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| __RADAR-Alt Interference__ (U.S.). In the band below 4 400-4 940 MHz, there has been major controversy regarding 5G compatibility in the band 3 700-3 980 MHz, with radar altimeters (R- Alt) operating in the band 4 200-4 400 MHz. A Federal Aviation Administration (FAA) Special Airworthiness Information Bulletin calls on R-Alt vendors and others to provide data on specific R-Alts, and to assess the need for further mitigation. Meanwhile, AT&T and Verizon have agreed to delay deployment of certain 5G operations in 3 700-3 980 MHz. | __RADAR-Alt Interference__ (U.S.). In the band below 4 400-4 940 MHz, there has been major controversy regarding 5G compatibility in the band 3 700-3 980 MHz, with radar altimeters (R- Alt) operating in the band 4 200-4 400 MHz. A Federal Aviation Administration (FAA) Special Airworthiness Information Bulletin calls on R-Alt vendors and others to provide data on specific R-Alts, and to assess the need for further mitigation. Meanwhile, AT&T and Verizon have agreed to delay deployment of certain 5G operations in 3 700-3 980 MHz. | ||
| - | __Future Spectrum Legislation__ (U.S.). The recently signed Budget Reconciliation Bill (H.R. 1) mandates that at least 800 megahertz of spectrum be auctioned to support US Domestic commercial high powered wireless operations before September 30, 2034, with the first tranche auctioned rom the non-government 3 980 – 4 200 MHz band (at least 100 MHz) by no later than July 4, 2027. The bands under consideration for this requirement include the so-called” covered band,” namely, spectrum between 1.3 and 10.5 GHz (excluding 3.1-3.45 GHz and 7.4-8.4 GHz and, presumably, other bands already auctioned for commercial uses). NTIA was provided $50M to conduct a “timely spectrum analysis” of 2 700 – 2 900 MHz, 4 400 – 4 900 MHz, and 7 250 – 7 400 MHz to “support” the NTIA Administrator with no specified deadline other than September 30, 2034, at the outside. AMT is a current user of the 4 400 – 4 940 MHz band in the US, and multiple developmental efforts are currently funded related to future AMT technologies and capabilities in this band. US users will need to monitor the forthcoming NTIA analyses and recommendations of spectrum bands for auction to satisfy the 800-megahertz target to ensure there are no impacts to telemetry operations from this recently signed Bill. | + | __C-Band Study by NTIA__ (U.S.). The recently signed Budget Reconciliation Bill (H.R. 1) mandates that at least 800 megahertz of spectrum be auctioned to support US Domestic commercial high powered wireless operations before September 30, 2034, with the first tranche auctioned rom the non-government 3 980 – 4 200 MHz band (at least 100 MHz) by no later than July 4, 2027. The bands under consideration for this requirement include the so-called” covered band,” namely, spectrum between 1.3 and 10.5 GHz (excluding 3.1-3.45 GHz and 7.4-8.4 GHz and, presumably, other bands already auctioned for commercial uses). NTIA was provided $50M to conduct a “timely spectrum analysis” of 2 700 – 2 900 MHz, 4 400 – 4 900 MHz, and 7 250 – 7 400 MHz to “support” the NTIA Administrator with no specified deadline other than September 30, 2034, at the outside. AMT is a current user of the 4 400 – 4 940 MHz band in the US, and multiple developmental efforts are currently funded related to future AMT technologies and capabilities in this band. US users will need to monitor the forthcoming NTIA analyses and recommendations of spectrum bands for auction to satisfy the 800-megahertz target to ensure there are no impacts to telemetry operations from this recently signed Bill. |