Here's my usual radio channel details -
Ensemble: BBC National DAB
Channel: 12B
Frequency: 225.648 MHz
Ensemble-ID: 0xCE15
DAB-Mode: I
ECC: 0xE1
My SNR is consistently between 9.5 - 11.dB.
I looked through the DAB-Info > MSC graph, which I don't understand but have marked the time in the graph that is around the time of this problem -
https://postimg.cc/V5j0Sx9G
There is another channel that this (http://www.wohnort.org/DAB/uknat.html) describes as a 'second service', which is 'BBC R5LiveSportX'.
And, if it's useful, this is the 'multiplex configuration' info -
Ensemble 0xCE15, Label: 'BBC National DAB', ShortLabel: 'BBC DAB', LTO: +60 min, ECC: 0xE1, NumServices: 12
Audio-Service 0xC221, Label: 'BBC Radio 1', ShortLabel: 'BBC R1', PTY: Pop Music (dynamic), AnnouncementSupport: No, NumComponents: 1 (Audio: 1, Data: 0)
AudioComponent, SCIdS: 0, Label: '', ShortLabel: '', ASCTy: 0x00 (MP2), SubChId: 1, StartCU: 0, NumCU: 96, ErrorProt: UEP #35 (PL: 3), Datarate: 128 kbit/s, NumUserApps: 0
Audio-Service 0xC222, Label: 'BBC Radio 2', ShortLabel: 'BBC R2', PTY: Pop Music (dynamic), AnnouncementSupport: No, NumComponents: 1 (Audio: 1, Data: 0)
AudioComponent, SCIdS: 0, Label: '', ShortLabel: '', ASCTy: 0x00 (MP2), SubChId: 2, StartCU: 96, NumCU: 96, ErrorProt: UEP #35 (PL: 3), Datarate: 128 kbit/s, NumUserApps: 0
Audio-Service 0xC223, Label: 'BBC Radio 3', ShortLabel: 'BBC R3', PTY: Culture (dynamic), AnnouncementSupport: No, NumComponents: 1 (Audio: 1, Data: 0)
AudioComponent, SCIdS: 0, Label: '', ShortLabel: '', ASCTy: 0x00 (MP2), SubChId: 3, StartCU: 192, NumCU: 140, ErrorProt: UEP #45 (PL: 3), Datarate: 192 kbit/s, NumUserApps: 0
Audio-Service 0xC224, Label: 'BBC Radio 4', ShortLabel: 'BBC R4', PTY: Varied (dynamic), AnnouncementSupport: No, NumComponents: 1 (Audio: 1, Data: 0)
AudioComponent, SCIdS: 0, Label: '', ShortLabel: '', ASCTy: 0x00 (MP2), SubChId: 4, StartCU: 332, NumCU: 58, ErrorProt: UEP #21 (PL: 3), Datarate: 80 kbit/s, NumUserApps: 0
Audio-Service 0xC225, Label: 'BBC Radio 5 Live', ShortLabel: 'BBC R5L', PTY: News (dynamic), AnnouncementSupport: No, NumComponents: 2 (Audio: 2, Data: 0)
AudioComponent, SCIdS: 0, Label: '', ShortLabel: '', ASCTy: 0x00 (MP2), SubChId: 5, StartCU: 390, NumCU: 48, ErrorProt: UEP #16 (PL: 3), Datarate: 64 kbit/s, NumUserApps: 0
AudioComponent, SCIdS: 1, Label: '', ShortLabel: '', ASCTy: 0x00 (MP2), SubChId: 8, StartCU: 486, NumCU: 48, ErrorProt: UEP #16 (PL: 3), Datarate: 64 kbit/s, NumUserApps: 0
Audio-Service 0xC228, Label: 'BBC R5LiveSportX', ShortLabel: 'BBC R5SX', PTY: Sport (dynamic), AnnouncementSupport: No, NumComponents: 1 (Audio: 1, Data: 0)
AudioComponent, SCIdS: 0, Label: '', ShortLabel: '', ASCTy: 0x00 (MP2), SubChId: 8, StartCU: 486, NumCU: 48, ErrorProt: UEP #16 (PL: 3), Datarate: 64 kbit/s, NumUserApps: 0
Audio-Service 0xC22A, Label: 'BBC Radio 1Xtra', ShortLabel: 'BBC R1X', PTY: No programme type (dynamic), AnnouncementSupport: No, NumComponents: 1 (Audio: 1, Data: 0)
AudioComponent, SCIdS: 0, Label: '', ShortLabel: '', ASCTy: 0x00 (MP2), SubChId: 10, StartCU: 582, NumCU: 96, ErrorProt: UEP #35 (PL: 3), Datarate: 128 kbit/s, NumUserApps: 0
Audio-Service 0xC22B, Label: 'BBC Radio 6Music', ShortLabel: 'BBC R6M', PTY: Rock Music (dynamic), AnnouncementSupport: No, NumComponents: 1 (Audio: 1, Data: 0)
AudioComponent, SCIdS: 0, Label: '', ShortLabel: '', ASCTy: 0x00 (MP2), SubChId: 11, StartCU: 678, NumCU: 96, ErrorProt: UEP #35 (PL: 3), Datarate: 128 kbit/s, NumUserApps: 0
Audio-Service 0xC22C, Label: 'BBC Radio 4Extra', ShortLabel: 'BBC R4Ex', PTY: Varied (dynamic), AnnouncementSupport: No, NumComponents: 1 (Audio: 1, Data: 0)
AudioComponent, SCIdS: 0, Label: '', ShortLabel: '', ASCTy: 0x00 (MP2), SubChId: 12, StartCU: 774, NumCU: 58, ErrorProt: UEP #21 (PL: 3), Datarate: 80 kbit/s, NumUserApps: 0
Audio-Service 0xC236, Label: 'BBC AsianNetwork', ShortLabel: 'BBCAsian', PTY: Varied (dynamic), AnnouncementSupport: No, NumComponents: 1 (Audio: 1, Data: 0)
AudioComponent, SCIdS: 0, Label: '', ShortLabel: '', ASCTy: 0x00 (MP2), SubChId: 7, StartCU: 438, NumCU: 48, ErrorProt: UEP #16 (PL: 3), Datarate: 64 kbit/s, NumUserApps: 0
Audio-Service 0xC238, Label: 'BBC WorldService', ShortLabel: 'BBC WS', PTY: Varied (dynamic), AnnouncementSupport: No, NumComponents: 1 (Audio: 1, Data: 0)
AudioComponent, SCIdS: 0, Label: '', ShortLabel: '', ASCTy: 0x00 (MP2), SubChId: 9, StartCU: 534, NumCU: 48, ErrorProt: UEP #16 (PL: 3), Datarate: 64 kbit/s, NumUserApps: 0
Data-Service 0xE1C79E5E, Label: 'BBC Guide', ShortLabel: 'BBCGuide', PTY: -, AnnouncementSupport: No, NumComponents: 1 (Audio: 0, Data: 1)
DataComponent (MSC packet data), SCIdS: 0, SCId: 1, Label: '', ShortLabel: '', DSCTy: 0x3C (MOT), SubChId: 62, StartCU: 832, NumCU: 24, ErrorProt: EEP 3-A (FEC: 1/2), Datarate: 32 kbit/s, PacketAddr: 1, NumUserApps: 1
User App 1 / 1, Label: '', ShortLabel: '', UaType: 0x7 (EPG), DataLen: 1 [01]