9.1.1 The equipment should operate satisfactorily
in an unstabilized head-up mode.
9.1.2 The equipment should switch automatically
to the unstabilized head up mode within 1 minute after the azimuth
stabilization has become ineffective.
9.1.3 If automatic anti-clutter processing could
prevent the detection of targets in the absence of appropriate stabilization,
the processing should switch off automatically within 1 minute after
the azimuth stabilization has become ineffective.
9.1.4 An indication should be given that only
relative bearing measurements can be used.