SV-XPNDR-261/262 Installation and Configuration
SkyView System Installation Guide - Revision AA 11-23
470). Select this option if the ADS-B IN equipment on board is dual-band
(receives on both 1090 MHz and 978 MHz).
AIRCRAFT CATEGORY: To assist ATC tracking of aircraft, an aircraft category can be
transmitted by Mode S transponders. Set as appropriate for your aircraft.
AIRCRAFT LENGTH and AIRCRAFT WIDTH: On the ground, ADS-B transmits encoded
aircraft size information which is used by ATC to identify taxiing routes and potential
conflicts. Using the aircraft length and width (wingspan), in your current
distance/speed units (meters or feet), the SV-XPNDR-26 will calculate the
appropriate size code for transmission.
MAXIMUM CRUISE SPEED: Mode S transponders can transmit their maximum
airspeed characteristics to aircraft equipped with TCAS. This information is used to
help identify threats and to plan avoiding action by the TCAS equipped aircraft. The
airspeeds are grouped in ranges. Set as appropriate for your aircraft.
TIS TRAFFIC: Enables the display of TIS traffic on the SkyView Map page when in an
area served by a TIS-enabled RADAR. Note that TIS is a Mode S uplink service that is
provided by some US approach RADARs. TIS coverage is limited to the coverage
areas of those radars; there is no TIS provision outside the USA. If another traffic
device is connected to SkyView and is set up correctly, its traffic information will
trump the TIS traffic from the SV-XPNDR-261/262, regardless of this setting.
(US only) Configuration required for SDA/SIL=1 for continued reception of ADS-
B Traffic (early 2016)
The following is applicable only to US aircraft equipped with a SkyView system equipped with:
SV-GPS-250 (but not an SV-GPS-2020)
No high integrity GPS position source connected to the SV-XPNDR-261/262
SV-XPNDR-261/262
SV-ADSB-470
Prior to 2016, for aircraft equipped to receive ADS-B In (for SkyView, an SV-ADSB-470 is
installed), if an aircraft transmits SIL/SDA=0 (or higher level of SIL/SDA), the ADS-B system will
transmit TIS-B (ADS-B traffic) to the aircraft so that an aircraft can display “ADS-B traffic”
specific to that aircraft.
SIL/SDA (System Integrity Level / System Design Assurance) is a measure of the inherent
integrity of the GPS data generated by the GPS unit.
As of early 2016, if an aircraft transmits SIL/SDA=0, the ADS-B system will not transmit TIS-B
(ADS-B traffic) to the aircraft. Thus an aircraft will not (new installations) or no longer (be able
to display “ADS-B traffic” specific to that aircraft.
Prior to SkyView Software v14.0 (released January, 2016), SkyView systems equipped with an
SV-GPS-250 could transmit only SIL/SDA=0. A feature of SkyView Software v14.0 and later
allows a SkyView system equipped with an SV-GPS-250 to transmit either SIL/SDA=0 or
To Next Page
Loading...
