Avidyne IFD550 Pilot's Manual page 450

IFD500 Series Pilot Guide
GPS Log
This log contains miscellaneous internal GPS state data. It is a
diagnostics log for Avidyne Service Center technicians.
Configuration Log (Number of parameters in parenthesis
which are saved in the form of multiple text ".txt" files)
Local Unit Port Configurations (47)
GPS Antenna (x)
Dimming Settings (23)
Chart State – validity dates, identifier
(6)
User Options selections (33)
Map Setup settings (80)
System Time Since Power On (1)
Com Preset values (16)
GDL69 Settings (2)
VHF Nav Values (5)
OBS Cal Bias data (2)
Paid Options (11)
WiFi Settings (5)
7-72 General
Cross-side Port Configurations (47)
System Configuration – SW versions,
part numbers, chassis ID (145)
Aircraft Tail Number (1)
Datablock selections (32)
FMS Setup settings (38)
Map Declutter selections (58)
Frequency List values (80)
Com-Nav Audio States (21)
VHF Com Values (5)
Lightning Sensor Configuration (4)
Video Settings (16)
Radar Settings (6)