BP Director's Order No 10 of Apr 17, translation of technical terms; Apr 28 EWT's...

BP Director's Order No 10 of Apr 17, translation of technical terms; Apr 28 EWT's comments on War Cabinet Paper PHP (43) 37 (Final) of Apr 12, seizure of Sigint War material at time of German surrender; DD 1 to DMI Apr 16 thanking him for complimentary memo to Col Tiltman of Apr 13; DD (Y) to DD 1 Apr 20 requesting copy of GP radio network for Public Safety sub-section of SHAEF G-5 (Civil Affairs), DD 1's reply Apr 22; C to Col Sir A Stanley Angwin, Engineer in Chief GPO, Apr 21 requesting renewal of work by GPO on intercepting Berlin - Tokio picture transmissions, GPO service discontinued in 1940, Angwin replies Apr 24, GPO will receive and record at Baldock if BP obtains 2 receivers from US; EWT to WTC Apr 28, Lt Col Wallace to take over certain supervisory tasks for Knockholt, thus relieving Kenworthy; Milner-Barry to DD 1 Apr 30 re Alexander's case for and against attempting to capture an Umkehrwalze D, recent evidence strengthens case for capture; Air Cdr Easton to DD 3 Apr 20 replying to DD 3's suggestions for amendments to minutes of AM meeting of Apr 7; DD 1 to MI-8 Apr 16 further to SHAEF Sigint Memo No 6, draft document on organisation of Pearl and Thumb intelligence for SHAEF, continued insistance on independent UK processing at BP and US processing at Weymouth St, no joint operation as desired by USA, another memo on subject from Col Scott Apr 24, Col Bicher to DD (AS) on US/British co-operation on F traffic Apr 25, more correspondence Apr 28, new co-ordination post suggested, Lt Col Blair Cunnynghame designated as likely candidate, EWT to Gen Bissell in Washington asking for views before he attends meeting with Gen Whiteley and Col Bicher; WTC to CO RAF Dunstable Apr 16 on reception trials at Monks Risborough, more tasking; Jellyfish cover at Shaftesbury, operators to be sent from Knockholt Apr 17; results of F reception test at Chicksands, Capel, Forest Moor and Montrose Mar 30 - Apr 5; agenda for second Army Station Commanders' meeting at Beaumanor Apr 18, minutes of meeting, next meeting May 25 at Forest Moor; WTC tasking to Forest Moor Apr 18, Hut 6 to WTC turning down extra E sets at Forest Moor; WTC takes over collation of Y cover statistics Apr 20, WTC to Admiralty requesting all naval UK stations send cover returns to WTC vice Mr Williams at BP, agreed Apr 26; Sixta to WTC Apr 23 requesting more praise for Sigint operators who have done a good job; MI-8 to WTC Apr 23 on policy for visits to Y stations; CSO (SW) to WTC Apr 25 re comms to Forest Moor; WTC to CSO (SW) re minutes of 2nd Station Commanders' Conference of Apr 18; WTC to MI-8 Apr 26 on reducing station visits; WTC notes on Bishops Waltham Apr 26; Williams to Sayer Apr 17 on unsatisfactory state of Spanish military cover, Sayer to DD 1 who suggests task be taken on by AS; WTC to his senior staff Apr 27 on items 4-20 raised at an earlier meeting; Apr 27 results of reception test Apr 17 for Forest Moor comparing results with Chicksands, Harpendon and Whitchurch; Sayer to Wallace Apr 27 asking for weekly progress reports on US station at Bexley Heath, code-name Santa Fé; WTC asks Williams for weekly report of totals of German and Japanese diplomatic messages intercepted at FO stations and monthly totals of sets at FO stations on international tasks Apr 28; WTC to Dunstable praising work of Monks Risborough on newly assigned tasks Apr 28; WTC on weekly cover returns from home and abroad Apr 28; Lt Col Pritchard to DD 1 complaining about inefficiencies at Knockholt Apr 21, DD 1 takes up with Kenworthy who replies Apr 23; John de Grey's itinary Apr 30 for visits to UK Sigint stations during May, 16 to be visited, making 21 in all since Apr 22, de Grey's report on visits to first 5 Sigint stations Apr 22-26, to 2 RSS stations at Hanslope and Barnet plus Shenley, Harpendon and Sandridge; all GP cover at Beaumanor to transfer to Shenley Apr 28/29, transfer of 6 experienced operators to follow; CHO'D Alexander of Hut 8 to DD 3 complaining over traffic delays within BP Apr 21; Col Scott at SHAEF asks BP which German radio stations should be bombed in W Theatre and which should be preserved at all costs as providing vital Sigint Apr 23; Apr 25 Sixta to Hinsley of NS on German alert exercises; Winterbotham at HQ to Jones of Hut 3 Apr 25 re Hutment and Tentage, regulations for Army and SHAEF; Met Section weekly highlight reports for w.e Apr 16 and 23; DD (AS) to EWT Apr 27 re objections by Sir Nelson Johnson to release of Sigint met to US, suggests Johnson be invited to BP to fully discuss issue; Dr Mc'vittie's reply Apr 30 to DDMO's charge that Met Office was not getting what it required from BP work on enemy met cyphers; DD (AS) comments to DD 1 on BP's initial priorities and cover assessment update of Apr 13; further to minutes of meeting at AM Feb 13 on Kingsdown Sigint broadcast Apr 20, broadcast to go to 24 hour working from May 7, Wing Cdr Garrett of AS to Wing Cdr Budge West Kingsdown on Kingsdown - BP hook-up Apr 23, reply Apr 26; US 8th AF returns mis-directed AS report to BP Apr 23, reply from DD (AS) Apr 28; AS to Winterbotham at HQ Apr 23 re Sigint for ADGB; Apr 25 further amendments to minutes of meeting of Apr 7 at AM on reporting DOE between AS and stations; AS to AM Apr 28 on value of GAF fighter R/T intercepted by Flying Fortresses of US 8th AF during bombing missions; MI-8 to BP Apr 19 with copy of WO comparative chart of German Army frequencies and frequency bands of British Army receivers; new telephone extensions for 21 AG Apr 19; Chicksands' cover return for w.e. Apr 22; SHAEF Intelligence Directive No 15 on Sigint role of Chief of Sigint Section G2 SHAEF, Col Scott Apr 27, SHAEF British Army Intra-Service Sigint Instruction No BA 2 of Apr 27, transmission of Sigint between BP, 21 and 15 AGs, Ultra regulations for SHAEF Apr 27; EWT to Col O'Connor in Washington Apr 20 re security problems highlighted by Sir Nelson Johnson of unauthorised use of met Sigint by USAAF; DD 3 to New York Apr 26 re Abwehr cyphers and interrogation of German POW; Night Fighter Narrative for Apr 22 from West Kingsdown; DD 1 to C Apr 24 on forced landing near Larache of Spitfire flown by Australian Harold Ritman, to be passed to AM as coming from SIS source, follow up report of Apr 26, Ritman and all equipment to be handed over to English Consul-General in Tangier; Apr 24 GPS summary of 6 months of GPWI series reports; resumption of weekly reports from Foynes Radio, Eire, for w.e. Apr 21 and 28; AS report of Apr 28 that GAF was preparing to introduce a new hand cypher before Aug 1944

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