DRM coverage & schedules

Could someone say whether I should be able to receive these DRM stations 24
hours a day in Manchester:

BBC World Service
Deutsche Welle
RTL

(...)

But you just said you do not have a SW (AM) radio!!!!!
How can you compaire DW on DRM with their broadcasts in the 49 m band?

Doesn't the MR do SW ?

Cheerio! Kr. Bonne.

The schedules suggest that I should be able to receive these stations at all
times because the target is "Europe":

I seem to remember seeing a diagram somewhere showing the BBC World
Service DRM coverage actually being aimed at continental Europe not at
the UK. Shame I can't remember where I saw it. That might explain why
you have trouble getting it in Manchester.

The DRM people shouldn't claim that it's targeted at "Europe" then, because
the UK is part of Europe. But I'll ask in the DRM software forum about this
anyway.

Richard E.

Also, does anybody know what bit rate level these DRM stations are using?

Just found out how to find the bit rate levels (they're hidden in the
Engineering information, and you don't get any instructions on how to get to
that in the manual):

Deutsche Well:

MER varies between 8 to 22 dB
Mode B
Bandwidth = 10 kHz
Interleaver depth = Long
SDC = 16-QAM
MSC = 64-QAM
Coding = SM
Protection = EEP (0)
Audio = 17020 bps
Data = 0 bps
Total = 17460 bps
Mode = Para(metric) stereo
Coding = AAC
SBR = Yes

RTL:

MER varies wildly between around 9 to 18 dB (don't know what MER is)
Mode B
Bandwidth = 10 kHz
Interleaver depth = Long
SDC = 16-QAM
MSC = 64-QAM
Coding = SM
Protection = UEP (0/1)
Audio = 19000 bps
Data = 0 bps
Total = 19080 bps
Mode = Para stereo
Coding = AAC
SBR = Yes

BBC World Service = unavailable at the moment

At such low bit rate levels, I think they should use mono instead of stereo.

But isn't it Parametric Stereo ?
So isn't that like mono anyway, but with an added data stream of only
about 2k to convert it to stereo.

I think it's about 3k. My point is that at such incredibly low bit rates
(17 - 19 kbps) then even though 3 kbps is low, it should still be used to
improve the dreadful audio quality instead of trying to provide stereo.

Fair enough.

3k might indeed make some difference at such low bit rates.

Richard E.

Richard E.