September
2017
Sentinel V SC and RT Operation Manual
Page 220
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
#EJ - Pitch Misalignment Angle
Purpose
Corrects for a physical pitch-like misalignment between the y-axis of the instrument and
the ship’s forward axis.
Format
#EJ±nnnnn
The #EJ command must be sent with the # sign.
Range
±nnnnn = -17999 to 18000 1/100ths of a degree
Default
#EJ0
Set as needed.
Description #EJ is a rotation about the ship's starboard axis. It is defined as the pitch of the ship when
the instrument is level.
For systems that are fixed in place on a moving vessel and that have an external pitch
source or an internal pitch source, use #EJ to set the amount of rotation that the instru-
ment’s y-axis is physically offset from the ship’s forward axis.
For systems that are stationary and have an internal compass, #EJ is typically set to zero
since the velocity data is referenced to either beam, instrument or geographic coordinates
instead of ship coordinates. However, a non-zero value may be used if ship attitude output
data is desired for other purposes.
