SV-XPNDR-261/262 Installation and Configuration
11-22 SkyView System Installation Guide - Revision AA
o In the USA, the VFR squawk code is 1200.
o In most parts of Europe, the VFR squawk code should be set to 7000.
AUTO ALT/GND: Allows the SV-XPNDR-261/262 to automatically switch between
Airborne and Ground modes. Available options include:
o NONE: Automatic switching disabled
o SQUAT SWITCH LOW ON GND: Utilizes a physical squat switch connected the
SV-XPNDR-261/262 per the above instructions. When this option is selected,
the SV-XPNDR-261/262 will consider the aircraft to be on the ground when
this switch is low (electrically grounded).
o SQUAT SWITCH LOW IN AIR: Utilizes a physical squat switch connected the
SV-XPNDR-261/262 per the above instructions. When this option is selected,
the SV-XPNDR-261/262 will consider the aircraft to in flight when this switch
is low (electrically grounded).
o AUTOMATIC (AIR DATA): The SV-XPNDR-261/262 automatically determines
whether the aircraft is in flight or not by using a combination of GPS and air
data changes from SkyView. Note that this option only works with SV-
XPNDR-261/262 Software 2.02 or above. See SV-XPNDR-261/262 Software
Updates below for more information about updating the SV-XPNDR-261/262
Software. This is the option that most SkyView systems should use unless
they are required to use a Squat Switch. If a Squat Switch is installed and
connected, this option will cause the Squat Switch to be ignored.
ADS-B IN FREQUENCY:
If an SV-ADSB-470 is installed and configured under SETUP MENU > SYSTEM SETUP
> SERIAL PORT SETUP, this option will be unavailable: The SV-ADSB-470
automatically receives ADS-B In traffic and weather via the 978 MHz UAT
frequency band.
If an SV-ADSB-470 is not installed and configured, the following settings are
accessible:
o NONE – Set to NONE if there is no ADS-B IN equipment on board the
aircraft.
o 1090 MHz ES – Select this option if there is ADS-B IN equipment on board
that receives only on 1090 MHz.
o 978 MHz UAT – Select this option if there is ADS-B IN equipment on
board that receives on 978 MHz (other than the Dynon Avionics SV-ADSB-
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