A PAE ISR Resolute Eagle UAS, equipped with a Sagetech XPC-TR-50 Mode C transponder
, successfully completed a mission in civil airspace on November 8, 2017.
For UAT systems installed along with Mode C or Mode S transponders, the codes are CU1 (Mode C transponder with UAT ADS-B Out), CU2 (Mode C with UAT ADS-B Out and In), SU1 (Mode S transponder with ADS-B Out) and SU2 (Mode S transponder with UAT ADS-B Out and In).
COMMON SURVEILLANCE CODES EQUIPMENT CODE Mode A Transponder A Mode C Transponder C Mode STransponder w/ press, alt., aircraft ID s Extended Squitter ADS-B Transponder E COMMON EQUIPMENT CODES EQUIPMENT CODE DME D ADF F GNSS/GPS G VHF Comm, VOR, ILS S 8.33 VHF Comm Transceiver Y VOR Receiver 0 GPS WAAS LPV Approach B Other equipment Z COMMON ADS-B CODES EQUIPMENT CODE 1090 "Out" B1 1090 "Out" and "In" B2 UAT "Out" U1 UAT"Out"and"ln" U2 Caption: Adding equipment codes to the aircraft panel ID placard isn't a bad idea for on-the-fly reference.
You have less than four years until the January 1, 2020, mandate to have a working ADS-B Out system installed if you want regular access to airspace where a Mode C transponder
currently is required.
If an aircraft has a mode C transponder
as back-up, and its primary mode S transponder fails, then TCAS will provide warnings of impending collisions but will not be able to execute joint collision avoidance maneuvers.
Sagetech Corporation has shown that a PAE ISR Resolute Eagle UAS, equipped with a Sagetech XPC-TR-50 Mode C transponder
, can complete a mission in civil airspace, the company said.
2020, ADS-B Out deadline and associated installation costs ignores that the equipment only will be required essentially where a Mode C transponder
is required now: Class A, B and C airspace, plus at and above 10,000 feet msl.
Sandia actually labels the STX360 and STX180 products UAT ADS-B receivers, which happen to have a built-in Mode C transponder
. The internal UAT ADS-B receivers enables reception of both 978 MHz traffic targets and FIS-B METAR weather data, which are displayed on the unit's OLED screen.
airspace where the FARs now require a working Mode C transponder
. The FAA rule mandating ADS-B in 2020 went into effect in 2010, so there's little argument that operators haven't had enough warning about it, and it's not likely the FAA will change the deadline.
The table below summarizes the FAR's requirements, which basically substitute ADS-B OUT where a Mode C transponder
is required now.
On that date, operators will need ADS-B OUT to operate in airspace where a Mode C transponder
is presently required.