Station X September 28, 1939
Dear Gordon,
For some time now, we have been intercepting new
traffic different from red, green, blue. The call
sign of the central station is always TGD. By direct
finding measures we think it is located near by
Berlin.
At the moment we do not know how to decipher it.
If you have ideas, they are welcome.
The message format is classic:
= XXX = KKKKK IIIII IMMMM MMMMM…
XXX:
Grundstellung
KKKKK: Kengruppe
IIIIII: Indicator
MMMM…: Message
Edward Wilfred Harry Travis
1) TGD ALE 1025
13TLE=1TL= 42 =RZW=
RGBTZ DYWFT IKNFM
MOQNF EXMIO
AIXYC VATAM VSNQV OZ
2) TGD ALE 1030
2TL= 36 =YGA=
RGBTZ OGWUN FSFTG
NAYLF OJNEL
LNQTK LVRLH D
3) TGD ALE 1035
3TL= 23 =XCV=
RGBTZ FYCET LJZMG
XGXXF KYN
4) TGD ALE 1040
4TL= 39 =ZEW=
RGBTZ PNNSX OBJCT
SXIJT HDBSP
AAXBS KXNNT GXPX
5) TGD ALE 1045
5TL= 43 =MBW=
RGBTZ KFLVC XPBQB
YDLZV BCHSO
ZYPFE YUXXQ ZMVFM
LBI
6) TGD ALE 1050
6TL= 50 =WRV=
RGBTZ KLJZB ITCFJ
ROEGX VETNF
BBOTZ WOGCP VTFKI
DINKN RRBIG
7) TGD ALE 1055
7TL= 35 =UQL=
RGBTZ DOQLI MLIER
VCWCZ ILZAO
CHBFW ATLCW
8) TGD ALE 1100
8TL= 29 =WGM=
RGBTZ YVVGB WGECI
CNRHZ NRTJY
SRKG
9) TGD ALE 1105
9TL= 32 =VVJ=
RGBTZ KGDJZ LOASQ
RCJJC RYCHD
EYDJO WD
10) TGD ALE 1110
10TL= 25 =TUT=
RGBTZ CEKNI WELTU
FNLQC TJDTQ
11) TGD ALE 1115 11TL= 39 =HZG=
RGBTZ ZEEDC FFPKY CTSTK ZNZZH
JTLXP ZVWUG APAB
12) TGD ALE 1120 12TL= 33 =VOM=
RGBTZ METRE GNFCB JLYOA PEDYS
DEPPI FTF
13) TGD ALE 1125 13TL= 38 =OKW=
RGBTZ XDPXR BGRWU TCZIA PRAKO
MMYCZ CVWIA TBE