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Search: Keyword(s): ; Posts Made By: dr1394
Forum: Local HDTV Info and Reception   08-23-2016, 09:43 PM
Replies: 14,072
Views: 1,090,812
Posted By dr1394
Since it's a worm drive, the U-100 and U-110...

Since it's a worm drive, the U-100 and U-110 could really take the abuse. At my old rental house, I had a 29 foot long, 14 lb. ham antenna on a push up mast with the U-110 and thrust bearing.

Ron
Forum: HDTV Technical   08-15-2016, 05:27 PM
Replies: 1,376
Views: 204,274
Posted By dr1394
All devices connected to the cable have a tuner...

All devices connected to the cable have a tuner in them, including HSI modems. Currently, all of the bits being delivered by the cable (whether they're IP bits or linear channel bits) are on a QAM...
Forum: HDTV Technical   08-15-2016, 04:11 PM
Replies: 1,376
Views: 204,274
Posted By dr1394
Right now, with DOCSIS 3.0, IP is delivered over...

Right now, with DOCSIS 3.0, IP is delivered over QAM.

Here's what my Comcast system looked like in 2014. The three big downward spikes are the remaining analog channels. Everything else is QAM.
...
Forum: HDTV Technical   08-12-2016, 06:32 PM
Replies: 1,376
Views: 204,274
Posted By dr1394
I still haven't hooked up my replacement STB....

I still haven't hooked up my replacement STB. :eek: When Cartoon Channel or HBO switches to H.264, I'll be forced to. :)

On the HBO recording I took yesterday, I did notice that they've switched...
Forum: HDTV Technical   08-12-2016, 06:12 PM
Replies: 1,376
Views: 204,274
Posted By dr1394
Here's a bit-rate graph I made for HBO on my...

Here's a bit-rate graph I made for HBO on my Comcast system here in Silicon Valley. It's the first hour of "Jurassic World" that I recorded yesterday. The red line is just an average that would match...
Forum: HDTV Technical   08-12-2016, 06:06 PM
Replies: 1,376
Views: 204,274
Posted By dr1394
Yes. Here's the press release from 2011. ...

Yes. Here's the press release from 2011.

http://www.prnewswire.com/news-releases/espn-to-utilize-motorola-mobilitys-1080p60-hd-video-distribution-solution-123451009.html

Ron
Forum: HDTV Technical   08-11-2016, 05:41 PM
Replies: 1,376
Views: 204,274
Posted By dr1394
The DSR-6100 just outputs the transcoded MPEG-2...

The DSR-6100 just outputs the transcoded MPEG-2 HD stream (along with an internally generated SD stream downrezzed from the HD stream) on DVB-ASI or Gig-E. There's always going to be a re-multiplexer...
Forum: HDTV Technical   08-06-2016, 10:11 PM
Replies: 1,376
Views: 204,274
Posted By dr1394
I worked with Motorola on the DSR-6100 IRD for...

I worked with Motorola on the DSR-6100 IRD for ESPN back in 2010-11. One of the features was that only ESPN can configure the MPEG-2 bit-rate.

Ron
Forum: Local HDTV Info and Reception   08-04-2016, 06:16 PM
Replies: 15,660
Views: 1,672,556
Posted By dr1394
I have to hook up my replacement STB. Doh! ...

I have to hook up my replacement STB. Doh!

Ron
Forum: Local HDTV Info and Reception   08-04-2016, 06:14 PM
Replies: 15,660
Views: 1,672,556
Posted By dr1394
It's finally happening. Current H.264 channel...

It's finally happening. Current H.264 channel list (in Googleville).

734 A&EHD
742 ESQHD
746 HGTVD
751 APHD
754 VELOC
758 HSTWD
774 HLNHD
775 WGNAM
Forum: Local HDTV Info and Reception   08-04-2016, 05:48 PM
Replies: 15,660
Views: 1,672,556
Posted By dr1394
Looks like Starz network (channel 816) is now...

Looks like Starz network (channel 816) is now H.264. First major channel (at least in my mind) to transition.

Ron
Forum: HDTV Technical   07-29-2016, 03:45 AM
Replies: 396
Views: 18,876
Posted By dr1394
Dont' feel bad, WRAL is having a difficultly...

Dont' feel bad, WRAL is having a difficultly themselves. From the article linked previously.

TV Technology: How does the coverage area of the experimental signal compare to the station’s primary...
Forum: HDTV Technical   07-28-2016, 08:03 PM
Replies: 14
Views: 714
Posted By dr1394
From this article, it looks like LG has a...

From this article, it looks like LG has a demodulator chip.

http://www.tvtechnology.com/resources/0006/coming-soon-atsc-30/278850

But given that the standard isn't finished yet, it's unlikely...
Forum: Local HDTV Info and Reception   07-07-2016, 10:01 PM
Replies: 14,072
Views: 1,090,812
Posted By dr1394
Good stuff, but a few corrections. ...

Good stuff, but a few corrections.



8VSB is 64QAM with the Q value of the IQ symbols always set to zero. The residual carrier or pilot is created by adding 1.25 to each symbol (-7, -5 -3, -1,...
Forum: Local HDTV Info and Reception   06-30-2016, 12:15 AM
Replies: 14,072
Views: 1,090,812
Posted By dr1394
Some of the LPTV stations currently on low VHF...

Some of the LPTV stations currently on low VHF will get booted off the air.

Ron
Forum: Local HDTV Info and Reception   06-13-2016, 10:24 PM
Replies: 14,072
Views: 1,090,812
Posted By dr1394
Be aware that ATSC 3.0 (assuming that it actually...

Be aware that ATSC 3.0 (assuming that it actually sees the light of day) will be H.265 (also known as HEVC), not H.264.

Ron
Forum: HDTV Technical   05-13-2016, 05:54 AM
Replies: 396
Views: 18,876
Posted By dr1394
You can see how military/government bands are...

You can see how military/government bands are used from the NTIA.

https://www.ntia.doc.gov/files/ntia/publications/compendium/0225.00-0328.60_01DEC15.pdf
...
Forum: HDTV Technical   05-03-2016, 04:19 AM
Replies: 1,376
Views: 204,274
Posted By dr1394
HBO moving to HEVC uplinks. ...

HBO moving to HEVC uplinks.

http://ir.arris.com/phoenix.zhtml?c=87823&p=irol-newsArticle&ID=2158195

Ron
Forum: HDTV Technical   04-27-2016, 02:01 PM
Replies: 13
Views: 477
Posted By dr1394
I have some tools you can try. The first one is a...

I have some tools you can try. The first one is a Transport Stream demuxer.

http://www.w6rz.net/xport.zip

Usage is:

xport someclip.ts 1 1 1

It will show packet counter discontinuities in...
Forum: Local HDTV Info and Reception   04-13-2016, 03:46 PM
Replies: 14,072
Views: 1,090,812
Posted By dr1394
Sounds like KICU will be on the auction block. ...

Sounds like KICU will be on the auction block.

Ron
Forum: Display Calibration   03-30-2016, 11:19 PM
Replies: 4,389
Views: 3,019,758
Posted By dr1394
Here's a better example. I've thrown together a...

Here's a better example. I've thrown together a black level pattern for testing. The first pattern has all the bars aligned on 8 pixel boundaries. It's actually lossless compared to the original YUV...
Forum: Display Calibration   03-29-2016, 07:45 PM
Replies: 4,389
Views: 3,019,758
Posted By dr1394
It's pretty difficult to avoid compression...

It's pretty difficult to avoid compression artifacts like this. The only way is to align all edges on 8 pixel boundaries. This ensures that each DCT or integer transform block does not contain any...
Forum: Display Calibration   03-29-2016, 07:32 AM
Replies: 4,389
Views: 3,019,758
Posted By dr1394
The thread split into two different paths. In...

The thread split into two different paths. In post #4316 (http://www.avsforum.com/forum/usertag.php?do=list&action=hash&hash=4316) , ConnecTEDDD was commenting on the level shifts in fluxo's image...
Forum: Display Calibration   03-29-2016, 04:30 AM
Replies: 4,389
Views: 3,019,758
Posted By dr1394
All three components (Y, Cb and Cr) are...

All three components (Y, Cb and Cr) are compressed.


It's not due to compression, it's from rounding errors when converting RGB to/from YCbCr.

Ron
Forum: Display Calibration   03-29-2016, 04:19 AM
Replies: 4,389
Views: 3,019,758
Posted By dr1394
The line you're complaining about will be present...

The line you're complaining about will be present in YUV too.

Ron
Showing results 1 to 25 of 998

 
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