ADS-B-based ATS surveillance services are available in Coimbatore CTR/CTA on VHF 120.050 MHz, with service outside scheduled hours provided on an opportunity basis.

A2921/26

EST

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COMSurveillance Systems

ADS-B-based ATS surveillance services are available in Coimbatore CTR/CTA on VHF 120.050 MHz, with service outside scheduled hours provided on an opportunity basis.

2026-09-24 04:30 - 2026-12-24 07:30

Duration:aggregated 9 days EST

Period of Applicability

2026-09-24 04:30 - 2026-12-24 07:30

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Interpretation

ADS-B-based ATS surveillance services are provided to suitably equipped aircraft within ADS-B sensor coverage in Coimbatore CTR/CTA on VHF 120.050 MHz, Monday through Friday from 0430 to 0730 UTC; outside these hours, the services are provided on an opportunity basis.

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Raw NOTAM

A2921/26 NOTAMR A2030/26
Q) VOMF/QCBXX/IV/BO/AE/000/999/1102N07702E250
A) VOCB B) 2609240430 C) 2612240730EST
D) MON-FRI 0430-0730
E) ADS-B BASED ATS SURVEILLANCE SERVICES ARE PROVIDED
TO SUITABLY EQUIPPED ACFT WI THE COVERAGE OF ADS-B
SENSORS ON VHF 120.050MHZ WI COIMBATORE CTR/CTA BTN
0430 AND 0730 UTC AND BEYOND THIS TIME ADS-B BASED
ATS SURVEILLANCE SERVICES ARE PROVIDED ON OPPORTUNITY
BASIS

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