https://declassified.library.utoronto.ca/files/original/f78e780060ca3d478b075b77b56c0aa3.pdf a89e2dc6bd737a7bfb45712d323ee28a PDF Text Text Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information DEPARTMENT OF N A T I O N A L DEFENCE MINUTE SHEET REMARKS Referred to To be signed in full showing Appointment, Telephone Number & Date Sigb, <$*^PI^ -Oigo 5 (u This is the basic outline plan for HYDRA that we have prepared as the result of our meeting. If you agree, we will send it to D Sigs for approval in principle, I think that all other details, including the precedence matter, can be sorted out as the plan progresses. (./ Lt Col Sigs 2 iff JJLJ S76 M 000368 D N D 317 �n _ i j * * 5 Document disclosed under the Access to Information Act ' Document divulgue en vertu de la Loi sur I'acces a •*: ." »» I'information D Siga HYDRA Emergency Plan 1, There are no plana at the present time* to ensure the continued operation of the HYDRA system during an emergency or hostile operations* neither has there been any indication from the users that there would be a need for the continued operation of the aystem under such conditions* nevertheless, it is ray opinion that the HYDRA system should be protected if for no other rea&on than to ensure that its radio facilities are available to increase the number of radio circuits to the UK and thus increeee the probability of maintaining transAtlantic communications* 2* This has been disouaaed with Siga 3 and Sigs 5 and it haa been agreed that a plan could he based on the following considerations: a* Fall-out proofing of Oshawa Wireless Station* UV 'fhe transmitter and standby power buildings are constructed of cement block with ilass block windows* The roofs are reinforced concrete supported by metal bearaa* Air for cooling the transmitters is brought in from one air intake* The control room is separate and haa ita own ventilation system with a separate air intake* It would be a relatively easy matter to filter all air entering the building* Ths haeement is •/2 000369 �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information ^*v._k_e % e | V-L-* I _. 2 — large end could he made into emergency living quarters for the staff* The emergency poser supply capacity will handle the doraeetio requirements of the building and ell trenssiitters except the 100 Ktte It appears feasible to fall-out proof the building sad protect two transmitters to work to UK end one to work to Alert* b. Provide receiving facilities tor HYDRA in the) IUSS building* (J_W EASS plena include receiving antennae directed toward UK* It would be ne* ceaaary to increase the nasfcer ef amplifiers et the antenna to aeee»-sodete the BTDSA frequencies* Space would be required within BASE to lnetall three reeeivere for KYDRA* c* j wW>«/_^»«-^* ^ / Connect the HYDRA users so the automatic pouting equipment to be installed in KASK* (Jty Either of the systems being considered will have sufficient spare capacity to handle HYB8A requirements and will permit HYDRA to operate aa a. aeparate and j . A independent system*A The traffic procedure used en HYDRA puta the routing indicator in the same place in the preaefelc as the procedure used on the CASS and therefore the system weald recognise HYDRA routing indicators* CSWRC and USA who employ on-line cipher to OCR could he routed around the automatic eejadi^aBi : o • ••*•/ j 000370 t»" �, Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information 3 - 3 • (j_i It is likely that internal Affairs and other diplomatic users would he relocated in one of the valley towns. The planned line distribution haa sufficient spare capacity to ««««n«*»a**» ***». ,o accommodate then* A**^*-*" J^JV' d* Provide reliable keying circuits from EASK to Oshawa* [l^ The indications are that overhead line circuits In this area are not likely to suffer damage* However, further con- sideration may show a need to supplement this with a radio circuit such aa tropo scatter <g^! radio relay, ^^ 3* / "TYMip^^''^^' If you concur with this general outline plan we will continue with more detailed planning so that we can subsequently present it to the users, particularly CBlfRC and Rxtemal Affairs* SECRET 000371 � 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 HY00115 Title A name given to the resource Hydra Emergency Plan Date A point or period of time associated with an event in the lifecycle of the resource 04/28/1961 Source A related resource from which the described resource is derived Hydra Communications - Policy, RG24, 1250-36 Vol. 2, 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 Description An account of the resource Minute sheet and draft of Hydra emergency plan from W.E. Grant (Sigs 2) to Lt. Col W.H. Finch, D Sigs 3. Hydra emergency plan drafted as a result of a meeting between Sigs 2, Sigs 3 and Sigs 5. Plan devised is to fallout-proof Oshawa transmitting facility, and move Hydra control and receive facilities to EASE. CBNRC, NSA and GCHQ circuits could be routed around the automatic traffic system already installed at EASE. External Affairs traffic to continue to use Hydra system. 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