| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | XX | Miscellaneous | | | LW | will take place | | | / | | | 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 | | | W | Navigational Warning | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 206 | 20600 feet QNE | | | / | | | Centre Latitude | 5056N | 50° 56' North' | | Centre Longitude | 00239W | 2° 39' West | | Radius of area affected | 006 | 6 nautical miles |
| | GROUND TRANSPONDER TESTING.TRANSPONDER LOCATED AT : 505616N 0023904W ( VICINITY OF YEOVIL / WESTLAND AERODROME ). POSSIBLE FALSE AIRCRAFT INDICATIONS MAY OCCUR WITHIN 5NM RADIUS.ALTITUDE DISPLAYED WILL MOSTLY BE 3000FT ABOVE GROUND LEVEL BUT WILL RANGE FROM-600FT BELOW GROUND TO 20000FT ABOVE GROUND LEVEL.MODE A CODE 7776.TRANSPONDER MAY BRIEFLY SQUAWK EMERG CODES DURING THE TEST PERIOD.DIRECT OVERFLIGHT BELOW 100FT SHOULD BE AVOIDED.FOR INFO 01935 703050 / 07702 621575.AR-2026-6863 / 01. |
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