11th May, 1943                                          S E C R E T.                       1st. SUPPORT GROUP  
     
 
H/F D/F REPORT 5th. to 10th. MAY 1943.
     
          H.M.S. PELICAN and SENNEN are fitted with D/F set FH3 and auxiliary D/F receiver B28.  
   
  2.  No ground wave transmissions were received when not in company with ONS 5.  
     
  3.  0715/6n- ONS5 joined - watches as follows:  
 
H.M.S. TAY FH3
Series II
Line I
 
H.M.S. PELICAN FH3
II
2
  
  B28
II
1
  
H.M.S. SENNEN FH3
II
1
   Not in company, though
  B28
II
2
   bearings were received.
 
     
          HT 11 watch was set in accordance with C. in C.W.A's 599N.  
     
  4.  Transmissions on which any of the above ships reported a ground wave are shown below.
     
 
Date
Time
Series
Position
Bearing
Ship
ZR Report
6/5
0914
II/2
5145N
335
PELICAN
ZR10A5K
4517W
066
SENNEN
ZR10A    
 
  Remarks:  Divergent bearings.  
     
  5.  Bearings throughout 6/5 at 1235, 1350, 1405, 1428, 1448 and 1511 on Series II, Line 1 indicated that submarines were probably dropping astern until:   
     
  6.  As above:  
     
 
6/5
1701
2/1
5045N
001
PELICAN
ZR10A5K
1701
2/1
4527W
211 or 031
TAY
ZR10A      
 
  Remarks:  This gave a good fix at 001 6 miles from PELICAN who followed down the bearing at 1705.  No contact.  
 
6/5
1705
2/1
5045N
000
TAY
ZR10A  
1705
2/1
4527W
052
PELICAN
ZR1003Z
 
  Remarks:  Regarded as sky wave.  
     
  7.  NSHQ Ottawa's 061945Z "No W/T activity in your area since 1709/6.*  Little activity was heard up to 1200/8 when watch was changed to Series 1 and 8 in anticipation of joining ONS 6.  
     
  8.  Summary of bearings received by H.M.S. PELICAN and SENNEN between 5th. and 10th. May, 1943 in accordance with C.F.O. 1515/42 is appended.  
     
  *  Explanation of above code (employed in 1st. S.G. prior to EPC 89/43)  
 
  ZR H/F D/F Bearing
1) 5 German submarine transmitting a short signal - B
  10 German submarine transmitting a Naval Enigma message.
II) A First class bearing
  B Second class bearing              (5 degrees to any cause)
  C Third class bearing                 (10 degrees to any cause)
  D Approximate only
III) 1 to 5 Strength of signals (R)
IV) X Ground wave                         Operators opinion
  Y Sky wave
  Z Doubtful
 
     
     

 

 
 
     
                                                                   S E C R E T                                         Sheet 2.  
  H.M.S. PELICAN                      H/F D/F BEARINGS  5/5/43 to_________  
   
Date
Time
Freq.
Position
Type
Bearing
Class
Sense
Remarks
5/5 0426 5650 4719N         Fair signal.
      4909W B 023 3 Yes BB LXX CVII NJHX
5/5 7647 0530 4715N         Good strength.
      4852W NE 032 3 Yes 0605/5 20 SIOC PFJP
5/5 2235 5650 4953N          
      4544W B 350 3 Yes BB Fair signal.
5/5 2322 7647 5021N          
      4536W NE 002 3 Yes 2200/5 41 ZIIN JETY
6/5 0038 7647 5033N          
      4539W B 006 3 Yes BB WON IWGF KV
6/5 0048 7647 5033N         Weak signal.
      4539W B 001 3 Yes BB ORZ ECTA PCAT PTIB
6.5 0050 7647 5033N          
      4539W NE 007 3 Yes 0205/6 Weak signal.
6/5 0058 7647 5033N         Good strength.
      4539W B 016 2 Yes BB  EFJ HULG FIEB
6/5 0110 5650 5048N         Good strength.
      4536W NE 019 3 Yes Naval enigma
6/5 0148 7647 5048N         Poor signal.
      4536W B 021 4 Yes BB PAL QOQB VXNV YA
6/5 0201 7647 5102N         Good minima.
      4547W NE 020 2 Yes Naval enigma.
6/5 0242 7647 5102N          
      4547W NE 018 3 Yes Naval enigma.
6/5 0322 7647 5118N         Good minima.
      4541W NE 002 2 Yes 0510/6 29 OECI FHQL
6/5 0417 7647 5235N         Fair signal
      4520W NE 325 3 Yes 0607/6 37 XTBX SZDV
6/5 0424 7647 5135N         Fair signal.
      4502W NE 021 3 Yes 0610/6 34 CDZP MJMZ
6/5 0447 7647 5145N         Fair signal.
      4517W NE 023 3 Yes 0632/6 22 SSHD OSPR
6/5 0458 7647 5147N         Good strength.
      4517W NE 325 3 Yes 0645/6 21 QKLY HCCH
6/5 0512 7647 5145N         Good minima.
      4517W NE 338 2 Yes 0646/32 32 etc.
6/5 0549 5560 5145N          
      4517W   325 3 Yes Not identified.
6/5 0645 7812 5145N          
      4517W   353 2 Yes 4 letter code.
     
     

 

 
 
     
                                                                                                                                 Sheet 3.  
     
   
Date
Time
Freq.
Position
Type
Bearing
Class
Sense
Remarks
6/5 0014 10525 5145N         Good bearing.
      4517W NE 335 1 Yes 0910/6 47 etc.
6/5 1020 12215 5142N         Loud signal
      4520W NE 016 2 Yes 02--/6  etc.
6/5 1131 12215 5134N         Good strength
      4527W NE 024 2 Yes 1159/6  45 etc.
6/5 1220 12215 5128N   300     Weak signal
      4523W NE 120 4 No 1355/6 32 etc.
6/5 1235 12215 5127N         Fading signal
      4523W WW 050 3 Yes WW NZS  etc.
6/5 1350 12215 5119N   010      
      4528W   190 4 No Unidentified
6/5 1405 12215 5117N         Loud signal
      4528W WW 045 3 Yes WW KCTS YLGN
6/5 1409 10525 5117N          
      4528W NE 030 3 Yes --49/6 etc.
6/5 1420 10525 5116N          
      4531W NE 042 2 Yes Good bearing
6/5 1428 12215 5116N         Loud signal
      4531W NE 005 4 Yes 1600/6 35 K--T
6/5 1448 12215 5113N         Good bearing
      4531W NE 035 2 Yes 1550/6 28 JGCV
6/5 1511 12215 5111N         Good strength
      4532W NE 072 3 Yes 4 letter code
6/5 1701 12215 5045N         Ground wave
      4527W NE 001 1 Yes 1840/6 etc.
6/5 1705 12215 5045N         Fair strength
      4527W NE 052 3 Yes 1815/6 72 etc.
6/5 2218 7647 5003N         Good bearing
      4539W NE 034 2 Yes 1927/6 73 WJSQ
7/5 1507 10525 5004N   285     Fading signal
      4538W WW 105 4 No WW etc.
8/5 0119 7647 5222N         Fair strength
      4512W WW 080 4 Yes WW FFCX HGBI DUYB
8/5 0219 5650 5233N         Good strength
      4505W NE 119 3 Yes 0318/8 50 RQFB PHAB
8/5 0355 5650 5255N         Good strength
      4455W NE 093 3 Yes 0520/8 61 YOAA FWRG
9/5 1929 6672 5714N   090     Weak signal
      4248W NE 270 4 No 1902/9 etc.
     
     

 

 
 
     
     
Signals Intercepted on H/F (F.H.3) and M/F (Type F.M.7) Believed to be Transmitted by Enemy Units from May 5th to May 8th 1943
 
A.
B.
C.
D.
E.
F.
Date and Time of Intercept.
Frequency.
True Bearing.
Sense.
Ship's Position.
Remarks.
May 5th 1943.
0013.
5650.
079
Degrees
No.
47 20 N.
50 00 W.
0128/5 31 LSRR TOHJ
May 5th 1943.
0409.
5650.
015
do
No.
47 13 N.
48 44 W.
N.E.
May 5th 1943.
0424.
5650.
015
do
Yes
47 13 N.
48 44 W.
 0535/5
May 5th 1943.
2216.
7647.
009
do
Yes.
47 23 N.
50 38 W.
N.E.
May 5th 1943.
2250.
5650.
150
do
No.
47 21 N.
50 19 W.
B.B.
May 5th 1943.
2320.
7647.
013
do
No.
47 23 N.
50 19 W.
N.E.
May 6th 1943.
0051.
7647.
002
do
No.
50 40 N.
45 46 W.
N.E.
May 6th 1943.
0109.
5650.
025
do
No.
50 40 N.
45 46 W.
0110/6
May 6th 1943.
0204.
7647.
010
do
No.
50 55 N.
45 50 W.
N.E.
May 6th 1943.
0243.
7647.
019
do
No.
51 10 N.
45 53 W.
0427/6
May 6th 1943.
0332.
7647.
020
do
No.
51 14 N.
45 54 W.
0501/6 29 CECI FNQL
May 6th 1943.
0419.
7647.
009
do
No.
51 25 N.
45 58 W.
0607/6 37 XTBX SZDW
May 6th 1943.
0423.
7647.
032
do
No.
51 25 N.
45 58 W.
0610/6 34 CDZP IJMZ
May 6th 1943.
0445.
7647.
034
do
No.
51 33 N.
45 59 W.
0632/6 22 SSRD OSPR
May 6th 1943.
0457.
7647.
031
do
No.
51 40 N.
46 00 W.
N.E.
May 6th 1943.
0509.
7647.
025
do
No.
51 40 N.
46 00 W.
N.E.
May 6th 1943.
0512.
7647.
014
do
No.
51 42 N.
46 00 W.
0646/6 32 RUBT YFIA
May 6th 1943.
0548.
7812.
041
do
Yes.
51 57 N.
46 03 W.
0740/6
May 6th 1943.
0647.
7812.
037
do
Yes.
52 09 N.
46 07 W.
0835/6 18 BQOR VERM
May 6th 1943.
0724.
10525.
012
do
Yes.
52 12 N.
46 08 W.
0833/6 74 DSCW AAGA
May 6th 1943.
0914.
10525.
066
do
Yes.
52 40 N.
46 14 W.
0910/6 47 BAKK ROEN
May 6th 1943.
1020.
12215.
302
do
Yes.
52 25 N.
46 15 W.
0957/6 72 DLHF DBLB
May 6th 1943.
1131.
12215.
271
do
No.
52 30 N.
46 17 W.
N.E.
May 6th 1943.
1232.
10525.
202
do
No.
52 40 N.
46 18 W.
W.W.
May 6th 1943.
1449.
12215.
305
do
Yes.
52 50N.
46 33 W.
1550/6
May 6th 1943.
1701.
12215.
290
do
Yes.
52 45 N.
47 10 W.
1840/6
May 7th 1943.
0111.
5650.
068
do
Yes.
50 25 N.
47 27 W.
0103/7
May 7th 1943.
2253.
5650.
287
do
No.
50 25. N
46 57 W.
0017/8 36 AXUY DPDZ
May 8th 1943.
0220.
5650.
263
do
No.
45 05 N.
46 59 W.
0316/8 50 RQFB PHAB
May 8th 1943.
2247.
5650.
285
do
No.
47 37 N.
49 55 W.
W.W. UYAP TICM KMSF REZP