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.
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…
IFD Interfaced with AXP340 Transponder
IFD Interfaced with AXP340 Transponder RS232 Config Page
AXP340 - Angel Flight and Animal Rescue
Changing your call sign on the AXP340 for an Angel Flight or Animal Rescue is found in the AXP340 Pilot Guide. The Pilot Guide is found at always refer to the latest pilot guide, as this is for reference only. Once done with your flight, the call sign of the AXP340 must be changed back to the tail designation.
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…
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…
Skytrax200 - general info
Aircraft with the older NavWorx MLB100, Skytrax100: These units are no longer repaired. Avidyne's current shipping product is the Skytrax200; a new purchase is required, there are no trade-ins or upgrades. Antenna requirements for the Skytrax200 (ST200), as of 2021: Pilots adding the ST200 must ensure they …
Avidyne AXP340 Output Power Low message
Information only, refer to the AXP340 Pilot Guide for all updates to this topic. If the AXP340 is displaying the Output Power Low message, have an approved Service Center check the connection at the transponder tray and transmitter cabling.
