DO No 27 of June 22, duties of AD (CI), Brig R Elsdale; DD 1 to Section Heads, BP...

DO No 27 of June 22, duties of AD (CI), Brig R Elsdale; DD 1 to Section Heads, BP Daily operational Report to cease from June 18; CSC to EWT June 19 covering his note to C on expansion of Sigint output from Hut 3 and requirement for increase in Sigint channel support capacity, with supporting technical data from VIII D at SIS; WTC to DD (Y) June 16 re WO admin over-riding GCCS operational control of Sigint stations, reduction of cover at Shenley, WTC to DD 1 June 27 on GP cover at Shenley and Kedleston, WO wished to transfer 5 Shenley sets to Forest Moor; Sayer to Edwards of AS June 16 on F sets being released for E, to DD (AS) for Edwards re excessive no of sets on F cover; exchanges between BEW and HBS re cover at Whitchurch; J de G to HBS, BEW and WEC re general search at Tean June 16, OC Cheadle to J de G June 28 agreeing that Tean search positions log E on separate logs; WTC to Hut 6 June 17 on E cover since D-Day, also to MS on same subject; Hut 6 to WTC June 17 re E traffic from Chicksands, by printer and DRLS, Huts 6 and 8 to EWT June 17 re despatch of Naval E from Chicksands; WTC to DDI 4 June 18 following Air Cdr Lywood's discussions at BP with Brig Elsdale, DR service to Chicksands to be increased, no additional printers to be installed; exchanges between CCO Telecomms Section, WTC and Chicksands June 21-23 re despatch of Chicksands E output to BP, extra DRLS runs to be introduced; J de G's comments June 17 on observations by other members of WTC on his visit to Hawklaw; WTC to EWT June 18 on results of plan to increase cover for W Front; WTC to Hut 6 June 20 on transfer of E cover from Whitchurch to Forest Moor, Whitchurch to be re-organised, WTC to EWT June 22 all E transferred to Forest Moor from Whitchurch, Whitchurch to become exclusively printer intercept station, H Townshend at GPO HQ to EWT re upgrading of Whitchurch June 23; WTC to OC Cheadle re search logs at Tean June 21; DD (Y) to WTC June 22 re retention of Shenley as operational Sigint site, again to WTC June 24 replying to Sayer's letter of June 14 following Beaumanor meeting of June 13; Blair-Cunnynghame to DD (Y) June 23 re meeting at WO June 14 on E MF, extra E positions at Broadstairs and E training at Harpendon, June 19 minutes of June 14 WO meeting; WTC to DD (3) June 23 with list to send to US of the 8 Army static Sigint stations in UK and the 10 Army static/semi-static Sigint stations abroad, lists of Naval stations already exchanged between UK and US; June 23 draft of J de G's lecture to Kedleston with M/S amendments, summarises UK Sigint organisation and describes GP, the main task of Kedleston; J de G's report on visit to Kingsdown June 28; WTC to GPS June 25 suggesting closure of GP intercept from Polish Sigint site at Stanmore, agreed June 26; from Lt Col Blair-Cunnynghame June 18, Major Dryden to run 6-day courses at BP on new German cypher expected to be introduced Aug 1, students from 1 SIC and ETOUSA Weymouth Street to attend, B-Cunnynghame to Col Tiltman June 26 on proposed formation of special analysis party to attack new German Army code expected Aug 1, personnel to come from BP, 21 AG, ETOUSA and AF HQ Algiers, scheme approved by EWT June 27, Lt Col Pritchard to be I/C; DDMI (O) to DMS (A) June 20, Col Tiltman to leave post as CMW and be seconded for special duties not financed by Army funds, Lt Col Jacob nominated as new CMW, C to DMI Maj Gen Sinclair June 25, Tiltman to be transferred to MI-6 as Chief Cryptographer BP, Jacob to replace him as CMW if Sinclair agrees, DMI to C June 29 recommending Col Tiltman be promoted to Brig as Chief Cryptographer BP, having been replaced as CMW by Lt Col Jacob; WTC on ATS Sigint courses at Hampstead June 29; next Station Commanders' conference to be held July 27 at Kedleston Hall, vice July 12 at Shenley; DD (Y) to EWT June 17 re Col Scott's letter to him of June 9 re Security Instruction C; minutes of meeting at SHAEF June 20 to discuss Allied Comsec, GCCS to monitor comms of 5 Allied Nations; DD 1 to C June 22 re breaking of Spanish Police cyphers and suggested distribution of reports, C replies June 23, no case for increasing cover, reports of marginal intelligence value; Gp Capt Jones order to Hut 3 on handling of Sigint on V1 Crossbow June 17 and 20, similar order from Wing Cdr Garrett to AS, all material to be passed to Hut 3, Cheadle associates unusual tones on MF with V Weapons June 19, AS directive lifts restrictions on all Crossbow V1 reporting June 21; Met Section weekly notes for w.e. June 17 and 24; AS to DD 3 June 18 re problems with telephone link to Kingsdown; recommendation for promoting 4 DOs from SDE Section from F/O to F/L June 19; AS instructions for reporting decodes of F traffic June 27; AF HQ to Col Bicher at ETOUSA June 19 re unusual transmissions on GAF links June 20, Bicher asks DD (AS) for assistance June 29; June 15 AS A Watch tasks for w.e. July 1; DD (AS) to EWT June 25 with notes on present and prospective levels of traffic handled by AS: DNMS to DMO June 16 re possible compromise of UK Sigint by US, DMO to DD (AS) June 27 confirming that HQ USAAF had in fact compromised Sigint by including Sigint met input from Met Office in a Confidential document, paper by DD (AS) June 30 recommending increased security measures to protect UK met Sigint, Manx security measures to be reinforced; Admiralty to DD 3 June 19 re SHAEF setting up own JIC; AW N... (expansion unknown) to R Cecil at HQ June 19 re draft letter to Loxley at FO on mission of cypher experts to watch over German comms after Armistice, DD 3, DD (CSA) and EWT consulted; GPS to DD 1 June 27 illustrating type of intelligence coming from GP comms since D-Day as case for maintaining GP cover; Jones to EWT June 27 on Hut 3 output and need for Sigint channel support, Winterbotham to Jones same subject June 28; Jones to DD (NS) June 28 re outstanding CX/MSS report; Jones to AM June 29 on expansion of Hut 3, DD 1 to Bicher at ETOUSA requesting US reinforcements for Hut 3; 21 AG listing of new DRLS schedules w.e.f June 23; Chicksands' cover return for w.e. June 17,24; report from Foynes Radio Eire for w.e. June 16; Sixta report on German W/T reaction to Allied invasion as at midday June 17; DD 1 to C June 30 with examples of technical reports on German landlines

Topics

Air Force

Conflict

Weapons

Ireland

Intelligence

Navy

Communications

Armed Forces (General Administration)

Operations, battles and campaigns