| ITU-R Study Group: WP X | Document No: USWP-X |
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Purpose/Objective:
Abstract:
Official websites use .gov
A
.gov website belongs to an official government
organization in the United States.
Secure .gov websites use HTTPS
A
lock (
) or https:// means you’ve safely connected to
the .gov website. Share sensitive information only on official,
secure websites.