| Significance | Code | Meaning |
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| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | OB | Obstacle | | | CE | erected | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | M | Miscellaneous | | | / | | | Scope | E | En-Route information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 003 | 300 feet QNE | | | / | | | Centre Latitude | 5051N | 50° 51' North' | | Centre Longitude | 00039W | 0° 39' West | | Radius of area affected | 001 | 1 nautical miles |
| | MAST AT POSITION : 505120N 0003927W ( FONTWELL ). UP TO 100FT ABOVE GROUND LEVEL / 300FT ABOVE MEAN SEA LEVEL.ON EXPIRY OF THIS NOTAM DETAILS WILL BE INCLUDED IN THE UK AERONAUTICAL INFORMATION PUBLICATION ENR 5.4.AR-2026-7074 / 02. |
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