U.S. Airborne in Cotentin Peninsula



 
 
 
 
 
 
 

 


TOP SECRET - BIGOT NEPTUNE
THE SIGNAL ANNEX WILL BE DIVIDED INTO TWO PARTS:No. of Copies: 250
Copy No. 131
 
  1. Signal Annex No. 6A : Communications within the United Kingdom to Departure Airdromes.
  2. Signal Annex No. 6B: Communications on the Continent
 
ANNEX No. 6A TO FO NO. 1.

MAPS:     

FRANCE 1/50,000, GSGS 4250, SHEETS: LA HAYE DU PUITS (6 E/5), PERIERS (5 F/2 - 6 F/1), VALOGNES (6 E/3 - 6 E/4).
   
1.
  1. Enemy Situation - See Intelligence Annex No. 1.
  2. Friendly Situation - See Operations Annex No. 3.
2.
  1. PW telephone and PW teleprinter will be the primary means of communication within the United Kingdom supplemented by GPO facilities. See Appendices No. 1 and 2.
  2. Radio will be the supplementary means of communication - See Appendix No. 3
3.
  1. 101st Airborne Signal Company:
     
    (1)Message Center.
    1. Message center at Greenham Lodge will operate continuously.
    2. SIGABA will be used for cryptographic communications withe Divisions and Higher Headquarters in the United Kingdom.
    3. The Converter M-209 will be used for cryptographic communications with Division Forward Echelon.
    4. Cipher Key List for the Converter M-209 of the 101st Airborne Division will be used for traffic with Forward Echelon of VII Corps to include assigned and attached elements thereof.
    5. Cipher Key List for the Converter M-209 of the IX Troop Carrier Command will be used for traffic with their Headquarters.
    6. Contact with Forward elements of First U.S. Army will be through the Army Signal Center - Plymouth and Portsmouth.
    (2)Messenger Communication.
    1. Special Mounted Messenger service will be maintained between Division Rear Echelon Headquarters and Departure Airfields.
    (3)Radio Communication.
    1. Station will operate in the IX Troop Carrier Command Net at 101st Airborne Division Headquarters in the United Kingdom - See Appendix No. 3 and IX Troop Carrier Command SOI.
    2. Station will operate in Division Rear Echelon Net at 101st Airborne Division Headquarters in the United Kingdom - See Appendix No. 3.
    (4)TCC Communication.
    1. Switchboard will operate at Division Rear Echelon Headquarters.
      (1) One telephone line reserved from Operations Room at Division Rear Echelon Headquarters to Operations Room at IX Troop Carrier Command Advance Headquarters.
    2. One telephone line will be installed between the radio set, operating in the TCC Net, and the Division Rear Echelon Message Center.
    3. One telephone line will be installed between the Division Rear Echelon Radio Set and the Division Rear Echelon Message Center.
    4. Telephone Directory - See Appendix No. 2.
    5. Traffic Diagram - See Appendix No. 1.
    6. Priority of calls - To be announced
x.(1) Message Center.
  1. Operational Messages for Rear Echelon Headquarters will be delivered to the office of the Chief of Staff.
  2. All resupply messages will be delivered to office of the Chief of Staff and will be phoned to 101st Airborne Division Liaison Officer at TCC Operations, EASTCOTE.
  3. Troop Carrier Command to deliver messages to Headquarters of Units bivouaced at Departure Airfields.
  4. 101st Airborne Division Units will provide runners between 101st Airborne Division Unit Headquarters and bivouac are. Rear echelon personnel will be utilized to insure continous operation.
(2) Wire Communication - See Appendices No. 1 and 2.
  1. Wire Communication from Departure Airdromes to Division Headquarters Rear Echelon will be maintened in continuous opreation
  2. Telephone extensions at Troop Carrier Airdrome of each Troop Carrier Wing will be numbered identically within Wings.
    1. Extension Numbers - See Appendix No. 1.
    2. Units will provide personnel to maintain continuous operation of telephone extensions assigned to the Unit at Departure Airfield.
4.
  1. Division Signal Supply and Division Signal Repair located at Donnington.
5.
  1. Signal Operations Instructions (Assault) Index No. 1 - 1 will be in effect at J-Hour.
  2. Signal Operations Instructions (Reference) Index No. 1 - 1 will be effective at 0001B, D plus 4.
   OFFICIAL:


MILLENER
G-3
 TAYLOR

APPENDICES:
 
  1 - TP and TWX Traffic Diagram.
2 - Telephone Directory
3 - Radio Net (TCC)
 
DISTRIBUTION:
     Same as for FO No. 1 + 50 copies Sig O

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