This ruling by the United States Court of Appeals for the District of Columbia Circuit does not appear to impact Amateur Radio Super High Frequency (SHF) operation since—according to the ARRL US Amateur Radio Frequency Allocations page and Wikipedia ITU Region 2 frequency allocation chart—the 6GHz band is outside the Amateur Radio 5cm allocation (5.650–5.925 GHz).
From ARRL News …
Channels 1 and 2 on 60 meters will be available starting on August 30 for interoperability between US government and US amateur radio stations involved in Hurricane Ida emergency communications. This situation will remain in place until the storm has passed and the need for these channels no longer exists, or on September 6, whichever comes first.
These frequencies will be used: Channel 1 Primary voice traffic 5332 kHz channel center, 5330.5 kHz USB voice; and Channel 2 Digital traffic 5348 kHz channel center, 5346.5 kHz USB with 1.5 kHz offset to center of digital waveform. Stations on 60 meters are asked to yield to operational traffic related to Hurricane Ida. 1
In his A Sensitive Field Strength Meter for Foxhunting article (a free preview from the July 2021 issue of QST Magazine), Woody White, KZ4AK, presents the Field Strength Meter (FSM) for Foxhunting he built based on a design featured in the June 2001 QST article Simple RF-Power Measurement by Les Hayward, W7ZOI, and Bob Larking, W7PUA.
HamSCI is looking for ham radio operators to make recordings of time-standard stations during the June 2021 annular solar eclipse across the Arctic Circle as part of a citizen science experiment. Researchers will use the crowd-sourced data to investigate the superimposed effects of auroral particle precipitation and the eclipse on HF Doppler shift.
This video—from Rhode Schwartz—“is an introduction to the fundamental concepts of HF propagation, with special emphasis placed on skywave propagation and the role of the ionosphere.” 1