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Denver, CO - OTA - Page 266

post #7951 of 8459
I have to confess, my DTV setup has been working so reliably I have half-stopped paying attention to it. I decided to do a rescan yesterday, though, and got a couple of surprises.

First, distance. For the first time, I am getting the KDEO cluster (RF 50) up here in Fort Collins, and it seems to be fairly reliable. I have never seen *six* channels on a carrier before. Trip, if you're tuned in, I am seeing Legacy on 23-6 and "Torah TV" on 23.3, as opposed to what you have on RabbitEars.Info. I am surprised, but then I am getting passable reception of KZCO RF 17 and KCDO RF 23 as well.

Second, Fort Collins locals. I see (but not well) the brand-new-to-me Daystar repeater, KDNF-LP, at RF 44. It's north of town and also trying to hit Cheyenne, so I do far better with RF 40. I am also getting quite a solid signal on Ion's new-to-me KPXH-LP RF 25, coming better than KRMA's RF 47. All very interesting ...

Rob T
post #7952 of 8459
Quote:
Originally Posted by rthurlow View Post

Trip, if you're tuned in, I am seeing Legacy on 23-6 and "Torah TV" on 23.3, as opposed to what you have on RabbitEars.Info.

Thanks, I made the correction.

- Trip
post #7953 of 8459
Quote:
Originally Posted by Jim McCauley View Post

My Samsung BD-C5500 connects beautifully to my MythTV server (via DLNA) and plays all the captured MPEG-2 files -- I don't need to transcode. I can skip forward (> key) and back (< key) on files recorded from the local PBS affiliates (KRMA and KBDI in Denver), but not on any of the recordings of programs from commercial stations.

Is there some flag embedded in the recorded streams that allows or denies skipping capability on networked media players?

No, there is nothing in the PSIP similar to what DVD's/BluRay's have to enable/disable various controls. I have no problem skipping forward or backward with any of my mpeg-2 recordings (not transcoded) that I access from by Sony TV via DLNA. The problem is either with your TV (not likely) or the way that Myth TV is doing the recording. Even if Myth TV is not transcoding the recording, it could create an "illegal" recording if it is stripping out other subchannels improperly.
post #7954 of 8459
Thanks for the reply!
Quote:
Originally Posted by jsmar View Post

No, there is nothing in the PSIP similar to what DVD's/BluRay's have to enable/disable various controls. I have no problem skipping forward or backward with any of my mpeg-2 recordings (not transcoded) that I access from by Sony TV via DLNA.

What sort of DLNA PVR are you using?
Quote:


The problem is either with your TV (not likely) or the way that Myth TV is doing the recording. Even if Myth TV is not transcoding the recording, it could create an "illegal" recording if it is stripping out other subchannels improperly.

Hm. My MythTV recording profiles for both commercial and PBS stations are identical. So the question remains: why can I skip on recordings from KRMA and KBDI but not on any of the commercial channels?

Jim McCauley
Fort Collins CO
post #7955 of 8459
Quote:
Originally Posted by Jim McCauley View Post

My Samsung BD-C5500 connects beautifully to my MythTV server (via DLNA) and plays all the captured MPEG-2 files -- I don't need to transcode. I can skip forward (> key) and back (< key) on files recorded from the local PBS affiliates (KRMA and KBDI in Denver), but not on any of the recordings of programs from commercial stations.

What wrapper is the captures saved under (MP4, TS, MKV, ...)?
post #7956 of 8459
Quote:
Originally Posted by Jim McCauley View Post

Thanks for the reply!

What sort of DLNA PVR are you using?

I do it in two different parts. The recording is done by homegrown software that is HDHomeRun specific. The output would be the same as what the HDHomeRun linux command line tools would record. The HDHomeRun firmware does the subchannel filtering, reconstructing the PAT and making other adjustments to produce an mpeg transport stream file. So once I've configured the HDHomeRun for the program I want it is just a matter of receiving the stream from the HDHomeRun and writing it to a file.

I use minidlna as my DLNA server. The DLNA standard is partly based on uPNP. There are a lot of servers out there that claim to conform to the DLNA standard, but really only conform to uPNP. It turns out that my Sony TV is really picky about conformance to the DLNA standard, and minidlna was one of the few true DLNA servers that worked with my Sony TV. I thought I remembered Samsung TV's being less picky, but I just noticed some reviews on the minidlna SourceForge site that claimed that minidlna was the only DLNA server that worked without issues with their Samsung TV. I don't know how reliable those reviews are, but perhaps you should give minidlna a try (I don't know if you can have both MythTV and minidlna running at the same time, and since you'll want to continue to use MythTV for your recording you may need to configure MythTV to turn off DLNA/uPNP).

Quote:
Originally Posted by Jim McCauley View Post

Hm. My MythTV recording profiles for both commercial and PBS stations are identical. So the question remains: why can I skip on recordings from KRMA and KBDI but not on any of the commercial channels?

When you asked what I used I remembered an issue that I ran into that led to the same problem, but it was a lot more random (although it happened much more frequently on KDVR than any other station). The issue is related to the wrapping of the mpeg PTS (Presentation Time Stamp). For mpeg program stream files, the PTS typically starts at 0 and counts up. For a transport/broadcast stream the PTS is continually running, and has to be reset at least once a day. A transport stream file is just a portion of that broadcast stream, so it may or may not contain a change in the PTS. Some stations reset the PTS only once or twice a day, whereas KDVR does it many times per day. I don't recall any other station doing it that often, but I don't have current data.

Anyway, if you record a program, and the station resets the PTS during that program, you will have a transport stream file whose start time is greater than the end time. There is nothing wrong with that as far as the standard goes, but the ffpmeg libavformat library didn't support that two years ago when I discovered the problem. Almost all open source media software uses the ffpmeg libraries, e.g. vlc, MythTV, minidlna, etc.

I reported the problem about two years ago, along with a patch. They followed up within a month and fixed the problem in the top of tree. Note that although the problem was fixed almost two years ago in the top of tree source, it sometimes can take a while to trickle down, i.e. make it into an official ffmpeg release, then make it into various media software releases, then have that incorporated into various linux distributions (depending on how the linux distribution is done the intermediate step may not be a factor). So if this problem is affecting you it may be fixed by a later release of MythTV if you are not running a recent version.

One way of verifying that this is the issue is via the ffmpeg command line tool. It's possible that you only have the libraries installed (i.e. libavformat, libavcodec, etc.). If so, you should be able install the ffmpeg command line tool. Then just type "ffmpeg -i ". The ffmpeg tool has various uses, but if you only specify an input file, ffmpeg will just print information related to the format of the file. It may also print a variety of errors that are not really an issue. Look for a line that shows the duration of the file. If it shows "Duration: N/A" then that would indicate you are running into this problem.

It appears that fffmpeg changed their tracking system and no longer shows the older issues, so I can't check which version of libavformat the fix was first incorporated into.
post #7957 of 8459
Anyone else having issues with Channel 9? My signal strength says 99/100% but it's pixelated and going in and out. Channel 7 and 4 are perfect.
post #7958 of 8459
Quote:
Originally Posted by David James View Post

Anyone else having issues with Channel 9? My signal strength says 99/100% but it's pixelated and going in and out. Channel 7 and 4 are perfect.

Yep - channels 9 and 20 are on the fritz for me, too.

UPDATE - found this.
post #7959 of 8459
I notice OTA was hosed during the NBC National news... switching to *D fixed it. That is all I watch on 9 at night, so I didn't think anymore about it...
Interesting "technical problems" ??

Phil

Quote:
Originally Posted by HTMVinnie View Post

Yep - channels 9 and 20 are on the fritz for me, too.

UPDATE - found this.
post #7960 of 8459
Quote:
Originally Posted by HTMVinnie View Post

Yep - channels 9 and 20 are on the fritz for me, too.

UPDATE - found this.

Thanks ever since cutting the cord last year I'm always thinking issues like this are my fault .
post #7961 of 8459
KMGH has way too many #$@! sub channels.

During CMA Country Christmas last night, not only was the picture quality grainy, but pixellation was frequent and annoying.

Once again I say that the best we've ever seen HD look is when the transmitters were still atop Republic Plaza and KMGH's building.
post #7962 of 8459
I haven't seen anyone mention this, but my KMGH reception has gone to crap during the past month or so. Did they reduce power on 7 when they powered up 17 or something? I used to get excellent reception on KMGH, but now I frequently have only partial recordings due to poor reception. I checked all of my connections to make sure they are tight, and rebooted my TiVo HD, but that hasn't made any difference. I haven't moved my antenna or changed anything else, and I haven't noticed problems with any other stations, so I don't think it's a problem on my end. Just curious whether anyone else has had problems with KMGH lately.
post #7963 of 8459
KMGH has been rock steady here in Monument. 85-90% signal strength on my DTVpal DVR and no breakups. Haven't had any problems with KUSA either (that I've seen).
post #7964 of 8459
KTVD will be adding Me-TV.

- Trip
post #7965 of 8459
Quote:
Originally Posted by Trip in VA View Post

KTVD will be adding Me-TV.

- Trip

Thanks for the info Trip. I'll be looking forward to it.

That is a great choice to replace NBC-US.
post #7966 of 8459
Quote:
Originally Posted by dkreichen1968 View Post

That is a great choice to replace NBC-US.

Let's hope it is, as you say, a replacement, not an addition.

post #7967 of 8459
Don, it is, since NBCUS goes away on January 1.

- Trip
post #7968 of 8459
This is my first time posting here, hi! I'm wondering if people are still having issues with KUSA? All of our other channels are full strength but 9 is single bar red. The issues started a few days ago, but we had some signal. This morning it wasn't coming in at all. Just curious if it's just us and if so, what should we try? It's been fine until the last few days so I'm confused.

Thanks! I've gained all my advice on our antenna from here, you are all so helpful!
post #7969 of 8459
I haven't noticed any difference for with channel 9. I'm getting 98% here in Highlands Ranch.
post #7970 of 8459
Quote:
Originally Posted by Hethyr View Post

Just curious if it's just us and if so, what should we try?

Hethyr, try re-scanning for channels. KUSA and KTVD had a problem last Thursday where their transmitters were live, but they were sending a blank screen on all sub-channels. This glitch may have "confuzzled" your tuner. If so, re-scanning should clear it up. If a simple scan doesn't do it, try a double re-scan by following these instructions.
post #7971 of 8459
Thank you! I'll tried rescanning without success, I'll look at the link you added and try it (if we can) now!
post #7972 of 8459
I tried the steps listed in the link, and it didn't work either. Is it possible something happened to our antenna in this last snow storm? It doesn't seem likely that it moved since all the other channels (including 20) are full signal strength (it does pick up 9 still but has 1 red bar).

Thank you for trying to help me!

Here's my TVFool link: http://www.tvfool.com/?option=com_wr...ec122108774fb6

I know it didn't likely change since the outage with kusa and ktvd, but I thought maybe it will speak something to someone else. I just can't figure this out.

(AND 30 minutes after adding the TVFool link it's sort of coming in now...on both TVs. Still red but it works with some freeze and dropout, better than the error of no tv signal coming in.)
post #7973 of 8459
Quote:
Originally Posted by Hethyr View Post

This is my first time posting here, hi! I'm wondering if people are still having issues with KUSA? All of our other channels are full strength but 9 is single bar red. The issues started a few days ago, but we had some signal. This morning it wasn't coming in at all. Just curious if it's just us and if so, what should we try? It's been fine until the last few days so I'm confused.

Thanks! I've gained all my advice on our antenna from here, you are all so helpful!

How is KMGH? Just a second, you could be getting KMGH off the KZCO transmitter (Channel 17 UHF). So, how is KBDI (12.1-12.3)? What kind of antenna are you using? KUSA and KBDI are VHF, KZCO and the rest are UHF.
post #7974 of 8459
Quote:
Originally Posted by Hethyr View Post

I tried the steps listed in the link, and it didn't work either. Is it possible something happened to our antenna in this last snow storm?

Yes, it is possible. That is why people are wondering about your reception of other VHF stations (KMGH and KBDI). As others have mentioned, it is possible that you are getting KMGH via the KZCO transmitter on RF17 (it is broadcasting the exact same programming as KMGH right now), so your reception of KMGH may not be good diagnostic unless your TV allows you to determine the underlying RF channel being used.

Can you give us more details about your antenna setup, i.e. what is the antenna model, is there an external antenna preamp, are you combining a high VHF antenna with a UHF antenna, etc.

It's possible that the last snow storm damaged some of the VHF elements (if you have a VHF/UHF combo antenna). Depending on the design that could affect some VHF stations more than others, or it could affect all VHF stations. Can you easily see your antenna when you are outside? I'm assuming you have an outdoor antenna, since you asked about the snowstorm possibly damaging it. Look closely and see if there are any bent or missing elements. Depending on the antenna design you may or may not be able to easily determine if there are missing elements.
post #7975 of 8459
So sorry I didn't get back on here sooner, the week has been crazy! That same night after I posted it slowly started to come in better and by the next night it was fine. It's so strange! All of the other channels were 100% full green signal strength, it was just 9. We'll watch during the next snow - maybe there's a tree that had snow on it which melted that day finally, or something? We did look at the antenna and it didn't look damaged at all. We have an RCA antenna ANT751R mounted off of the old dish pole which is attached to the chimney. We replaced all of the coax to it when we put it up there and ran the wire through the house where it's split on a powered splitter to 3 TVs (two of the TVs are computers). Just in case any of that info helps. I'll post if it happens again or doesn't next good snow we get.

Thank you!
post #7976 of 8459
Quote:
Originally Posted by Hethyr View Post

So sorry I didn't get back on here sooner, the week has been crazy! That same night after I posted it slowly started to come in better and by the next night it was fine. It's so strange! All of the other channels were 100% full green signal strength, it was just 9. We'll watch during the next snow - maybe there's a tree that had snow on it which melted that day finally, or something? We did look at the antenna and it didn't look damaged at all. We have an RCA antenna ANT751R mounted off of the old dish pole which is attached to the chimney. We replaced all of the coax to it when we put it up there and ran the wire through the house where it's split on a powered splitter to 3 TVs (two of the TVs are computers). Just in case any of that info helps. I'll post if it happens again or doesn't next good snow we get.

Thank you!

There's always the possibility that KUSA was making some adjustments on their transmitter that were just enough to affect you. Let us know if you have any more problems in the future. There are some reasonably easy (and some harder) upgrades that can be done to improve reception.
post #7977 of 8459
Quote:
"Taxi," "Cheers," "The Odd Couple" and "M*A*S*H" are some of the most popular reruns on television, replaying decades after they first won loyal fans. Some classics, like "The Phil Silvers Show​," "Dobie Gillis," and the dramas "Naked City" and "The Fugitive," may be less well-known but deserve revisiting by students of TV.

Those vintage hits and others populate a 24-hour channel debuting locally when KTVD-Channel 20 picks up the syndicated MeTV as a subchannel. They claim it's not just for baby boomers.

Starting Jan. 1, MeTV will occupy the secondary channel formerly held by Universal Sports, which is moving to cable/satellite only.

Read more: The Denver Post http://www.denverpost.com/television...#ixzz1h5fLjBwh
post #7978 of 8459
I would rather have Universal Sports than MeTV.
post #7979 of 8459
Quote:
Originally Posted by MikeBiker View Post

I would rather have Universal Sports than MeTV.

To each there own. I haven't watched much on Universal Sports for a long time. I would watch "World of Adventure Sports" and some of the skiing shows. But, Comcast turned it into a cable only network, so those folks that liked it are out of luck unless they want to pay for it. I'm glad to be getting something that I'll watch on a more regular basis.

MeTV seems to have a better line up than Antenna TV. The original "Star Trek", the original "Hawaii 5-O", "Mash", "Cheers", "Taxi", Mary Tyler Moore, etc. Of course with KCDO and KWHS (on KETD) some of the programming is repeated. I don't get either of those now, so I'm looking forward to getting MeTV.
post #7980 of 8459
I suppose it's time for my second post, 8 years after registering.

Just wondering if there are suggestions on what outdoor antenna to get? No HOA, and we would probably mount on the side of the house/roof edge where there's both an old Dish Network mount and an old antenna. Last part of TVFool Report URL at 15 feet (because I can't post URLs yet): Itemid=29&q=id%3d4033e34d5100f3. We are on the East side of Broomfield.

Thanks in advance your help!
Anne
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