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|  MIL-N-85005A(AS)
(4) Omega -
shall provide a solution of receiver position
only, in Omega lines of position and in
latitude/longitude.
The Omega subsystem
shall provide the following features:
Signal Acquisition
(a)
Automatic
(b)
Automatic
Synchronization
Phase Correction
(c)
Automatic
(d)
Automatic
or Manual Station Selections
(e)
Automatic
Antenna Lobe Selection
3.4.2
Accuracy
3.4.2.1
Input Conditions - The specification of system accuracy
is based on the system inputs within the following limits:
3.4.2.1.1
System Inputs
True Heading (Inertial)
0.2 degrees initial heading error
0.02 degrees/hour heading drift rate
Magnetic Heading
0.5 degrees heading accuracy excluding uncompensated
flux valve errors.
True Airspeed
5 knots below 200 knots
3 knots above 200 knots
Doppler Ground Speed
0.35 knot
0.23% of true value
Doppler Drift Angle
0.23 degrees
Magnetic Variation
Known to 0.5 degrees
Altitude
30 feet 0.5% of aircraft altitude
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