Has anyone looked in detail at the FCC's proposal to license 3550-3650 MHz for "Citizens Broadband Radio Service"?
http://www.fcc.gov/document/proposes-creation-new-citizens-broadband-radio-service-35-ghz
It looks like these new transmissions, if approved, would primarily affect reception of below-band C-band signals from foreign satellites. I've only found a few of these, mostly over the Atlantic and Pacific.
The comments received are here: http://apps.fcc.gov/ecfs/proceeding/view?name=12-354
Earth Stations in the C-Band
In addition to protections for FSS earth stations in the 3.5 GHz Band, we sought
comment on the degree to which the performance of FSS receivers in the C-Band could be affected by
Citizens Broadband Radio Service users. We also sought comment on methods for mitigating potential
harmful interference from Citizens Broadband Radio Service operations into these receivers. Parties
submitted multiple comments, presentations, and technical analyses related to this issue. These
submissions relied on very different assumptions about CBSDs, the capabilities of the SAS, receiver
performance, and other technical criteria and, as a result, commenters reached very different conclusions
regarding the need for protection for C-Band earth stations.
...
According to Comsearch, interference could occur at a range of up to 47.6 km from C-Band receivers
with typical separation distances of 5.1 km if Category A devices are authorized by the Commission.
The typical separation distance would be reduced to 0.7 km if devices are limited to Category B emission
limits.
http://www.fcc.gov/document/proposes-creation-new-citizens-broadband-radio-service-35-ghz
It looks like these new transmissions, if approved, would primarily affect reception of below-band C-band signals from foreign satellites. I've only found a few of these, mostly over the Atlantic and Pacific.
The comments received are here: http://apps.fcc.gov/ecfs/proceeding/view?name=12-354
Earth Stations in the C-Band
In addition to protections for FSS earth stations in the 3.5 GHz Band, we sought
comment on the degree to which the performance of FSS receivers in the C-Band could be affected by
Citizens Broadband Radio Service users. We also sought comment on methods for mitigating potential
harmful interference from Citizens Broadband Radio Service operations into these receivers. Parties
submitted multiple comments, presentations, and technical analyses related to this issue. These
submissions relied on very different assumptions about CBSDs, the capabilities of the SAS, receiver
performance, and other technical criteria and, as a result, commenters reached very different conclusions
regarding the need for protection for C-Band earth stations.
...
According to Comsearch, interference could occur at a range of up to 47.6 km from C-Band receivers
with typical separation distances of 5.1 km if Category A devices are authorized by the Commission.
The typical separation distance would be reduced to 0.7 km if devices are limited to Category B emission
limits.
