Together, these companies formed London District Signals, defined as 'Army Troops RE' in the TF organisation, serving HQ London District based at Horse Guards. The unit headquarters was at 12 Palmer Street, Westminster.
In June 1915, London District Signals joined IX Corps HQ forming at the Tower of London and went to Gallipoli as IX Corps Signals. After the evacuation from Gallipoli, the Corps HQ went to France and served on the Western Front until the end of the war. The Corps Signals also ran a Signals Training Centre.
Regimental Headquarters at Regency Street, London commanded by Lieutenant Colonel A. Hemsley, MBE, TD
No.1, 2, and 3 Signal Companies at Regency Street, London
Cadet Affiliation — 'D' Company, 1st West London Cadet Corps
World War II
Together, 1st and 6th AA Divisions defended London and the Thames Estuary during The Blitz. As the war developed, increasing numbers of women from the Auxiliary Territorial Service became integrated into AA and signals units, which were termed 'Mixed'. By June 1942, the composition of the two units was as follows: 1st AA Divisional Signals
Commanding Officer: Lieutenant-Colonel A. Hemsley, MBE, TD
** 315 AA Gun Operations Room Mixed Signal Section
** 112 RAF Fighter Sector Sub-Section
** 5 AA Line Maintenance Section
1st AA Divisional Signals had provided Anti-Aircraft Command's Signals section since the latter's establishment in 1938. Between 1940 and 1942, both 1st and 6th AA Divisions came under 1st Aa Corps, but from June 1942, 1st AA Division was directly under AA Command HQ. 6th AA Divisional Signals
** 329 AA Gun Operations Room Mixed Signal Section
** 37 AA Brigade Signal Office Mixed Sub-Section
** 309 AA Gun Operations Room Mixed Signal Section
** 15 AA Line Maintenance Section
* HQ No 2 Company:
** 328 AA Gun Operations Room Mixed Signal Section
** 28 AA Brigade Signal Office Mixed Sub-Section
** 56 AA Brigade Signal Office Mixed Sub-Section
** 101 RAF Fighter Sector Sub-Section
** 310 AA Gun Operations Room Mixed Signal Section
** 71 AA Brigade Signal Office Mixed Sub-Section
** 16 AA Line Maintenance Section
When AA Command was reorganised in October 1942 the two divisions became 1 AA Group and 2 AA Group, with the signals units renamed 1st and 2nd AA Group Signals. The two groups operated alongside No. 11 Group RAF and took a leading role in defence against V-1 flying bombs in 1944–45.
Postwar
On the re-establishment of the TA in 1947, 1 and 2 AA Group Signals re-merged and were numbered 11 AA Signal Regiment, 'Mixed' now indicating that members of the Women's Royal Army Corps were integrated into the unit. The new unit was based at Kensington. The unit was retained when AA Command was disbanded in 1955, becoming Eastern Command Mixed Signal Regiment, the East Anglian District Signal Regiment of the Army Emergency Reserve. Eastern Command Signal Regiment was numbered 83 Signal Regiment in 1959. Meanwhile, elements of 11 AA Signal Rgt joined the disbanding 259 Heavy Anti-Aircraft Regiment, Royal Artillery to form Home Counties District Signal Regiment with HQ at Shorncliffe. This became 62 Signal Regiment , and merged with 44 Signal Regiment in 1961. The size of the TA was reduced in 1967, when 83 Signal Regiment became 83 Signal Squadron and later 83 Support Squadron in 31 Signal Regiment, which was disbanded in 2010. In 2010, 83 Support Sqn was renamed 47 Signal Troop, and became part of 71 Signal Regiment. The Troop is based in Uxbridge and Southfields.