| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | CA | Air/ground | | | LF | Interference from | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | B | For inclusion in Preflight Infomation Bulletins | | | O | Operationally significant for IFR flights | | | / | | | Scope | A | Aerodrome information | | | E | En-Route information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 023 | 2300 feet QNE | | | / | | | Centre Latitude | 5150N | 51° 50' North' | | Centre Longitude | 00119W | 1° 19' West | | Radius of area affected | 002 | 2 nautical miles |
| | OXFORD RADAR / APPROACH MAY EXPERIENCE INTERFERENCE FOR AIR TRAFFIC CONTROL ON FREQUENCY 125.090MHZ INSIDE OF 40 MILES FROM THE AERODROME. |
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