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OCR Page 1 of 2Headquarters 129th. F. A.
October 28th 1918.
Beginning October 25th, A T.S.F. post situated in the zone of
the 33rd French Army corps will forward METEOROLOGICAL MESSAGES
at the following hours-
2.45 - 6.45 - 10:45 - 14;45-18;45-22;45 -
The technical charactistics of this post are the following:
Cipher
M.G.SK B
wave length
410 meters
sound
Grave
Note- The messages will be transmitted in the customary form-
However, the 2nd Ciphered Groupe (for instance 931198) of the
message to the artillery must be translated in the following
cipher to indicate the air denistity 3--Height
above sea level, in hectomet'ers, for which the densit ty is
calculated. 1198==Weight in grams of a cubic meter of air at the
temperature and under the pressure indicated innthe first groupe.
By order of M jor General Traub.
Walter G Slagle.
lst. Lt. 129th. F. A.
C.S
and
recond
Regt'1 Radio Officer.
Terms
Subject
World War, 1914-1918
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