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Transponder Bi-Annual Test & Inspection 91.413 Suppression Buss
This article addresses the need to turn off all units connected to the Suppression Buss, [TAS/DME] while performing a Transponder Bi-Annual Test & Inspection, FAR 91.413 The Transponder under test will FAIL the performance specs observed on the Test Set due to its operation being suppressed by any system operating…
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Skytrax200 and AXP340 Antenna - info
Antenna requirements for the Skytrax200 (ST200), as of 2021: When adding the AXP340 and the Skytrax200: You must install a sperate antenna for the ST200. Avidyne does not recommend a Duplexer, as this would not block the output power from damaging the receiver input of the ST200.
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3.50 IFD interfaced with an AXP340 Transponder
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IFD5000i R-9.3.3 _ AXP-340 PNL XPDR, ADS-B OUT Reference Interconnect
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IFD Interfaced with AXP340 Transponder
IFD Interfaced with AXP340 Transponder RS232 Config Page
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AXP340 configuration when interfacing with IFD
ADSB Out Configurations IFD - RS232 out = ADSB(Avi) AXP340 * Squat Switch Source - (If using WOW (Weight on Wheels from IFD540) Pseudo WOW; Low when ground (This will transition @ 30knts GPS ground speed) * GPS Position Source - Trig ADS-B; when connected to IFD540/440 * GPS Line Speed - 9600Bps * System Certi…
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AXP340 Altitude Reporting Stuck At Field Elevation
This problem is likely the result of an altitude loop. Step 1 - Determine what kind of encoder is feeding altitude information to the AXP340. It can be either RS-232 or Gray Code. If it is Gray Code, we do not expect an altitude loop problem to be possible, and there is likely something else wrong with the airc…
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AMOC for FAA AD 2019-13-03 Avidyne AXP340 Transponders and BendixKing/Honeywell International KT74 Transponders
Alternative Means of Compliance for FAA AD 2019-13-03 Avidyne AXP340 Transponders and BendixKing/Honeywell International KT74 Transponders On August 27, 2019, the FAA issued AD 2019-13-03 advising of an unsafe condition of some Avidyne AXP340 transponders and BendixKing/Honeywell International KT74 transponders if…
