... A web search tells me a good digital transmitter might be 45% efficient...

I'm not disagreeing with you, I'm trying to help you make your point. KASW's whack-a-mole transmitter has to produce about 24 kW of RF to put 20 kW up the pipe. The rest is spent on heating up the various on-board ...

If you go with the Shaw Butte location be sure your lease agreement covers whatever you intend to do now and in the future. The reason we killed the FSN up there was that the tower owner decided that even though we only had one transmitter operating on one channel, they decided that we owed them ...

I'm about 5 miles (NNW) from the channel 7 proposal in Phoenix but it looks like I may not even be able to pick it up due to the heart shaped pattern. I just got a smartkom, which actually helped me out with several channels, and it seems to be begging me to attach a low vhf antenna to one of ...

Just google it.
Samsung stopped putting 3.0 in their OLEDs a year or so ago. I think they still offer it in the QLED line.
LG also stopped a couple of years ago.

Nexgen Certified TV's have the requisite keys embedded into their firmware. Broadcasters publish their video so that it will respond to either type of DRM keys (embedded or internet). Your comments simply do not apply to the majority of OTA viewers who choose to view 3.0. For the tiny group of ...

The TV's can replace the static keys, if they get hacked. On board, there are 4 keys per group with 4 groups (16 keys). If necessary, any one group can be replaced by a firmware upload.
If the internet went out during a disaster, most likely the power would too, so who cares? If only a portion of ...