Joint Task Farce SEVEN Task Greup 7.3 Washington 25, D.C. OperctionPlan 7 December 1953, 1200K CTS 7.3 No, 1-53 ANNEX F COMMUNIC..TIONS 1. General, This annex supplements Annex L nf CJTF SEVEN OpPlan 3-53, USF 70(B) and JANAP 195(C). This Cemmunication Plan is effective upen receipt fer training and planning purposes and is fully effective upen reporting to CTG 7,3 for sperational control. 2. 200, BASIC COMUNICATICN PLAN a. USF 70(B) is the Basic Cammnication Plan and JANAP 195(C) is the basic Frequency Plan for the U.S. Naval Service, Numbered articles in this plan constitute modification or amplification te similarly num~ bered articles of USF 70(B). Chapters and articles of USF 70(3) not modified ar amplified herein are to be comsidered effective and are to form en integral nart of these instructicns,. be CommunicationRensarsals, Communication rehears:ls will be conducted in preparatian fw shots. 411 circuits will be activated simultaneously te detect interference and to test satisfactory eperaticn. CJTF SEVEN and CTG 7.3 will issue rehearsal instructions. ce Comrunication Readiness, Since the success cf the entire operation depends upon reliable rapid commmications, it is mest impertant that all ships and units achieve and maintain the highest possible state of communications readiness, both in materiel and operation. Maxinum practicable training of personnel, especially in the use of CASTI£ ecuipment, should be accomplished prior to reporting. d. Communication OrerationInstructions(COI's). Numbered Cormuni- cation Operation Instructions (CCI's) are published ty CJT¥ SEVEN as necessary, and will he distributed te TG 7.3 units ty CiG 7.3, CCI's will take precedence over any cmflicting instructinns cmmt.ined herein. es Fromulgation ofthis Plan. Sufficient copies of this comzuni- eation plan will be made avzilable to exch unit to permit placing one or more copies in each cormmication space where adequate security is available, Supervisory personnel mst be thoreughly familiar with the plan. Comments and recormendations fer improvement af the plan are in~ vited. 3. 229. Class "E" Messages. The Class "2" message privelege is extended to Army, air Force, and ASC civilian personnel embarked. am _. _ Corea Pel