Browse Items (397 total) Browse All Browse by Tag Search Items Collection: Hydra Previous Page Page of 20 Next Page Sort by: Title Creator Date Added 6th Trans Atlantic Telegraph Cable Circuit - Hydra Department of National Defence 06/22/1966 ACP 121 - Communication Instructions General Message Precedence Categories Department of National Defence 10/16/1963 Alerts Cypher System Department of National Defence 08/28/1959 Alerts Messages Department of National Defence Sep-1964 Army Protected Leased Circuit List - Issue 2 Amendment No 1 Department of National Defence 06/05/1964 Army Protected Leased Circuits Department of National Defence 03/14/1963 Cable extension for Comsec reconfiguration 705 Com Sqn Department of National Defence 11/06/1969 Calendar Chart 1960 Department of National Defence 01/11/1961 CAN-UK JCECS - US MCEB Methods and Procedures Panels Directive ACP 121 Communication Instructions - Message Precedence Categories Department of National Defence 01/10/1963 CD 330040 Department of National Defence 05/30/1963 Circuit Control System- CARP Department of National Defence 07/06/1965 Closure of Oshawa Transmitting Station Department of National Defence 01/30/1968 Communication Instructions Hydra Service Procedures (HSP 101) Department of National Defence 06/29/1965 Communications Department of National Defence 10/16/1959 Communications Department of National Defence 03/29/1960 Communications - Hydra Department of National Defence 01/29/1947 Communications - Queen's Visit to Canada Department of National Defence 05/01/1959 Communications Equipment - VHF/FM CFB Summerside Department of National Defence 02/01/1967 Composition of Army Frequency List Department of National Defence 12/17/1958 Comsec Reconfiguration - 705 Comm Sqn Department of National Defence 11/04/1969 Previous Page Page of 20 Next Page Output Formats atom, csv, dcmes-xml, json, omeka-xml, rss2