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ITU RR table: 1 610-1 660 MHz
The L-band MSS uplink and radionavigation satellite band, used by LEO satellite constellations including Iridium (1616–1626.5 MHz) and Globalstar (1610–1618.5 MHz). It also hosts radio astronomy allocations protecting the OH spectral line at 1612 MHz — an internationally recognised quiet zone for passive sensing.
On the WRC-27 agenda
This band — or part of it — is under study for the 2027 World Radiocommunication Conference. The agenda items below address it:
Country-specific Spectrum Rules
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