If anyone cares how this is impacting aviation rather than the likely more appropriate debate of if this should impact aviation... It stops an airplane from lan

If anyone cares how this is impacting aviation rather than the likely more appropriate debate of if this should impact aviation... It stops an airplane from landing in a 93 foot range of weather, if the clouds are between 107 feet and 200 feet above the runway (okay at one airport for one approach for one runway - but it's likely +- 50' true at most places, see below). In bad weather certain aircraft rely on their radar altimeter to help guide them to the runway. It gives them an altitude they can use to decide to abort their approach that is more accurate than air pressure combined with their inertial system. This below link shows that within a given distance of 5G they are not allowed to rely on their radar altimeter for those approaches. http://www.alpa.org/resources/aircraft-operations-radar-altimeter-interference-5G http://www.alpa.org/resources/aircraft-operations-radar-alti... > When operating in U.S. airspace, the following operations requiring radio altimeter are prohibited in the presence of 5G C-Band wireless broadband interference > Instrument Landing System (ILS) Instrument Approach Procedures (IAP) SA CAT I, SA CAT II, CAT II, and CAT III Below is the link for the S-ILS RWY 36 for DFW that requires SA CAT II. At the bottom you can see "RA 107/12" which means the airplane can fly down to 107' on RA (Radar Altimeter) without seeing the runway. At 107', if they don't see the runway environment, they must abort the approach. This approach assumes a working Radar Altimeter. The 5G NOTAMS effect this approach. https://resources.globalair.com/dtpp/globalair_06039I36LSAC2.PDF https://resources.globalair.com/dtpp/globalair_06039I36LSAC2... Below is the NOTAM for DFW affecting approaches. With this NOTAM an aircraft cannot execute the above approach, so if the weather is between 107' and 200' (the minimum for a regular ILS without RA), then they are not allowed to land at that airport - where before the 5G NOTAM they could. This is the narrow band of bad weather conditions in which the 5G affects approaches at DFW for that runway, 93 feet. In the NOTAM you will see the above approach "ILS RWY 36L (SA CAT II)" listed and "PROCEDURE NA [not available] EXC [except] FOR ACFT [aircraft] USING APPROVED ALTERNATIVE METHODS OF COMPLIANCE DUE TO 5G C-BAND INTERFERENCE PLUS SEE AIRWORTHINESS DIRECTIVES" > FDC 2/3758 (A0495/22) - IAP DALLAS-FORT WORTH INTL, DALLAS-FORT WORTH, TX. ILS RWY 17C (SA CAT I), AMDT 11B ... ILS RWY 17L (SA CAT I), AMDT 7 ... ILS RWY 18R (SA CAT I), AMDT 8A ... ILS RWY 35C (SA CAT I), AMDT 3 ... ILS RWY 35R (SA CAT I), AMDT 4B ... ILS RWY 13R (SA CAT I - II), AMDT 9B ... ILS RWY 17R (SA CAT I - II), AMDT 23D ... ILS RWY 18L (SA CAT I - II), AMDT 3 ... ILS RWY 31R (SA CAT I - II), AMDT 15 ... ILS RWY 17C (CAT II - III), AMDT 11B ... ILS RWY 17L (CAT II - III), AMDT 7 ... ILS RWY 18R (CAT II - III), AMDT 8A ... ILS RWY 35C (CAT II - III), AMDT 3 ... ILS RWY 35R (CAT II - III), AMDT 4B ... ILS RWY 36L (SA CAT II), AMDT 4 ... PROCEDURE NA EXC FOR ACFT USING APPROVED ALTERNATIVE METHODS OF COMPLIANCE DUE TO 5G C-BAND INTERFERENCE PLUS SEE AIRWORTHINESS DIRECTIVES 2021-23-12, 2021-23-13. 19 JAN 05:00 2022 UNTIL 19 JAN 05:04 2024 ESTIMATED. CREATED: 13 JAN 05:05 2022