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M0269/26
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GPS testing near Alvin Callender Field may prevent aircraft from using GPS, including WAAS, GBAS, and ADS-B.

2026-08-12 20:14 - 2026-08-20 04:00
Duration:8 days

Period of Applicability

2026-08-12 20:14 - 2026-08-20 04:00

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Interpretation

GPS testing near Alvin Callender Field from 13 August 2026 through 20 August 2026, daily from 0500 to 1600 local time (1000Z to 2100Z), may prevent aircraft from using GPS, including WAAS, GBAS, and ADS-B.

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Raw NOTAM

M0269/26 NOTAMN Q) ZHU/QFALT/IV/NBO/A/000/999/2949N09001W005 A) KNBG B) 2608122014 C) 2608200400 E) GPS TESTING WITHIN THE VICINITY OF ALVIN CALLENDER FIELD FROM 13 AUG 26 UNTIL 20 AUG 26, 0500L (1000Z) -1600L (2100Z), GPS TESTING MAY NEGATE THE ABILITY OF AIRCRAFT TO USE GPS (INCLUDING WAAS, GBAS, AND ADS-B).
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