[mythtvnz] DVB-T Setup for NZ

[Greg Brackley]

I used w_scan to look for signals. I changed it to scan in 250MHz increments
(because at the time I had no idea what the frequency should be) - it is the
centre of the UHF channel

When I put the channels into my mythbackend, I did a manual tuned scan for
the 3 known frequencies. Looking at the source (trunk [1] and 20.x [2]),
most of the auto scan frequency table entries probably won't work, or are
unsuitable (not 8MHz, or have an offset). When scaning, most of the
paramaters can be left at auto. Conservatively, I would scan UHF channels
21-69, but looking at the plan [4] this is overkill. I haven't tried it, but
my guess is that the Finland (or Sweden) frequency table should give the
best results when auto scanning in MythTV.

Greg.

--

[1]
http://svn.mythtv.org/svn/trunk/mythtv/libs/libmythtv/frequencytables.cpp

[2]
http://svn.mythtv.org/svn/branches/release-0-20-fixes/mythtv/libs/libmythtv/frequencytables.cpp

[3]
   // Finland
    fmap["dvbt_ofdm_fi0"] = new DVBFrequencyTable(
        474000000, 850000000, 8000000, "", 0, INVERSION_OFF,
        BANDWIDTH_8_MHZ, FEC_AUTO, FEC_AUTO, QAM_64, TRANSMISSION_MODE_AUTO,
        GUARD_INTERVAL_AUTO, HIERARCHY_NONE, QAM_AUTO, 0, 0);

[4]  Digital Television 2007 Frequency Plan
http://www.rsm.govt.nz/cms/policy-and-planning/current-projects/broadcasting/digital-television-2007-frequency-plan


[5]  MythTV finland DVB-T frequency table
    // Finland
    fmap["dvbt_ofdm_fi0"] = new DVBFrequencyTable(
        474000000, 850000000, 8000000, "", 0, INVERSION_OFF,
        BANDWIDTH_8_MHZ, FEC_AUTO, FEC_AUTO, QAM_64, TRANSMISSION_MODE_AUTO,
        GUARD_INTERVAL_AUTO, HIERARCHY_NONE, QAM_AUTO, 0, 0);