| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | RO | Overflying restriction | | | XX | miscellaneous plain language | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | N | For immediate attention of aircraft operators | | | B | For inclusion in Preflight Infomation Bulletins | | | O | Operationally significant for IFR flights | | | / | | | Scope | W | Navigational Warning | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 015 | 1500 feet QNE | | | / | | | Centre Latitude | 5433N | 54° 33' North' | | Centre Longitude | 00225W | 2° 25' West | | Radius of area affected | 001 | 1 nautical miles |
| | E BAND HIGH INTENSITY RADIO TRANSMISSION AREA ( HIRTA ) IN LOW FLYING AREA 17 AND NIGHT SECTOR 3BE AT POSITION 543308N 0022442W,( SANDFORD,WESTMORLAND AND FURNESS ) RADIUS 0.1NM.MAXIMUM HEIGHT 900FT ABOVE GROUND LEVEL.25 / 02 / 057 / LFC SAFE DISTANCES CIVILIAN AIRCRAFT 0NM 0FT ABOVE GROUND LEVEL MILITARY AIRCRAFT SUSCEPTIBILITY VERY LOW CW SUSCEPTIBILITY 0NM 0FT ABOVE GROUND LEVEL LOW CW SUSCEPTIBILITY 0NM 0FT ABOVE GROUND LEVEL CW SUSCEPTIBILITY 0.1635NM 437FT ABOVE GROUND LEVEL HIGH SUSCEPTIBILITY 0.3001NM 852FT ABOVE GROUND LEVEL PULSE LOW SUSCEPTIBILITY 0NM 0FT ABOVE GROUND LEVEL MEDIUM SUSCEPTIBILITY 0NM 0FT ABOVE GROUND LEVEL PULSE HIGH SUSCEPTIBILITY 0NM 0FT ABOVE GROUND LEVEL |
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