June 9, 2020 at 8:41 pm #46773
This is brokenJune 9, 2020 at 9:22 pm #46774Shirley KnottParticipant
This is broken
You mean the website or just things in general?
June 9, 2020 at 10:05 pm #46776
- This reply was modified 3 months, 3 weeks ago by Shirley Knott.
KORK-CD’s Carrier is still up, but has been about 3dB below its accustomed level the last two nights. Given typical variations that may mean something or maybe not.
I tried tuning a TV set to it and, like you say, nada. In the absence of programing, the transmitter is apparently transmitting its basic pseudo-random symbol sequence.
LinleyJune 10, 2020 at 1:16 pm #46784
Both 🙂June 23, 2020 at 8:45 pm #46927
Station Group Owner Tegna recently file to the FCC. A rule change to move three of there TV stations. from VHF band to UHF band. The stations are located in Minneapolis, Phoenix and Portland.
The reason for the move was due to reception problems on VHF high band. Where each stations has been broadcasting from since 2009 digital switch over.
In Portland Tegna wants to move KGW from VHF 8 to UHF 26. The purposed coverage area shows at least three LPTV’s that will need to find a new home.
This would leave KOPB as the only VHF station in Portland. Unless OPB decided to reactivate UHF 27 for KOPB again. Witch has remained shutdown since 2009.June 24, 2020 at 10:28 am #46931
Interesting. Wouldn’t KPTV still be on RF12?
LJune 24, 2020 at 11:33 am #46932semoochieParticipant
I checked the FCC site and the latest construction permit on June 8th indicates that RF channel 12 will be the 1.0 simulcast.June 24, 2020 at 12:56 pm #46933jr_techParticipant
KWVT-LP, RF channel 11 also transmits from the Portland West Hills, although the COL is Salem.June 24, 2020 at 3:20 pm #46934
It wouldn’t make any sense to turn off the ATSC 1.0 and go directly to 3.0 would it. So yes nearly all these new “Next Generation” ATSC 3.0 facilities are in addition to their ATSC 1.0.June 24, 2020 at 8:12 pm #46937
If you want to spend an interesting hour or so, search the web for NextGen (or ATSC3 or ATSC 3.0) receivers. Especially try to get Samsung or Best Buy to tell you which of their receivers will decode a NextGen signal. It’s hard enough to find out whether or not a DTV receiver has a RF input, much less what signal it will decode.
The conclusion I came to is that while the broadcasters are excited about NextGen, the receiver makers/dealers mostly don’t know it exists. Until that changes, NextGen is doomed.
Surely before a broadcaster puts down real money to put up a NextGen signal, s/he must have some assurance of receiver availability. The situation is presently so disconnected, I’ve been awaiting events.June 24, 2020 at 8:14 pm #46938
Just to clarify.
VHF Stations KPTV and KOPB do have companion UHF Channels. KPTV was assigned UHF channel 30 during digital transition. In 2009 KPTV went back to channel 12. Then KPDX was moved to 30 channel. KPDX will convert to ATSC 3.0 lighthouse station soon.
KOPB was also assigned to UHF Channel 27 during the digital transition. When KOPB moved back to channel 10. There UHF companion channel lay dormant for the next 10 years. OPB should be able to bring that signal back up at anytime.
KGW doesn’t have a full power companion channel in UHF band. Yes they do have KGWZ-LD on channel 23. But it is consider a low power station. KGW needs to be in UHF band. If there going convert to ATSC 3.0 in the next five years.August 17, 2020 at 7:07 pm #47476
A new lower power in station in San Francisco KDTS-LP. Is conducting test on RF UHF 14 from Sutro Tower at 15 kW ERP. Every odd minute from 10:01 AM until 1PM the transmitter is on. Every even minute the transmitter is off.
This is being done to make sure Land Mobile users. Aren’t experiencing an interference problems from the station. KDTS-LP does have a huge waveguide filter with steep cutoff below 470 MHz. As a way to fine tune the signal. Also if needed the station can reduce it’s overall power levels.
Historically UHF 14 in the Bay Area has been used by full power Pubcaster KCSM-TV and later Univison owned KDTV-TV. The local ION station was to be assigned to that channel after repack. After finding a high power digital station would not work there.August 18, 2020 at 12:12 am #47477semoochieParticipant
Without a local connection of some kind, the previous post is iffy in this section of the site, even as a separate topic. “Politics and Other Things” is probably the best place for it.
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