But only under the pie chart. Free+Total still adds up to 4GB (3.81GB + 199MB at the moment)

So yeah, someone probably added the new math in the wrong place.

Grandparent is absolutely right in any real network. I've done this for a living, twice.

In any real network, packet loss is not zero. Packet loss happens for any number of reasons, including, as has been pointed out, congestion. In fact, the guys doing TFRC determined that the throughput of tcp is approximately:

Throughput = 1.3 * MTU / (RTT * sqrt(Loss))

Note well that window size is not a term in that equation. Bandwidth of the link isn't either, though obviously that's an upper limit.

It's true that bandwidth and CWND/RTT are upper bounds, but with any WAN latency you're likely to run into the above first.

Because this is wrong. The only channels being "evacuated" are the "out-of-core" UHF channels 52 and higher.

Maybe not wrong, but I'll give you incomplete. It is a complex situation No VHF spectrum is being freed up. 51 and higher have been auctioned off.

DTV is, by and large, not on the channel, transmitter, or antenna that it will be using after the transition. In many cases the final digital channel is currently occupied by an analog transmitter.

My impression was that the normal case would be the "even more bizarre" situation you describe, but that seems not to be the case, and often the post-transition digital allocation is currently occupied by another station's analog signal. Looking here: http://www.rabbitears.info/dtr.php it appears to be common, but not the norm.

This is why there had to be a single cutoff date, and why the 'nightlight' proposal was so brain-damaged.

Need I point out that Pedantic-Man(nominative use, forget your silly glyphs) got the definition of ® wrong?

There's a hint in the entity name, it's REGistered trademark. "All Rights Reserved" is copyright language, nothing to do with trademarks.

So you should be pushing *for* the transition. Once the DTV signals move onto the existing analog channels, you'll be in good shape.

I don't know why this is so hard to communicate, but nobody seems to get it. It's the UHF spectrum where the DTV signals are now that is being freed up, not the current VHF channels.

The temporary, low power, inferior antenna DTV signals are going away. Judge your likely post-transition digital reception based on your current analog reception, not your current digital reception.

There is a power savings, but you're looking a the wrong number.

It's that 1.5GW that will go away, as stations turn off their temporary DTV facilities and begin broadcasting DTV on their main transmitter/antenna sets.

At least I don't see any mention of the 'nightlight' program in TFA, which was brain-damaged. If you have to keep the analog station up broadcasting the 'nightlight', you can't use that channel for DTV.

...did they find TMA-1?

I mean, we *know* where the Apollo sites are supposed to be.