[mythtv] Ticket #2087: Clean up NTSC cable frequency tables

Michael T. Dean mtdean at thirdcontact.com
Tue Jul 25 19:15:20 UTC 2006

On 07/24/06 17:51, MythTV wrote:

>#2087: Clean up NTSC cable frequency tables
> Changing to a task. The digital tables should be fixed as well and there
> are no patches for those.

Daniel, due to a combinatorial explosion caused by the number of changes 
required for the digital frequency tables and not knowing for sure which 
patches will be applied and in which order, I'm going to hold off on the 
fine-tuning patches for digital channels until some of the others are 
applied.  Since you previously indicated a desire to fix the major 
issues before 0.20 and hold off on the fine-tuning until after (to allow 
for better testing), this should fit your plans.

The issue is that to fine-tune the HRC frequency table, I'll have to use 
a _frequencyStep of 6000300Hz, but standard and IRC still need to use 
6000000Hz.  Therefore, I'll need to modify the FREQ define to allow 
specifying the _frequencyStep, which will affect every line of the 
definitions.  Also, I'll need to break out the radiocommunication and 
radionavigation bands for standard and the radionavigation bands for IRC 
into separate entries.  Once we've got the important fixes in SVN, I'll 
make patches to do the fine tuning so I don't have to make before/after 
patches for every combination.


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