Satellite Interests Criticize 28 GHz Guard Band
The 50 MHz guard band between 28.35 and 28.4 GHz to protect upper microwave flexible use service (UMFUS) receivers from non-geostationary orbit (NGSO) earth stations in motion (ESIM) interference is wasteful and unnecessary, satellite interests said. In a docket 17-95…
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posting Thursday, the Satellite Industry Association recapped a meeting with FCC staff at which it and satellite company representatives argued that the 28 GHz UMFUS band is underused. SIA said the potential interference from NGSO ESIMs is no different from the potential interference from NGSO fixed terminals or from geostationary orbit fixed terminals or ESIMs, which can operate in the 28.35-28.4 GHz band. Satellite operators have demonstrated the interference risk is minuscule, the group said. A nationwide guard band to safeguard localized, limited UMFUS deployments that are already protected unduly limits NGSO ESIM services. Meeting with the FCC Space and Wireline Bureau staffers were representatives of Amazon, SES and Telesat.