Info on WRGT-DT here (The STA+CP listed for digital channel 30 - Not sure if they are at Full power or using the STA (Their CE did tell me a while back they were at full power) - You should be in a favorable spot for their directional antenna pattern -- I'm in their worst null to SW of their tower, but I get them like gangbusters, here. Easiest station to receive with a simple indoor antenna here :http://www.fcc.gov/fcc-bin/tvq?state...&mlon2=&slon2=
Info on WKEF-DT here : (See The STA + CP listed for Digital channel 51 - I do know they told me they were using the STA some time back because of a issue with their current transmitter -- Their STA isn't much less power than their full power allocation -- I'm thinking most probably wouldn't notice if they up the power a bit to full power ...http://www.fcc.gov/fcc-bin/tvq?state...&mlon2=&slon2=
I'd guess finding a "sweet spot" for best reception with the Silver Sensor might be your best bet. If you find out its something other than a reception issue on your end, ou could try contacting them + asking what they're currently running with if you like as well (FWIW, I haven't noticed any problems with their signal), or just ask them anyway if you want to know for sure(FCC site is usually quite accurate but not allways).
BTW, All the Dayton digital stations are on the same tower farm. WRGT-DT, WBDT-DT, and if I remember right WKEF-DT (along with analogs 26+45) broadcast from the same tower It's The one with the crossmember+3 masts on top, which used to be just WRGT 45 tower. WKEF analog(maybe the Digital too, not sure) is on a different tower a stone's throw away. - All the Dayton DTV trasmitting antennas are nice and high, and perhaps with a little moving the antenna around to find a good spot for all of them, I'd think you should have a good shot of being able to pull them all in fairly easily from your location.
Originally posted by kVp
Has anyone else noticed the pixelization and general video deterioration of the PBS Soundstage series on WPTD-DT, most recently with the Sheryl Crow concert? I think it's due to reduced bandwidth from several subchannels running at the same time.
When I check the broadcast stream using TSReader Lite, I'm seeing only 6-7 Mb/s for the recent Fleetwood Mac and Sheryl Crow concerts versus 10+ Mbs for last season's Alison Krauss and Union Station concert. I don't receive the Cincinnati stations but does anyone know if they have the same problem? IMHO, it pretty much negates the benefits of HDTV.
6-7Mps is the Maximum reading from the transport stream analyer? I believe it -- No WONDER it looks so bad lately ... yikes. I thought it looked bad before, and can believe it was at 10mb/s max as well ... For a short time when they first came on air last summer they were doing just 1 SD channel+HD, and it looked quite a bit better during that time ..(more later on why they HAVE to have at least 1 SD subchannel up) ....
Anyhow --- I noticed that the compression artifacts during PBS HD have been especially bad the past couple weeks or so. I mentioned it earlier, either in this thread or Cincy thread. Lately, anytime just about anything moves it's a blur of compression artifacts -- Sometimes now it looks really odd as you see the colors sort of "breaking up" in the little blocks.(not the best way to describe it, but I can't think of anything better). My OTA ANALOG looks better than that when things, people or animals in the forest move or the whitewater runs/etc ....
This is going to get a little loong --- as it's a complicated issue to address -- hope I don't repeat too much that you already know but here goes ---Really, I don't care how many bits it takes as long as it looks AS good as it CAN look(100% of the time) if given everything possible(for 1080i), and as long as it "works" with my current receivers ...(meaning MPEG2 Video)
I think the SD subchannels are part of the problem -- however -- They've been doing it all along with the same number of services(supposed to be 2SD+1HD I think, but sometimes its 3SD+ 1HD), but it has gotten much worse in last couple of weeks or so.
As reported by DTV insider earlier in this thread -- They've been working out bugs and such lately, so maybe that's the reason for the change. Lets hope so anyway, as they could be allocating bandwidth beyond just the oppurtunistic sort to other stuff besides the SD/HD services(datacasting/etc) .HD/SE Encoders don't need to use ALL of the bandwidth all the time -- just usually in relatively short periods(which can crop up at any time) does 1080i HD need everything, hence much of the time there is oppurtunistic bandwidth available for other uses ..... Sending programming/etc. to schools for instance ....
They are saying that there are more advanced MPEGII HD encoders out there now(along with using Stat mux) that can give as good quality HD video at 13mb/s with 1080i as older encoders do at say, 17-18mb/s (there is 19.383 Mb/s total which they can use -- butsome of it has to go to Audio+PSIP. I'll believe it when I see it, and I haven't seen it yet. 720p seems to work just fine at 15mb/s or so, though. I don't know what encoder WKEF-DT is using with their SD subchannel, but I think it looks pretty good at 1080i for whatever reason. I can't say I can't tell the difference between them and WLWT-DT NBC Cincinnati(which gives HD everything)during bandwidth demainding programming, but it's nowhere near as drastic a difference as comparing WHIO-DT to WKRC-DT(now allocating HD everything -- Webhopper is gone), or among the PBS HD affiliates.
As for Cincinnati PBS -- WCET-DT in Dec 2002/Early Jan 03 Gave PBS HD everything -- It was just a single HD service at time -- and it was absolutely beautiful ... There was Nary a hint of Compression artifacts during the most bandwidth demanding source material, even if you press your nose right up to the screen. During those 2 months, they also ran the HD throughout their hours of operation (8am~11pm) -- That was before the Analog simulcast rule went into effect though .. They are required to simulcast 75% of their analog programming on the digital, so they have to have at least 1 SD subchannel, now. Anyhow ... In Spring 03, they began doing something similar to what WPTD-DT does -- 4 SD subchannels during the Day, 1080i HD + 2 SD subchannels in prime time. Compression artifacts are a problem with them -- BUT it does look better as I believe they are using Stat Mux(HD gets "priority bandwidth" it looks like when it needs it -- the SD services suffer at odd times though) ....
WCVN-DT KET Covington, KY, IMO has the best HD PQ from PBS HD currently. They also run 2SD services+ HD in prime time, 4~6 SD services the rest of the time -- However, they send HD at 720p, which works better with Multicasting -- Doesn't quite need as much as 1080i -- I had heard from one of their engineeers who posts on Cincy thread that they also do Stat Mux, although I'm not sure if they've added the HD to the Stat Mux yet -- You can't tell it if they did -- not saying it wouldn't look better at with no multicasting and at 1080i, and you do occasionally see the "little blocks"(We often call it "macroblocking", although that's not really quite "technically" correct) but for the most part nowadays, the vast majority of hd programming, even the demanding portions looks great, but just not quite as much detail as with 1080i.