[mythtv-commits] Ticket #12659: Feature patch - Reduce US OTA channel scanning time

[MythTV]

#12659: Feature patch - Reduce US OTA channel scanning time
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     Reporter:  Gary Buhrmaster                  |      Owner:
  <gary.buhrmaster@…>                            |
         Type:  Patch - Feature                  |     Status:  new
     Priority:  trivial                          |  Milestone:  unknown
    Component:  MythTV - Channel Scanner         |    Version:  Master Head
     Severity:  low                              |   Keywords:
Ticket locked:  0                                |
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 In the US, as of 2009, all OTA digital transmissions were eliminated on
 channels 52 to 69 (the 700MHz frequencies reallocated to mobile services),
 with low power analog station transmissions being allowed to continue
 until the winner of the spectrum decided to utilize it.  As of late 2015,
 all remaining LPTV analog stations were also eliminated from channels
 52-69.

 In the future, channel 51 has been designated as a "guard channel" (for
 mobile devices) and the FCC has suspended new assignments on that channel,
 and some stations are moving off, but it is still in use in some
 locations.  Longer term, depending on the results of auction 1000/1001,
 additional channels may be eliminated, but that will likely take another
 3-5 years to accomplish.

 This is a very low priority issue, but may reduce the time spent for a
 channel scan with default settings (individuals can, as always, manually
 chose to only scan channels 2-51, but most likely do not know the current
 FCC assignments), although as channels scans are not common, the reduction
 in time is not overly significant (except, perhaps, in user experience).

 (Note that unaddressed is that channel 37 in the US (and the same
 frequency range in many parts of the world) is designated for radio
 astronomy, and is unused for OTA broadcasting (although, this, too, may
 change with Auction 1000/1001)).

 (completely) Untested patch follows to set the UHF range to 14-51 from
 14-69 will be attached.

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Ticket URL: <https://code.mythtv.org/trac/ticket/12659>
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