SkyView HDX System Overview
2-6 SkyView HDX Pilot’s User Guide – Revision B
Engine Data Modules – SV-EMS-220 and SV-EMS-221
The engine gauges on your SkyView Engine Page are generated from the data acquired by the
SV-EMS-220 or SV-EMS-221 Engine Monitoring module and their connected sensors. These
modules support popular four and six-cylinder engine installations and can measure a variety of
engine and environmental parameters such as RPM, manifold pressure, oil temperature and
pressure, exhaust gas temperature (EGT), cylinder head temperature (CHT), fuel levels for
multiple tanks, voltage, current, fuel pressure, fuel flow, carburetor air temperature, coolant
pressure and temperature, flap and trim potentiometers, external contacts, and general
purpose temperature sensors.
Autopilot – Servos
Dynon Avionics SV32, SV42, and SV52 servos enable the operation of SkyView’s integrated
autopilot system. Refer to the SkyView Classic / SE / HDX System Installation Guide for more
information about Dynon Avionics autopilot servos. SkyView HDX can only control Dynon
Avionics servos.
Autopilot Control Panel – SV-AP-PANEL
The SV-AP-PANEL is an optional panel-mounted module that affords dedicated controls for the
SkyView AP’s Expert Mode. The SV-AP-PANEL includes dedicated buttons for engaging the
Flight Director, Autopilot, and all modes including setting up fully-coupled approaches, VNAV,
IAS Hold, and mode sequencing (provided that the necessary IFR navigation sources are
installed in the aircraft). It also has a LEVEL button to immediately return the aircraft to straight
and level flight.
Auto-trim
A secondary function of the SV-AP-PANEL is that it can control one or two electric trim control
motors (replaces a conventional “relay deck”). If this function is installed, the SkyView HDX
Autopilot, when engaged, can also provide automatic trim control – Auto-trim.
Transponders – SV-XPNDR-261 and SV-XPNDR-262
The SV-XPNDR-261 (Class 1) and SV-XPNDR-262 (Class 2) are TSO’d remote mounted Mode-S
transponder modules that, in addition to their transponder capability, contain ADS-B Out
capability via 1090 ES, and TIS traffic input capability (US Only). Note: Only the Class 1 SV-
XPNDR-261 meets the 2020 mandate for ADS-B Out.
ADS-B Receiver – SV-ADSB-470/472
The SV-ADSB-470 and SV-ADSB-472 receive traffic and weather information from the Automatic
Dependent Surveillance – Broadcast (ADS-B) system. ADS-B data allows integrated traffic and
NEXRAD weather data to be displayed on your SkyView HDX display. The SV-ADSB-470 is a 978
MHz (UAT Band) receiver, while the SV-ADSB-472 is a dual band 978 MHz/1090 MHz receiver.
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