The American Cable Association told the FCC this week that while it supports more efficient and flexible use of the C-band satellite spectrum, if the FCC does not protect incumbent users it could have an outsized effect on smaller operators in rural areas where fiber is not an option.

Cable networks use the band to deliver their programming to thousands of operators, who distribute it to millions of customers, but that could all be at risk, ACA told the FCC, if the commission combines a spectrum reallocation with a reduction in interference protections.

The FCC in July voted unanimously to find ways to open up the C-band spectrum (3.7-4.2 Ghz) for terrestrial wireless use, either all of the 500 Mhz or some portion of it, and through either an incentive or capacity auction, a market mechanism where incumbents voluntarily strike deals to reduce their footprint, or some other means

The C-band is currently used for satellite delivery of programming to TV and radio stations, satellite radio services, and cable head-ends. The FCC wants to open it up to wireless broadband to help close the digital divide and promote 5G, both prime directives for the commission.