Aircraft must follow tower clearance for the first frequency change after takeoff during an automatic frequency-change test.

G4850/26

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COMATS Communication

Aircraft must follow tower clearance for the first frequency change after takeoff during an automatic frequency-change test.

2026-10-28 03:21 - 2027-01-31 15:59

Duration:LONG4 months

Period of Applicability

2026-10-28 03:21 - 2027-01-31 15:59

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Interpretation

The aerodrome is testing automatic frequency changes after takeoff during certain periods. Tower ATC will specify the first contact frequency and whether automatic frequency change is authorized in the clearance; aircraft must switch to the designated frequency after takeoff if authorized, or wait for an ATC voice clearance.

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Raw NOTAM

G4850/26 NOTAMR G3570/26
Q)ZJSA/QXXXX/IV/NBO/A/000/999/1818N10925E005
A)ZJSY B)2610280321 C)2701311559
E) AD IMPLEMENTS TAKEOFF AUTOMATIC LEAVE FREQUENCY TEST DURING
CERTAIN PERIODS:
TOWER ATC WILL SPECIFY THE FIRST CONTACT FREQUENCY AFTER ACFT
TAKEOFF AND WHETHER  TO IMPLEMENT AUTOMATIC LEAVE FREQUENCY IN THE
ATC CLEARANCE. ACFT SHALL CONTACT DESIGNATED FREQUENCY
AUTOMATICALLY AFTER TAKEOFF BY ATC CLEARANCE OR CONTACT DESIGNATED
FREQUENCY AFTER ATC VOICE CLEARANCE.

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