There can be 3 options for you to select in the box, depending on the make/options. Some of these are on different menus in the box, and not necessarily active globally.
'Hard 500' call option selection is for all approaches, with 'five hundred' announced once.
'Smart 500' call option selection is for non-precision approaches. 'five hundred' announced with other altitudes.
'500 above field' option selection. This call is based on GPS altitude, not rad alt.
Last edited by underfire; 6th Jun 2017 at 08:01.