Issue course guidance and inform the aircraft when it is on glidepath and on course, and frequently inform the
aircraft of any deviation from glidepath or course. Transmissions with aircraft on precision final approach should
occur approximately every 5 seconds.
PHRASEOLOGY
HEADING (heading). ON GLIDEPATH. ON COURSE,
or
SLIGHTLY/WELL ABOVE/BELOW GLIDEPATH.
SLIGHTLY/WELL LEFT/RIGHT OF COURSE.
NOTE: Controllers should not key the radio transmitter continuously during radar approaches to
preclude a lengthy communications block. The decision on how often transmitters are unkeyed is the controller's
prerogative.
Issue trend information as required, to indicate target position with respect to the azimuth and elevation
cursors and to describe target movement as appropriate corrections are issued. Trend information may be modified
by the terms “RAPIDLY” or “SLOWLY,” as appropriate.
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