Maghera Config File

Johnboy1951

I have found two config files on my system with tuning info for Maghera but am unsure which is correct.

Contents of the files

#1

# T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy

T 690000000 8MHz 3/4 NONE QAM16 2k 1/32 NONE # CH48: Saorview MUX1
T 746000000 8MHz 3/4 NONE QAM16 2k 1/32 NONE # CH55: Saorview MUX2

#2

# T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy

T 690000000 8MHz 3/4 NONE QAM64 8k 1/32 NONE # CH48: Saorview MUX1
T 746000000 8MHz 3/4 NONE QAM64 8k 1/32 NONE # CH55: Saorview MUX2

As can be seen mod & transmission-mode are different. Was there a change some time back that might account for this difference?

Some other explanation?

Johnboy1951

Found what I was looking for ........ #1 is wrong, but I still cannot explain the difference in the two files.

The Cush

Saorview has never used 2k transmission mode, only Freeview have ever used it.

Johnboy1951

It would appear from dates and file location that a March 2013 installation of TVHeadend installed files with QAM16 & 2K whereas the newer files from April 2014, which installed into a different path, have QAM64 & 8K as posted above.

The different paths account for the presence of the 2013 files which I will now delete.

@The Cush
Thanks for confirmation about Saorview tansmissions.

Jonathan

Johnboy1951 wrote: »

It would appear from dates and file location that a March 2013 installation of TVHeadend installed files with QAM16 & 2K whereas the newer files from April 2014, which installed into a different path, have QAM64 & 8K as posted above.

I fixed the modulation in this patch: http://git.linuxtv.org/cgit.cgi/dtv-scan-tables.git/commit?id=c57839aad2260306e6adecc0058fb683a8b34bc4

Johnboy1951

Jonathan wrote: »

I fixed the modulation in this patch: http://git.linuxtv.org/cgit.cgi/dtv-scan-tables.git/commit?id=c57839aad2260306e6adecc0058fb683a8b34bc4

Thanks ...... seems I got an unpatched file originally.