Air of Authority - A History of RAF Organisation
No 90 (Signals) Group - November 1949
[Northern Signals Area | Central Signals Area | Southern Signals Area]
HQ - 'Danesfield Court', Medmenham, Marlow, Buckinghamshire
| Unit | Location/Address | Notes |
| Signals Development Unit | RAF Henlow | Station in TTC |
| RAF Station Watton | ||
| Central Signals Establishment | RAF Watton | |
| RAF Station Shepherd's Grove | Satellite of Watton |
HQ - RAF Sutton Bridge
| Unit | Location/Address | Notes |
| M/F D/F Station | Acklington, Northumberland | |
| CHL Station | Bard Hill | Salthouse, Holt, Norfolk |
| CH, CHL, CHEL Station | Bawdsey | Suffolk |
| CHL, CHEL Station | Bempton | Grange Farm, Bempton East Yorkshire |
| M/F D/F Station | Bircham Newton, Norfolk | |
| CH Station (Caretaking) | Canewdon | Rochford, Essex |
| GEE Slave | Clee Hill AMES | Ludlow, Shropshire |
| M/F D/F Station | Comber | |
| GEE Master | Daventry | Northamptonshire |
| CHEL Station | Dimlington | Hull |
| GCI Station (Caretaking) | Dirleton | |
| GCI Station (Caretaking) | Hack Green | |
| CHL Station | Happisburgh | Norwich |
| CH Station (C & M) | High Street, Darsham | |
| CHL, CHEL Station | Hopton | Great Yarmouth |
| CHL Station | Humberston | Cleethorpes, Lincolnshire |
| M/F D/F Station | Leuchars, Fife | |
| GCI Station (C & M) | Northstead | |
| GCI Station (C & M) | Orby | |
| M/F D/F Station | Sealand | |
| GCI Station(Caretaking) | Seaton Snook | |
| CHEL Station | Skendleby | Spilsby, Lincolnshire |
| CH Station, GEE Slave | Stenigot | Louth, Lincolnshire |
| CH Station | Stoke Holy Cross | Swainsthorpe, Norwich |
| M/F D/F Station | Stornoway, Isle of Lewis | |
| M/F D/F Station | Sumburgh, Shetland | |
| CHEL Station | Trimmingham | Norfolk |
| CH, CHEL Station | West Beckham | Holt, Norfolk |
| M/F D/F Station | Wick, Caithness | |
| OBOE Station | Winterton | Great Yarmouth, Norfolk |
HQ - Bletchley
| Unit | Location/Address | Notes |
| RAF Station Blackbrook | Haydock, Lancashire | |
| North-West Signals Centre | RAF Blackbrook | |
RAF Station Cheadle
|
Stoke on Trent
|
|
| RAF Station Chicksands | Shefford, Bedfordshire | |
| Standby Signals Centre | RAF Chicksands | |
| W/T Station | Dagnall | |
| Meteorological Communications Centre | Dunstable | |
| W/T Station | Greatworth | |
| South West Signals Centre | Hawthorne | |
| RAF Signals Office | London (Kingsway) | |
| RAF Central Signals Centre | RAF Stanbridge | |
| W/T Station | Stoke Hammond | |
| W/T Station (C & M) | Weyhill |
HQ - RAF Welford
| Unit | Location/Address | Notes |
| M/F D/F Station | Andover | |
| CH Station | Boniface Down | Ventnor, Isle of Wight |
| GEE Master | Bullbarrow Hill | Dorset |
| CH Station | Dunkirk (C & M) | |
| GCI Station(Caretaking) | Exminster | |
| CHL, CHEL Station | Fairlight | Hastings |
| GEE Master | Folly | |
| GEE Master | Gibbett Hill | Hindhead |
| OBOE Station | Hawkshill Down | Walmer |
| M/F D/F Station | Lympne | Kent |
| M/F D/F Station | Pendeen | |
| CH Station | Pevensey (C & M) | Sussex |
| M/F D/F Station | Plympton | |
| CH Station | Poling | Sussex |
| CH Station | Ringstead | Dorset |
| CH Station | Rye | Isle of Wight |
| M/F D/F Station | St Buryan | Cornwall |
| CHEL Station | St Margarets Bay | Dover |
| GEE Slave | Sennen | Cornwall |
| GEE Master | Sharpitor | Yelverton, Devon |
| CH, CHL Station | Swingate | Dover |
| M/F D/F Station | Talbenny, | Pembrokeshire |
| CHEL Station | The Verne | Portland, Dorset |
| GEE Monitor | Trerew | Newquay |
| CHEL Station, GEE Slave | Truleigh Hill | Shoreham, Sussex |
| CH, CHL Station | Ventnor | Isle of Wight |
| CHL Station | Westcliff | Portland, Dorset |
| GEE Slave | West Prawle | Devon |
| GEE Slave & Monitor | Worth Matravers | Swanage |
Source - SD161 (110th Edition) - November 1949
[Northern Signals Area | Central Signals Area | Southern Signals Area]
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