Excerpt of the Radio Log "U 763"
 
Patrol of "U 763" from 14 December 1943 to 7 February 44.
  
     
  Radio Messages meant for U 763.  
  December 1943  
 
14. 1315/92
Security frequency "nb"
    5.U-Flottilla:  Escort caught up at Point Rot 21.  Has taken us in convoy.  If no other orders will carry out frequency change at 15.00 hours.
                                                                             - Basse -
     
1453/22/90 Coastal To Cordes:  1.)  Own air sighted a convoy of 40 troop transports with escort and probably an aircraft carrier at 10.45 hours in naval square AE 9330
  2.)  At 23 December at 08.00 hours switch to "Ireland" Circuit.
   
1925/22/94 Coastal To Cordes:  If position favorable, operate on reported convoy and report position.
   
1552/24/198 Ireland Cordes give passing report on entering square Green NV.
   
2235/25/121   To Cordes:  New objective is square Green EW 61.
   
1903/28/175   1.)  Cordes, Purkhold, Mahrholz, Keiler join Group Rügen.
1911/28/176   2.)  Group Rügen after surfacing occupy the following patrol lines at economical speed:
  Group I . . . . ,  Group II  . . . . , Group III with Cordes, Heinrich, Geissler from square 3531 to 3594.
  Group IV to VII  . . . . , All square Green IV.
  3.  By day remain submerged, as often as possible go to periscope depth, on enemy sighting even by day operate energetically.  Only dive due to air danger.
   
1934/31/134   1.  Cordes, Heinrich and Mattke leave Group Rügen.
  2.  Named boats occupy the following areas and report there from daily normal Short Signal weather reports between 00.00 to 12.00 hours.  Cordes upper half of square Green MN 36.  Heinrich the area the points square Green MB 7141, 7263, 0177, 0299.  Mattke middle and right third of square Green RO 66.
  3.  First report on 1 January midday from the reached position
  4.  Purkhold occupy position from Mattke in Group "Rügen VI".  Geissler remain in position. 
   
January 1944    
1730/3/171   Cordes, Heinrich, Mattke.  Report 3 days before beginning return transit.
     
1533/7/133   To Cordes:  The aircraft repelled by belonged to a convoy or warship formation according to B-Dienst reports.  Therefore suspect the sounds heard were from escort vessels and not from sound buoys.
 
     
 
 
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Continuation of incoming Radio Messages for U 763:
January 1944.    
1219/15/184   On 16 January switch:  Heinrich, Cordes, Lauterbach, Rahe, Purkhold:  "America I"; Buchholz, Marbach: "America II".
   
0837/17/250 America I Today add to midday Short Signal weather report air pressure in clear text.
   
1838/19/290   1.  Cordes tonight report anticipated return transit date.
  2.  Switch on 20 January at 08.00 hours Pauckstadt America I, Purkhold Ireland.
   
1212/23/239   Krankenhagen  1.  . . . . . . . .  2.  . . . . . . . .
  3.  Boat relieves Cordes who begins return transit 26 January.
   
15.49/23/244   Cordes and Hashagen today between 16.00 and 18.00 hours send an additional weather report.
   
17.50/28/206   1.  . . . . . . . .
  2.  On 28 January at 08.00 hours switch:  Lange "America I", Cordes "Ireland", Heinrich "Coastal Circuit.
   
2155/28/212/195   In Radio Message 1750 switching for Lange, Cordes and Heinrich means 29 January at 08.00 hours.  Again switched from Ireland Circuit.
   
February 1944    
1102/1/145 Ireland Return harbors for Kluth and Cordes is Pallice for Jaschke Nazaire.
     
1738/1/148   Cordes on 2 February 08.00 hours switch to Coastal Circuit.
     
1348/5/97 Coastal U-763 escort positioned on 7 February at 08.00 hours Point "Pumpe".  Radio Beacon Group 3 runs on 5 February from 20.00 hours to 6 February at 09.00 hours and from 20.00 hours to 7 February at 09.00 hours.
                                                                     3. U.-Flottille.
     
     
     
     
     
     
     
On board 7.2.44.                                    
                                          Kptltn. and Kommandant
     
     
     
     
     
     
 
     
     
     
 
 
 
Excerpt of the Radio Log of "U 763"
  
 
Patrol of "U 763" from 14 December 1943 to 7 February 44.
  
     
  Outgoing Radio Messages, Short Signals and Short Signal weather reports.  
 
26.12.43                   Coastal
2337/26/73/150 Short Signal My position is AL 3165.                     - U 763 -
     
07.01.44                   America I
0040/7/458/132 Radio Msg. Naxos detection, repelled approaching "Lerwick" with brilliant searchlight naval square AK 2113.  After diving in GHG strong, varying propeller sounds.  Suspect noise buoy.  75 cbm.  All torpedoes.  No very low frequency reception submerged.  No steamer traffic.
                                                                - Cordes -
     
08.01.44                   Ireland
2318/7/141 Radio Msg. Assumption by Leadership unlikely.  Light marker thrown.  Moved off, dove.  Heard sound band over entire scale at loud volume, the same on 3 January two-hour sound pursuit on the surface by day on sounds perfectly distinguished as propellers.  Despite very good visibility no enemy sighting, however unexplained volume increase over entire scale and same rhythm perceived in the entire boat.
                                                                - Cordes -
     
19.01.44                   America I
2306/19/291 Short Signal Begin return transit on the 26th of the current month.
2321/19/292                                                               - U 763 -
     
Served as Radio Repeater
10.01.44                   Ireland
2352/10/197 Short Signal My Short Signal from today (2307) is incorrectly confirmed, it must mean:
    Intend to begin return transit on 15 January.
                                                                - U 364 -
     
13.01.44                   Ireland
2314/12/128 Radio Msg. Spare Naxos in own use.  No more spare antennas.  151 cbm fuel oil.
                                                                - Mannesmann -
     
Otherwise in the period 1 January to 26 January Short Signal weather reports were sent of these 3 were not heard.
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
 
     
     
     
 
 
 
Continuation of outgoing Radio Messages from U 763
     
04.02.44                   Coastal
0825/4/75 Short Signal Was attacked by aircraft square BF 4888.
                                                                - U 763 -
     
05.02.44    
0140/5/87 Short Signal Was attacked by aircraft square BF 8136.
0215/5/88 Short Signal    "         "                "       square BF 8217.
0752/5/93 Short Signal Position 48 hours off meeting point with escort, request Radio Beacon Group 3.
2210/5/3 Short Signal Was attacked by aircraft square BF 8319.
                                                                - U 763 -
     
     
     
     
On board 7.2.44.                             
                                     Kptltn. and Kommandant