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Dunno if anyone would know this, but why wouldn't a TV station with multiple channels broadcast HD content to both, if it was available?
I ask this after watching some of last nights game on WHIO's 7.2 channel. This channel typically is used for 24/7 weather, but they also air Dayton Dragons and our preseason games.
I understand why the content that they create is SD since they would have to upgrade their equipment for HD, but the feed from WKYC is HD and WBNS airs it as that.
I figure it might be a cost up for those carrying a feed, but I guess I'm wondering if it's because WKYC charges a premium or if there are other considerations (hardware, wattage...) for a station to air multiple HD channels.
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Legend
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Not all programming on HD channels is shot with HD camera's, so while the quality overall will be better than an analog channel, it still wouldn't be a true HD program.
We don't have to agree with each other, to respect each others opinion.
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Hall of Famer
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It's always bugged me, too. But, I can see why they don't want to do it...not really much there that requires HD.
#gmstrong #gmlapdance
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Quote:
Not all programming on HD channels is shot with HD camera's, so while the quality overall will be better than an analog channel, it still wouldn't be a true HD program.
As initially stated, the WKYC broadcast is HD as well as Columbus's WBNS. I was just wondering why Dayton's WHIO 7.2 wouldn't do the same.
I'll throw them an e-mail and see what comes of it.
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Legend
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Legend
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Quote:
Quote:
Not all programming on HD channels is shot with HD camera's, so while the quality overall will be better than an analog channel, it still wouldn't be a true HD program.
As initially stated, the WKYC broadcast is HD as well as Columbus's WBNS. I was just wondering why Dayton's WHIO 7.2 wouldn't do the same.
I'll throw them an e-mail and see what comes of it.
didn't see this thread before. it is likely a bandwidth issue.
each station has a frequency that they are allowed to broadcast their signal over. each frequency only has so much bandwidth (amount of data / time) that they can use. HD takes a ton more bandwidth than standard. so, if they are up against their bandwidth budget, they likely cannot support 2 channels of HD.
#gmstrong
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I didn't realize that. I thought OTA is only limited by hardware. Maybe a licensing issue?
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Legend
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Quote:
I didn't realize that. I thought OTA is only limited by hardware. Maybe a licensing issue?
You are licensed for a fixed spectrum of frequencies. Given the frequencies, you can only transmit a finite amount of data per second.
An incredibly overly simplified example (not a real world example by any means):
If your station transmitted in the 100Khz frequency.. then you are transmitting 100,000 cycles per second.
If you can send 2 kilobytes per cycle, then you are transmitting at a fixed rate (when at full power) of 200,000 kilobytes per second.
A 1080i picture contains 1920x1080 pixels to make up each image/frame displayed, or 2,073,600 pixels in total. If it is sent in 32 bit color, then you need 32 bits of data for each pixel... giving you a total bandwidth need of 6,635,520 - or 66,355 kilobits - bits per frame. Using 24 frames per second, you'd need a total bandwidth of 1,592,520 kilobits per second in order to send that signal.
WHIO transmits at 174MHz, or 174,000,000 cycles per second. I have no idea what their bitrate is.... but if it is only 1kb per cycle, then there's gonna be a problem in trying to get more than one HD channel into their spectrum.
Browns is the Browns
... there goes Joe Thomas, the best there ever was in this game.
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OK. Thanks logo and purp. 
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Legend
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Yeah I figured that after a couple other replies, I misunderstood the question.
We don't have to agree with each other, to respect each others opinion.
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