https://declassified.library.utoronto.ca/files/original/5865c3ce28f49b80e2f8e3df294a9ff1.pdf f18583997022c126862e00069b6e7125 PDF Text Text Document disclosed under the Access to Information Act - G FOR C O M M C E N / S I G N A L S • r ¥ II R M Document divulgue en vertu de la Loi sur I'acces a /'information USE y • P R E C E D E N C E - ACTION P R E C E D E N C E - INFO MESSAGE DATE -TIME C R O U P 2 7 /ft 2 r DEFERRED INSTRUCTIONS ftJKil FROM GR SECURITY TO CLASSIFICATION mmm mm mmm mmm :-C*ViORIGINATOR'S INFO mmm mm n LT COL tmm ft'-cr n$ s » less *nc 6& i. FOE CAFT 2. SS8ARDXJB TRIPASTIT8 ALERTS CSIAJBStt KtHST ABLE a m i OS D MM NUMBER €T A W © AND ODISmSC* UJKf IGft OTTAWA TERWMt JBtLdfliD LOCAL BESS* i ll'al'lllf 3* MBMJBIS} HKJKBBJ S B StTKSARIRE CARLE CIRCUIT RSBIBf BSLAX Q| 0O( taaraBtfnu m s ai3 BEK* USE TO ummutm momsmm m t&mak j i JAFFABB Wm WILL I M I FXBUOS AT OSS S8D IB I3XA3U3K&& RATSS Visj etMDaN oomnxGATicaB CQHEAOT, US ARE FBOUSBI &mi T H S NEBS I I,. RSGASDBB mRSAfUKTlC RABID MOOW&BATH*. KB ALSO &SCBSS& ! HUB WITH AB8ERAL ASgtK&S BOSH& HIS VISIT. &ELAI Of Hf MHX IBS 10 ! mmm* or mm KBA PAGE OF BOB AHD ^ S A S T - - : - YES D I INN O O OPERATOR R DND 9 0 5 7530-21-562-1 557 BBBB ma ALX. FACTORS COVRBB; OFFICE AFTER'S NAME TEL. PAGES CLASSIFIED FOR OPR'S USE m msm ie D D ••, ,. r ' - i f ' i " TIME SYSTEM \'r OPERATOR 2-7ST7 OF RELEASING OFFICER'S S1GNATUR IGNATURE m. ••..•h***l,n\e**» ««**nfr COPY 4 • 000092 � Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Hydra Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context HY00269 Title A name given to the resource [Alerts Arrangements] Date A point or period of time associated with an event in the lifecycle of the resource 07/22/1965 Source A related resource from which the described resource is derived Fixed Communications - Hydra Telegraph Relay System - Relocation of Hydra - Plans and Policy, RG24, S-2723-2, Vol. 1, Library and Archives Canada (LAC) Creator An entity primarily responsible for making the resource Department of National Defence Rights Information about rights held in and over the resource Canadian Crown Subject The topic of the resource Emergency planning, Emergency communications, EASE, STRAD, Tripartite Alerts, encryption, GSPS, radio communications, transatlantic cables Description An account of the resource Telegram from W.H. Finch to Captain Hodges, Government Signal Planning Staff pertaining to Alerts circuit conversion from circuit patch arrangement to full-period online cipher arrangement. Finch informs Hodges provisions of ALVIS unit and conference facilities to be determined at July 28 meeting. Finch apologizes for lack of updates on MOD/GCHQ and CFHQ/CBNRC submarine cable connection and radio rationalization. Publisher An entity responsible for making the resource available Canada Declassified Type The nature or genre of the resource Text Format The file format, physical medium, or dimensions of the resource PDF Language A language of the resource en