Dynon SkyView HDX - Page 195

SV-XPNDR-261 Transponder Installation and Configuration
SkyView HDX System Installation Manual - Revision E 12-19
o The website http://www.airframes.org provides HEX CODEs for most
countries’ aircraft that can be input into SkyView. The HEX CODE is the
value shown in the ICA024 result field.
o If you only have the octal number, you must convert it to hexadecimal. There
is an Octal to Hexadecimal converter tool available in the Support section
of http://www.trig-avionics.com/.
• VFR CODE: When the pilot presses the VFR button, a pre-programmed code
will replace the current squawk code. The pre-programmed code is set here;
the choice of code will depend on the normal location of the aircraft.
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 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 per the above instructions. When this option is
selected, the SV-XPNDR-261 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 per the above instructions. When this option is
selected, the SV-XPNDR-261 will consider the aircraft to in flight when this
switch is low (electrically grounded).
o AUTOMATIC (AIR DATA): The SV-XPNDR-261 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 Software 2.02 or above. See SV-XPNDR-261 Software
Updates below for more information about updating the SV-XPNDR-261
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-472/472 is installed and configured under SETUP MENU >
SYSTEM SETUP > SERIAL PORT SETUP, this option will be unavailable:
The SV-ADSB-472/472 automatically receives ADS-B In traffic and weather
via the 978 MHz UAT frequency band. The SV-ADSB-472 also uses the 1090
MHz band to receive traffic.
Note that the options in the ADS-B IN FREQUENCY only have an effect with
SV-XPNDR-261 Software 2.02 or above. See SV-XPNDR-261 Software
Updates below for more information about updating the SV-XPNDR-261
Software.