Dynon Avionics SkyView Pilots Users Guide - Manual (Page 89)

Transponder Operation
SkyView Pilot’s User Guide - Revision S 6-5
Refer to the SkyView System Installation Guide for information on connecting a TSO 146c GPS
directly to the SV-XPNDR-26X for this compliance.
Flight Plan Codes
ICAO Flight Plans
If your aircraft is equipped with a Dynon Mode-S transponder, a certified GPS navigator, and
that navigator is connected directly to the transponder to provide certified GPS position for
ADS-B Out functionality, the appropriate ICAO Surveillance Equipment Code is "EB1". The E
adds ADS-B credit, and the B1 indicates that you are 1090 OUT.
If you do not have a certified GPS navigator on board, but do have a Dynon Mode-S
transponder, the appropriate ICAO Surveillance Equipment Code is "S".
FAA Flight Plans
If your aircraft is equipped with a Dynon Mode-S transponder and an IFR certified GPS
navigator, you may file /G, which indicates that you have at least a Mode C transponder and
RNAV capability with GNSS (GPS).
If your aircraft does not have an IFR certified GPS navigator, but you do have a Dynon Mode-S
transponder, you should file /U to indicate you have at least a Mode C transponder.