| Significance | Code | Meaning |
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| FIR | EGPX | Scottish 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 | 029 | 2900 feet QNE | | | / | | | Centre Latitude | 5531N | 55° 31' North' | | Centre Longitude | 00140W | 1° 40' West | | Radius of area affected | 002 | 2 nautical miles |
| | E BAND HIGH INTENSITY RADIO TRANSMISSION AREA ( HIRTA ) OPERATING WITHIN 1NM OF POSITION 553126N 0014027W ( RAF BRUNTON,NORTHUMBERLAND ) LOW FLYING AREA 12 AND NIGHT SECTOR 4AN.MAXIMUM HEIGHT 2738FT ABOVE GROUND LEVEL.26 / 09 / 116 / LFC SAFE DISTANCES CIVILIAN AIRCRAFT 0.4484NM 2447FT ABOVE GROUND LEVEL MILITARY AIRCRAFT SUSCEPTIBILITY VERY LOW 0.0982NM 318FT ABOVE GROUND LEVEL LOW 0.1939NM 899FT ABOVE GROUND LEVEL MEDIUM 0.2752NM 1393FT ABOVE GROUND LEVEL HIGH 0.4965NM 2738FT ABOVE GROUND LEVEL PULSE LOW 0.1132NM 409FT ABOVE GROUND LEVEL PULSE MEDIUM 0.1724NM 768FT ABOVE GROUND LEVEL PULSE HIGH 0.2907NM 1488FT ABOVE GROUND LEVEL |
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