There are a lot of different MUAC Control feeds in the Netherlands. EHGG has one that sounds to be high traffic in the north. But EHBK Eurocontrol feeds are confusing. Which feeds cover what areas? The MUAC/Eurocontrol Misc sounds like it mixes all the Eurocontrol feeds together, making it hard to hear specific traffic. I don't know what the other locations are, like Sollingen, Ruhr, etc. any help is welcomed thank you.
You can download the Maastricht UAC Sectorization Chart off the Eurocontrol website. It shows the sector boundaries, sector names, and frequencies with associated altitudes.https://www.eurocontrol.int/articles/atc-charts
You can see the Brussels area (Red on the chart) is divided East/West, then further divided into 8 different sectors.
Brussels East = Olno Low (FL250 to FL330), Olno High (FL340 and above), Lux Low (FL250 to FL330), Lux High (FL340 and above)
Brussels West = Nicky Low (FL250 to FL350), Nicky High (FL360 and above), Koksy Low (FL250 to FL350), Koksy High (FL360 and above)
On the overnight shift all 8 sectors are combined into one position. Typically during the day shift they will use 4 positions.
(1) Olno Low + Lux Low
(2) Olno High + Lux High
(3) Nicky Low + Koksy Low
(4) Nicky High + Koksy High
Although this can vary and they can be further split into 8 separate sectors if needed.
There is a LiveATC radio covering Koksy Low (132.205) and one covering Lux High (132.315), so during typical configurations they are covering half the traffic in the Brussels area, low stuff west and high stuff east, even less when they split them beyond 4. On the overnight shift all are combined so you are hearing the same controller on both radios.
There is also a LiveATC radio covering the Ruhr Low Sector (listed as 132.615) but you will not hear anything on this radio because Maastricht changed this frequency months ago to 132.515 (correctly listed on the map) but I guess LiveATC has not got around to changing it on their radio yet ? It appears the radio is operating okay but with the wrong frequency set ?
There is also a LiveATC radio covering the Solling High sector (131.380) but this sector is quite a distance from the radio and reception range is very poor so almost nothing can be heard on this radio. It would make more sense to me if they would use this radio to cover one of the closer Brussels frequencies to improve coverage, like either one of the Brussels West High frequencies or Brussels East Low frequencies. They should be able to hear the controller on some of these frequencies ? 132.755, 133.710, 132.855, 133.355
Attached below (need to be logged on to the forum to see it) is my sector chart for the Brussels area. By noting the handoff frequency and aircraft altitude you can determine what sector configuration they are using at the time on the radio you are listening to.