User guide

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TO FROM
ILS Navigation Display
Runway Heading
Localizer CDI Glide Slope VDI
ILS Frequency AP/FD Mode
You should always set the ILS inbound Approach Course using the CRS knob selection.
If the Nav Radio is tuned to an ILS frequency you should use the CRS setting to select the inbound approach
course.
NOTE: The SL-30 will not let you adjust the OBS if you have selected an ILS freq and you must use the CRS knob
on the EFIS to set the course indicator.
The course indicator is fixed to the rotation of the DG. The Green course indicator will only be displayed if you are
tuned to a VOR or a localizer.
LOC
If the radio is tuned to a standard ILS frequency and is giving a valid indication the display will show LOC in green
letters. If the radio does not have a valid localizer indication the display will show LOC and it should not be used for
navigation.
GS
If the nav radio has a valid glide slope indication the display will show GS in green letters. If the radio does not have a
valid glide slope flag it will display GS in red and it should not be used for navigation.
BC
If the nav radio is tuned to a localizer and is in back course mode BC will be displayed in green.
NOTE on Back-Course: If you are flying a back-course with an HSI and the SL-30 is NOT in back-course mode,
you should set the course selector “OBS” to the front course heading so no reversal will be needed since the CDI
indicator spins with the DG. If you have the SL-30 in back-course mode, you must set the course selector to the
heading of the back-course runway or the CDI needle will be reversed.