The Satellite Industry Assn. (SIA) and some members told the FCC ...
The Satellite Industry Assn. (SIA) and some members told the FCC they were concerned that use of unlicensed devices in the 3650-3700 MHz band would cause interference to fixed satellite service (FSS) operators. In a letter to the Commission,…
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SIA said the band isn’t needed only for U.S. commercial and govt. use, but for international satellite services because the band is globally allocated for FSS operations on a primary basis. SIA said new earth station licensees authorized in the band on a secondary basis should also be protected from unlicensed users, by shutting down unlicensed links if necessary. Even some proposed solutions, like adaptive frequency hopping to avoid interference, might not work, SIA said: “No standard uplink channel associated with a downlink channel means that unlicensed devices don’t know where to ‘listen’ before transmitting. Receive-only earth stations, or earth stations with asymmetrical transmissions may be subjected to interference because no transmit channel [is] associated with receive frequencies.” SIA said requiring registration for high power, fixed point- to-point transmitters could help earth station operators locate the unlicensed devices if interference occurs.