ADF, not working

Using the template below will greatly help the team reproduce the issue and ease the process of fixing it. Before posting, search for an existing report. If you are not sure it’s a bug, please first report in User Support Hub.

3 tags are required - add them in the tag section next to the title above:

  • One for iteration ( msfs-2024)

  • One for platform ( steam)

  • aircraft: Asobo PA-28

ISSUE DESCRIPTION

Description of the issue: I tried to connect to 3 different NDB’s, No one worked. They do not show the ADF direction.

FREQUENCY OF ISSUE

all the time

REPRODUCTION STEPS

Please list clear steps you took in order to help our test team reproduce the same issue:

  1. NDB WTN frequency 337, on active window. Needle show 90 degrees did not move

  2. NDB TAN frequency 374, on active window. Needle show 90 degrees did not move.

  3. NDS SGA frequency 425, on active window. Needle show 90 degrees did not move, no ident.

YOUR SETTINGS

If the issue still occurs with no mods and add-ons

What peripherals are you using, if relevant:

[PC Only] Are you using Developer Mode or have you made any changes to it? NO

[PC Only] What GPU (Graphics Card) do you use? AMD 7900

[PC Only] What other relevant PC specs can you share? AMD Ryzen 7 9800X3D

MEDIA

That is the Cessna 185.

@stianbeyrend : you have added the piper-pa-28 and your description also says PA-28 but as mentioned by @Maki152 your screenshot is for the cessna-185-skywagon . Could you confirm for which aircraft you are reporting the issue ?

Hi @stianbeyrend
On the assumption that this is the C-185 (and it looks like it to me also), I gave it a test with the three stations you mentioned.
I tried WTN (British Isles) and got the correct signal. I was flying north, and the station was off to my left (west).

Note: there are two WTNs in the standard data base, but the second one is a TACAN not an NDB:

Next I tried SGA, but it only shows as a VORDME in South America, not an NDB, so it can’t be tested as an NDB:

Finally, I was going to test TAN, but it doesn’t show up anywhere on the search list. Could you tell me where it’s showing up on your system and I’ll do some more research. I don’t know if there’s a limit on how many items the search box can display.

The final questions, are you using the standard MSFS 2024 nav database, and do you have any add-on’s with your sim? Third-party sceneries in particular sometimes add/remove things that conflict with the standard navdata.
Regards

#1 Yes i did file for a PA-28, and i did put the picture of the C-185. 2 reasons. first the problem to me is not the aircraft it is the ADF. I put Pa-28 because i had to put something. the Second reason, i did want to try other aircraft to confirm the problem was the ADF and not the Aircraft. and i took the picture at that point.

#2 i check the ADF on the ground because it is where i do my flight set up before a flight. Not like the VOR, the ADF wave bounce back from the atmosphere, so i should have the ADF working on the ground.

So i am sorry for not doing the proper troubleshooting of the systems first, or describe the real problem at the first place. how ever the ADF should work on the ground. where it is not always the case for a VOR who work on the line of site.

I do appreciate the quick response from you guys thank you.

Cannot replicate for the 3 NDBs provided by OP:

Spawning on ground at EGNO:


C152, ADF needle shows the NDB direction:

C185, ADF needle shows the NDB direction:

This NDB does not exist in the sim even if it seems existing IRL:


No NDB in Little NavMap neither on the world map:

Even if tuned to 425, needle does not move as expected:

Cannot find this NDB:

While it does appear that this NDB is still up I would like to say that OurAirports is not a good site if you’re looking for up-to-date information. Much of the information on it is very outdated.

EDIT: As I mentioned it does appear that this NDB is still up. The problem seems to be with the navdata from Lufthansa Systems. It doesn’t work. Using Jeppesen navdata it works.

Here it is in the Aerostar. Works in the Dakota also.

Associated with GMTT? It works.

Thanks for the additional insight. For those NDBs that exist IRL but missing from Lufthansa Systems they should be reported in separate reports in the Bug Reporting Hub > ATC, Traffic & NAVAIDs category.

Topic moved to User Support Hub since if the NDB exists it can be received from the ground (see WTN NDB example in my above post), so not a bug.

The NDB SGA no longer appears in the Guatemala national AIP as of March 2025 and appears to be decommissioned. It appears that the Jeppesen data is in error here.

Fair enough.

Hi,
We have reported this to Jeppesen, and the SGA NDB has also been removed from AIRAC 2604 onwards. Thank you very much for this hint!

Cheers,
Richard

I normally fly the Piper PA-28 Dakota, and I’ve noticed a strange issue with NDB reception.

If I perform a cold start and go through the entire engine start procedure manually, the aircraft does not receive any NDB signals.

However, if I start a flight on the runway with the aircraft already running, the NDBs are received correctly.

Furthermore, if I perform a cold start after having previously started the aircraft in a running state, the NDBs work correctly as well.

I have been able to reproduce this behavior multiple times and with several different NDB stations. It is clearly a bug in the simulator.

For those that usually start with the engine ON (not cold start), you won’t see the problem. But this is a simulator for those that enyoy doing every step from the beginning, so it’s not acceptable that the ADF fails in a cold start.

Known issue: PA-28-236 Dakota ADF Not Working from Cold and Dark Start in MSFS 2024