[251] Proposed revision to Recommendation ITU-R P.1409-4 (for mountainous environments) - Propagation data and prediction methods for systems using high altitude platform stations and other elevated stations in the stratosphere at frequencies greater than about 700 MHz

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Document :	ITU-R R23-WP3M Contribution 251
Title :	Proposed revision to Recommendation ITU-R P.1409-4 (for mountainous environments) - Propagation data and prediction methods for systems using high altitude platform stations and other elevated stations in the stratosphere at frequencies greater than about 700 MHz
Date :	2026-05-26
Source :	Japan
Meeting :	2026-05-19
Access :	Restricted to TIES users [ITU-R]