pattern is mainly to:

Question 185 - Radio Navigation - ATPL - Airline Transport Pilot Licence

Eliminate all differences in reflectivity between land and sea.

Remove radio-horizon limitations and provide unlimited range.

Distribute gain to compensate for range attenuation, helping similar ground targets give more nearly comparable returns over the useful mapping region.

Replace the broad vertical mapping beam with a narrower pencil beam.

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