Figures Shift - Philips AROFLEX CRYPTO EQUIPMEN UA8116 Series Operating Instructions Manual

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32
RESTRICTED
Character inserted instead of
space between groups:
Double space between groups:
AROFLEX stores 5 characters of
the first group and rejects the sixth.
Insert a space and re-start the tape
reader; the output will be correct.
AROFLEX automatically rejects
one space. Re-start the tape reader;
the output will be correct.
In the DIRECT deciphering mode, format faults light the CORR lamp
but do not stop the input. The synchronisation program ensures that
cryptosynchrony is regained sooner or later. Characters inserted instead
of spaces between groups have no effect on cryptosynchrony in this
mode.
4.9 Figures shift
Corruption of a crypto character to a Figures shift should be corrected
as follows :
1. Select PLAIN mode and print out the corrupted tape, marking the
point at which the corruption occurred.
2. Copy the corrupted tape, deleting the Figures shift and substituting
a character.
3. Decipher the copy tape in the INDIRECT DECI mode.
NOTE
The "Who Are You ?" code (Figures D) is not transferred to the copy
tape; consequently the copy tape will not contain any D's which were
present in the original crypto text after the corruption. Four-letter
groups should be corrected as described in paragraph 4.8, inserting
"D + space" from the keyboard.
RESTRICTED

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