Appendix B: Specifications
24-4 SkyView HDX System Installation Manual - Revision E
24.4 SV-XPNDR-261 Specifications
Table 53: SV-XPNDR-261 Specifications
ETSO 2C112b Class 1 Level 2els (see below),
ETSO C166a Class B0, TSO C112c Class 1
Level 2els (see below), TSO C166b Class B1S
Level 2 (Comm B) Level 1 + receive and transmit
112 Bit Messages Level 2A Same as Level 2
without the support air-initiated Comm B
messages
e – Extended squitter, the ability to send ADS-
B/1090ES data. This requires an external GPS
(certified GPS units only). Mode S transponders
with 1090ES capability can always send ADS-B
data out but may not be able to receive ADS-B
data in to receive traffic information. The actual
data out and data-in capabilities for each model
are shown out in the table above.
l – Elementary surveillance, i.e. basic position
reporting derived from SSR radar, enhanced in
the case of a Mode S environment with higher
resolution (25') pressure altitude, unique ICAO
aircraft ID and other Mode S capabilities. Note
that this is different than 1090ES/ADS-B data-out
capabilities.
S – Surveillance Identifier (SI) code. Used by
Mode S transponders and Mode S equipped SSR
to limit interrogations to specific transponders.
EUROCAE ED-73C, EUROCAE ED-14F (RTCA
DO-160F), RTCA DO-181D, RTCA DO-260B
ED-12B (RTCA DO-178B) Level B
11 – 33 Volts DC. Typical 6 Watts @ 14Volts.
95% @ +50°C for 6 hours; 85% @ +38°C for 16
hours.
Tested to Category A in DO-160F
250 Watts nominal; 125 Watts minimum at
antenna after allowing for 0.5dB connector losses
and 1.5dB cable losses.
Physical Specifications (in the mounting tray)
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