ICAO code for APX340?
Printed From: Avidyne
Category: Avidyne General
Forum Name: AXP340/322 ADS-B Transponder
Forum Description: Topics on the Avidyne AXP340/322 ADS-B Transponder
URL: https://avidynelive.com/forum_posts.asp?TID=1182
Printed Date: 26 Mar 2026 at 2:12pm
Software Version: Web Wiz Forums 12.07 - https://www.webwizforums.com
Topic: ICAO code for APX340?
Posted By: compasst
Subject: ICAO code for APX340?
Date Posted: 23 Nov 2016 at 4:52am
| What ICAO code is appropriate for the APX340? I do not (yet) have ADS-B IN (waiting for proposal from Avidyne and my dealer). |
Replies:
Posted By: compasst
Date Posted: 15 Feb 2017 at 2:08pm
| Could someone at Avidyne respond to this request? |
Posted By: oskrypuch
Date Posted: 15 Feb 2017 at 4:58pm
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AXP340 is just an ES Mode S transponder. B1 -- ADS-B with dedicated 1090 MHz ADS-B “out” capability * Orest |
Posted By: Ibraham
Date Posted: 15 Feb 2017 at 6:21pm
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You can find all the info here https://techsupport.avidyne.com/portal/helpcenter/articles/ifd540-ifd440-icao-filing-codes And if the AXP340 or AXP322 are thrown in, you pick up Surveillance: E – Mode S, including aircraft ID, pressure altitude, extended squitter B1 – ADS-B with dedicated 1090 MHz ADS-B Out Capability |
Posted By: 94S
Date Posted: 16 Feb 2017 at 9:02am
I am still trying to get my head around all these ICAO codes, but I think there should also be "SUR/260B" in item 18, per AIM 5-1-9,8(g). This indicates that the ES is 1090ES, which seems/is redundant to the B1 code. The requirement for this code is further supported by the document in the attached screenshot. See the second line of the table shown. This document is titled "op_approval_guidance.pdf". I don't recall for sure where I found it, but I think it was from the FAA's website. |
Posted By: jwjenks
Date Posted: 02 Mar 2017 at 6:51am
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How about if you have an AXP430 and MLB100 that transmits at 978MHz? Are you still a B1 or U1? If you tell the controller you are /G do you also tell them you are /B1? ------------- JWJ |
Posted By: Ibraham
Date Posted: 02 Mar 2017 at 7:30am
| MLB/Skytrax 100 does not transmit, it is ADS-B in receiver only. Only use the codes for the AXP340 for filing. |
Posted By: FlyingCOham
Date Posted: 02 Mar 2017 at 10:43am
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I inquired to the AOPA about the same question. They contacted the FAA and got the following advice. For a system that transmits 1090ES only and received on 978 (UAT) only: Quoted from he FAA advice) 1) File Code "B1" in IACO field 10b to indicate 1090 out, and include "SUR/260B" as indicated in AIM 5-1-9. 2) File code "U2" to indicate 978 (UAT) In. Do NOT file 282B in SUR/ since you don't have 978 out. Hope that helps, Jim ------------- Jim Patton |
Posted By: TomH
Date Posted: 02 Mar 2017 at 2:11pm
Jim, thank you. I file using ForeFlight so I'm unsure about where to "include SUR/260B" -- is there a field I'm missing?
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FlyingCOham wrote:Posted By: FlyingCOham
Date Posted: 02 Mar 2017 at 2:44pm
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I think you're going to have to call their support folks and ask how to do it. I hope you don't get the kind of reply I got from one of the other flight plan intermediaries that told me, "We've filed more IACO flight plans than anyone and we know more about it than anyone so just check the boxes and we'll take care of it." Obviously they couldn't "take care of it" because they didn't have the needed check boxes to corectly deliver the info they needed. (:<) ------------- Jim Patton |
Posted By: Ibraham
Date Posted: 02 Mar 2017 at 4:04pm
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Please refer to the FAA official publication, U2 is for UAT out and in, there is no code for UAT in only https://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/air_traffic_services/flight_plan_filing/media/FPL_Brochure_(change3).pdf ADS-B B1 1090 MHz out capability, or
B2 1090 MHz out and in capability U1 UAT out capability, or
U2 UAT out and in capability |
Posted By: Catani
Date Posted: 02 Mar 2017 at 4:34pm
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