MIL-HDBK-162A
Volume 1
15 December 1965
Section 3
DATE: 1 July 1964
ITEM NAME: DIRECTION DATA CONVERTER
COGNIZANT SERVICE: USN
TYPE: PU-155/SP, PU-155(XN-1)/SP,
PU-155A/SP, PU-155B/SP
FEDERAL STOCK NUMBER: See Note 1
USA
USN
USAF
USMC
STATUS OR TYPE CLASSIFICATION
Mfg(s) Name or Code Number: See Note 2
step-by-step position data and a radar repeater which
FUNCTIONAL DESCRIPTION
has a synchro-controlled provision for offsetting the
origin of a PPI display. The dead reckoning analyzer
The PU-155/SP, PU-155(XN-1)/SP, PU-155A/SP
supplies two step-by-step signals which represent
and PU-155B/SP are electromechanical devices to
respectively the north-south and east-west components
convert step-by-step position signals into corresponding
of ship's movement.
synchro signals. It is used as an intermediate unit
between a Dead Reckoning Analyzer which supplies
PU-155/SP: 1
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