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KRCW 32.1 has slightly more bandwidth allocation then KATU 2.1 on RF 24.
KATU is running a 100% variable bitrate with all the feeds in a single statmux. Bits are automatically reallocated based on content with even distribution.
You’ll see times that KATU is pulling more bits vs. KRCW too, it just depends.
The new ATSC 1.0 encoders at KATU are now online. Unfortunately this means that MeTV is now in 480i, but I’ve noticed that the new encoders are providing much better picture quality (less macroblocking).
KRCW 32.1 is being encoded, but the tables are currently hidden until 10am tomorrow.
Last week and this week, KATU, KOIN and KRCW will be intermittently running between low power at the auxiliary site, half-power at the main site, and a few tests at full-power from the main site. This is to allow the combiner manufacturer to do some tests/analysis so the site can be at full-power by 7/28.
All the stations are installing new ATSC 1.0 encoders, so expect plenty of null packets to be flying around. 🙂
KPTV could be working on getting their ATSC 3.0 exciter configured. Don’t know if they would be running at lower power from an auxiliary site in order to get that completed.
KRCW has also been spending time last week and this week to get their new ATSC 3.0 exciter installed. The Nexstar team has been working really hard to decommission old equipment and general cleanup from the KRCW suite. Viewers won’t know the difference, but it should make the old IOT transmitter more reliable and hopefully a bit more serviceable!
On Tuesday, July 28th, the ATSC 1.0 hosts will begin simulcast of their guests at 11 AM. Verification will be made during that hour to make sure when viewers rescan that they’ll be able to receive KRCW and KPDX on the new channels.
At Noon, KRCW and KPDX will switch from their ATSC 1.0 exciters to their ATSC 3.0 exciters and we’ll begin verification of that transmission.
If everything goes to plan, viewers can perform a rescan after Noon to continue to receive KRCW and KPDX. Translator viewers will get some bonus content too (especially if they receive KATU but not KRCW).
As of right now, the July 28th transition date will be all encompassing. Stacking and ATSC 1 to ATSC 3 switch will be on that day.
It’s estimated that stations will be stacked for about 2 hours to verify viewers are able to rescan prior to KRCW and KPDX switching to ATSC 3.0.
The only casualty will be with MeTV being downconverted to 480i.
Translators are fed one of three ways, either via fiber, microwave, or off-air receive. There is nothing currently written that indicates there will be a special mux for translators, so it is expected that whatever mux is being sent to the main transmitters will be going to translators as well. In the case of KRCW and KPDX, I imagine that they’ll switch their translators to KOIN and KPTV respectively unless it is a duplication at a particular site.
Hopefully I’ll have my HDHomeRun Quatro 4K by then so I can do some bitstream analysis. Most of the TV stations are getting Samsung Q800T, Q900TS, or Q950TS series as they are already available from Best Buy and support ATSC 3.0 reception.
Which MP3 encoder are you using? They are not all equal in quality.
KXRU-ED: I used their router for a while when I was on their 50/50 plan. When I upgraded to the 75/75 plan I switched to a Netgear router, but when I moved to 200/200 I moved to a Mikrotik (commercial router). I wouldn’t recommend Mikrotik for most people, Ubiquiti makes good stuff too and it is a bit easier to configure.
Moving to 200/200, I had inconsistent speeds (but still over 90 Mbps). I found that when the technician replaced the board in my ONT (the fiber to ethernet converter) for the faster speed, he inadvertently pierced the old ethernet cable going to the router. Once I replaced that ethernet cable, I was rocking 200/200 all day long.
Personally, I would suspect the ethernet cables first (especially the first one from the ONT to the router).
KXRU-ED: Sounds like you have a problem on your end. I got Frontier FiOS here in Hillsboro and get 200 Mbps up and 200 Mbps down all day and night.
Since manufacturers have put a temporary hold on travel, ATSC 3.0 deployments will be delayed. We’re penciled in for early June now, but I’ll keep you all posted.
mwdxer1: If I had to guess, translators will be quickly converted to ATSC 3.0 after the 5 year lighthouse period. When that happens, I wouldn’t be surprised if KPTV adds the KPDX offerings to its ATSC 3.0 signal and KOIN adds the KRCW offerings to its ATSC 3.0 signal. This is purely speculation though.
LinleyG: I didn’t see my post before either (it’s the RBR article), but it’s there now!
I know that the Pearl TV and The Spectrum Co are working on determining the transmission parameters for the ATSC 3.0 and 1.0 lighthouses right now. I don’t know when those will be finalized.
Yes, all of the .1 broadcasts will continue to be in 720p or 1080i HD.
Unfortunately the only change is that MeTV will be scaled to 480i on broadcast. I believe it will continue to be 720p on Comcast (since we feed them directly via fiber).
mwdxer1: We actually don’t need to add anything to change what the translators broadcast.
The translators receive the primary station either via microwave, fiber, or off-air* and then just rebroadcast it.
(* the exceptions being KOIN’s Neahkahnie Mtn translator being fed via DirecTV, not having any of their diginets and having open captions — and KPTV/KPDX, they send a special mux to their translators)
I don’t know what KPTV/KPDX’s plan is for feeding translators after April 20th, but if I was them I would feed KPTV exclusively to them since it will include 49.1 and KGW will have the KPDX diginets.
So, once the Portland stations have done their re-alignment here in April, you should be able to rescan and get some new stations from Megler Mtn.
Broadway: With the internet connectivity component that ATSC 3.0 has, not only can additional channels be offered seamlessly beside off-air channels, off-air channels can be augmented with higher resolution or enhanced (HDR or maybe 3D) versions.
The actual bitrate available for off-air content is roughly 25 Mbps, but HEVC encoding means only 4 to 5 Mbps will get you good 720p or 1080i playback.
As with ATSC 1.0, subscriber access is still an available component (aka, pay-TV), though I haven’t heard any plans of implementation yet.