[mythtv-users] UK: managing Freeview and Freesat

Andrew Herron totallymaxed at gmail.com
Wed May 4 12:31:09 UTC 2011


On Thu, Apr 7, 2011 at 5:18 PM, Richard Lainchbury <freexe at gmail.com> wrote:

>
>
> On Thu, Apr 7, 2011 at 4:25 PM, Simon Hobson <linux at thehobsons.co.uk>wrote:
>
>> Richard Lainchbury wrote:
>>
>> >>Asking for the region would make sense here. Depending on which way you
>> >>decide to point your aerial, we can receive either Winter Hill (Granada)
>> >>or Wrekin (Midlands). Either would be valid for our post code, but the
>> >>correct answer  would depend on which way you decided to set up your
>> >>aerial. Even this excludes people who choose to have two aerials, so
>> >>they can get both regions.
>>
>>
>> >Does anyone know how current digiboxes decide?
>>
>>
>> Now there's a thing - and it applies to people with a local infill tx
>> who can also see the main tx, as well as those who can see txs from
>> different regions.
>>
>> The TVs and boxes I've set up (for a friend) simply add channels as
>> they find them, using the Freeview channel numbers. When they find
>> duplicates, they put them up at 800 onwards. At my friends house,
>> they are pointed at the main transmitter (Winter Hill), but being
>> close they also get a signal from the local infill (the town is in a
>> dip).
>>
>> Winter hill has it's muxes right at the very top of the band, so the
>> infill muxes are lower down. Predictably the boxes start from the
>> bottom, pickup barely watchable channels from the infill, and then
>> stick the real main channels up at 800+. Some system designer
>> somewhere would have had sizzling ears when I found that out !
>> If you are (as a lot of people were it seems) in a situation where
>> you get (for example) Welsh regional variants picked up before the
>> local ones you want, this is going to be even more annoying.
>>
>> One trick to deal with this is to unplug the aerial until the box has
>> scanned past the stuff you don't want - and then it only gets the
>> main channels. I picked this up while following stories of people
>> having exactly this problem when their area went into switchover.
>> People weren't very happy at "moving" to Wales.
>>
>> --
>> Simon Hobson
>>
>> Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
>> author Gladys Hobson. Novels - poetry - short stories - ideal as
>> Christmas stocking fillers. Some available as e-books.
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>>
>
> When MythTV is scanning for channels is it possible to get a reliable
> signal quality/resolution/bitrate data? Would it be possible to add that
> data when the  channels are scanned/watched so we have some data to sort by?
>
> Richard
>

Would this also help in the situation where you have more than one
transmitter delivering channels to your scan? ie a weaker transmitter being
received off the back of a terrestrial aerial. This makes deciding which
channels are wanted and which aren't a long and drawn our process.

Andrew
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