[mythtv-commits] Ticket #2087: Clean up US cable frequency tables

MythTV mythtv at cvs.mythtv.org
Tue Jul 25 19:07:19 UTC 2006


#2087: Clean up US cable frequency tables
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 Reporter:  sphery <mtdean at thirdcontact.com>  |        Owner:  danielk
     Type:  patch                             |       Status:  new    
 Priority:  minor                             |    Milestone:  0.20   
Component:  mythtv                            |      Version:  head   
 Severity:  medium                            |   Resolution:         
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Changes (by sphery <mtdean at thirdcontact.com>):

  * type:  task => patch
  * summary:  Clean up NTSC cable frequency tables => Clean up US cable
              frequency tables

Comment:

 Added patches for digital frequency tables.  My recommendation is to apply
 the following patches before 0.20 release (in the order specified):

 mythtv-ntsc_cable-fix_t_band.patch [[BR]]
 mythtv-ntsc_irc-t_band_to_match_standard.patch [[BR]]
 mythtv-digital_cable-fix_standard.patch [[BR]]
 mythtv-digital_cable-fix_t_band-after_fix_standard.patch [[BR]]
 mythtv-digital_cable_hrc_irc-fix.patch [[BR]]
 mythtv-digital_cable_hrc_irc-fix_high.patch [[BR]]
 mythtv-digital_cable-scanfrequencytable_labels.patch [[BR]]

 Doing so will only fix the values that will not work and does not remove
 any channels (even where they're not defined for the frequency table).
 Once these patches are applied, milestone can be changed to 0.21.

 After 0.20, we can do the more experimental changes, such as:
  * removing channels (i.e. channel 1 in standard and T-band channels in
 HRC/IRC), if desired
  * finetuning frequencies (i.e. using the 6.0003MHz step for HRC and
 adjusting IRC by 12.5kHz (or 25kHz for 42, 98, and 99)
  * possibly creating a new frequency table to allow for differentiation
 between positive and negative offsets in the
 radionavigation/radiocommunications bands for channels in the standard
 frequency tables

 These patches may require digital users to rescan channels (depending on
 which frequencies their cable companies use), but likely no more so than
 [10593] did.

-- 
Ticket URL: <http://svn.mythtv.org/trac/ticket/2087#comment:2>
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