SkyView Display Installation and Configuration
4-26 SkyView System Installation Guide - Revision AA
There must be a SkyView ADAHRS installed for the altitude encoder output to
function.
SkyView outputs its altitude measurements in two different formats. You can use either format
on any of the serial ports. These formats are described in Table 13 and Table 14. SkyView will
function properly whether or not this altitude encoder functionality is used.
Garmin GTX330/ES (Garmin serial port must be set to Icarus input),
Garmin GTX327 (Garmin serial port must be set to Icarus input),
Garmin GTX328 (Garmin serial port must be set to Icarus input),
Icarus,
Trimble
ALT, space, five altitude bytes, carriage return
Dynon Avionics Encoder Serial-to-Parallel Converter,
Garmin AT (formerly UPS Aviation Technologies)
Garmin SL70 (same unit as Garmin AT)
#AL, space, +/-sign, five altitude bytes, T+25, checksum, carriage return
Table 14 – Dynon Avionics Serial-to-Gray Code Converter Format
Per ATC/FAA requirements, SkyView’s serial encoder output reports pressure altitude, which,
by definition, is indicated altitude when the baro is set to 29.92. Thus, when you set SkyView’s
baro adjustment to 29.92, its indicated altitude will match the altitude that is being reported to
your transponder.
Non-Dynon Avionics Transponder Serial Input Installation
SkyView can display the status of the Garmin GTX 327 and Garmin GTX 330 / 330ES
transponders. To use this functionality with SkyView:
Wire a serial receive line to the respective transmit line on the transponder. If you have
more than one SkyView display, make the same connection to all SkyView displays.
Ensure there is a shared ground between the SkyView display and the transponder. If you
have more than one SkyView display, make the same connection to all SkyView displays.
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