GPS jamming in unexpected place

[bpcw0001]

Hi, 

for a while now, I've been losing GPS when approaching Berlin (EDDB) airport.
On inspection of the GPS jammer map provided with the challenger, it shows a GPS jamming station which according to that map must be somewhere just south of Berlin:

 

However, there is no GPS jamming in Germany listed anywhere. Neither in the CL650's "gps_jammers.txt" file, nor in any other available gps jammer source on the internet.

Where does this jamming station come from???

 

Edited October 3, 2023 by bpcw0001

[Pils]

I don’t see any active stations on this map?

[bpcw0001]

29 minutes ago, Pils said:

I don’t see any active stations on this map?

Hmm ... ok ...So what's that black square then? My current location?
What does an active station look like on that map?

Seems I got it wrong entirely? 

[Pils]

2 minutes ago, bpcw0001 said:

Hmm ... ok ...So what's that black square then? My current location?
What does an active station look like on that map?

Seems I got it wrong entirely? 

There would be a range circle and some red shading and bottom left would be some radio signal strength information.

[bpcw0001]

13 minutes ago, Pils said:

There would be a range circle and some red shading and bottom left would be some radio signal strength information.

OK. Thanks.
I had GPS outages when I took the Challenger into the Middle East, where this is expected, so I did not consult the map, which would have taught me what the jammer depiction looks like.

Consistent loss of GPS around Berlin on multiple occasions, days apart, made me misinterpret the situation.

Sorry.

Edited October 3, 2023 by bpcw0001

[Pils]

2 hours ago, bpcw0001 said:

Consistent loss of GPS around Berlin on multiple occasions, days apart, made me misinterpret the situation.

That is of interest if it happens again.