I made a post recently about how the TCH in MSFS is consistently too high due to a problem with the G/S signal. I wondered what data Navigraph use for the G/S elevation? Is it the height of the antenna, or the field elevation at the location of the G/S antenna? If it’s the former, then this could explain why the G/S is consistently high in the final stages of approach; the G/S fly up/down signals aren’t centred at the very top of the antenna, more like 1/2 down.
Hi,
No, according to the internal valid ARINC424 specification, it´s the GS antenna elevation in feet. There are no information about the antenna height in the ARINC424 database.
Cheers,
Richard