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 Post subject: Mac based DVR ?
PostPosted: Thu Aug 15, 2019 8:46 pm 
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Joined: Thu May 15, 2008 8:10 pm
Posts: 717
I've been using Miglia HD tuners as well as Elgato's eyetv hardware and software pretty contently,
being able to record and binge watch later is great, or copying the recordings to a external HD to
watch on a TV rather than a computer.
Up til now... apparently the FCC is allocating more of the digital spectrum to WiFi
and all the TV stations have to do a frequency shift, which apparently the old Elgato hardware
doesn't like, some channels don't show up after a frequency scan which also happens to be
the channels I time shift.

Any of you folks use a over the air (OTA ) tuner dvr hardware set up that you like ?


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 Post subject: Re: Mac based DVR ?
PostPosted: Fri Aug 16, 2019 6:15 am 
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Joined: Sat Apr 11, 2009 2:15 pm
Posts: 6694
Location: NYC
I know nothing about the hardware you employ, but just to say that I needed to do any number of rescans before I got all the channels working/memorized again on my Samsung TV (not the greatest tuner), even though I'm facing north, line of sight, to WTC and Empire State Bldg. Slight changes in antenna position at window were also needed. Seems some stations are operating at reduced power or not yet at the top tower of the WTC. Hearing that a good deal of this may be resolved by Labor Day. So you may want to try rescanning a number of times, or waiting a bit before you invest in something new.

These guys seems to know about this stuff:

https://www.avsforum.com/forum/45-local ... a-678.html


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 Post subject: Re: Mac based DVR ?
PostPosted: Fri Aug 16, 2019 7:57 am 
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Hadn't heard of this forced shift!

Strangely 30 feet away in the house the TV doesn't get the lower channels, here in the trailer the TV doesn't get the upper channels.


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 Post subject: Re: Mac based DVR ?
PostPosted: Fri Aug 16, 2019 6:42 pm 
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Joined: Thu May 15, 2008 8:10 pm
Posts: 717
WZZZ-
I guess I should rescan and re position antennas till the cows come home
before blowing cash on more landfill hardware. I just wanted to see if anyone here
had a similar set up for recording programs.
My home setup is less line of sight to the ESB because of topography, my work shop is in direct line of sight
of the ESB and at a angle with the Freedom tower.
Thanks for posting the link to the AVSForum. I used to have it bookmarked but lost it
in succeeding puter moves.

BD - Apparently this frequency shift was planned not long after the switch from analog transmission to
digital, all so that there can be more wifi ! :|
It's supposed to end in 2020.
I miss the analog transmissions, at least you got something, with digital it's you have or you have not.


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 Post subject: Re: Mac based DVR ?
PostPosted: Fri Aug 16, 2019 7:37 pm 
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Yeah, Analog you could get a fuzzy picture or sound, digital everything or nothing, as you say.

I think they must've completed it here a long time ago.


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 Post subject: Re: Mac based DVR ?
PostPosted: Sat Aug 17, 2019 7:26 am 
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Joined: Sat Apr 11, 2009 2:15 pm
Posts: 6694
Location: NYC
You can use the following, from FCC, to determine tv signals available in your area (by zip code), signal strength, and frequency change per station.

https://www.fcc.gov/media/engineering/d ... startpoint


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 Post subject: Re: Mac based DVR ?
PostPosted: Tue Aug 20, 2019 5:14 pm 
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Joined: Thu May 15, 2008 8:10 pm
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Thanks Wzzz, multiple rescans and antenna waltzing seems to bring missing channels back.
Problem with digital signals is that they don't bounce well, flutter of a tree leaf can
cause the signal to go bye bye.
The FCC site is fine for general info but it really doesn't help when the info there
seems to be theoretical, I've experienced signal strength fluctuations based on the time of
day, season and weather when the FCC site says "Strong" signal.


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 Post subject: Re: Mac based DVR ?
PostPosted: Tue Aug 20, 2019 5:23 pm 
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Joined: Sat Apr 11, 2009 2:15 pm
Posts: 6694
Location: NYC
Yeah, signals come and go here too. Main ones I care about, like 21 and sub-channels, 13, 25-3, stay put...mostly. According to that AVS forum, seems like a lot of this will be in flux for a while longer, as stations are being forced to use low power, or aren't situated optimally at WTC.

Also, signals, as you note, are subject to caprices of weather, time of day, etc.


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