HN Theater @HNTheaterMonth

Once the 3G network is dead we can reuse that low-freq bands for 5G with similar range. You only use the high-freq high-bandwidth radios in populated areas.

https://youtu.be/0faCad2kKeg this is Wendover Productions explanation of cell service, there's an error regarding ultra high-freq when he means ultra low-freq, other than that it's a good explanation of how RF works.

An important bit here is that 3G is 16 combinations and 5G is 1000+, this is why it's important to deprecate old tech, we need to reuse frequencies.

⬐ hilbert42

As I said in another post about this video, it loses all credibility in the opening passages when it refers to the 'color' cyan and then proceeds to give the frequency of the so-called color down to the last cycle. I'd add that this error in in the opening commentary and is central to the propositions put forward

A similar error happens when the word 'magenta' is used instead of violet.

This wouldn't be so bad if say the video was about art and painting but it's inexcusable in one whose central theme is not only about frequency but also modulation/multiplexing.

Given the video's subject matter, how the author made such fundamental (and monumental) errors is quite puzzling.

⬐ hilbert42

Oh dear....

There are some good bits to this video but it instantly loses credibility when it gives a single frequency right down to a cycle to the 'color' cyan. The announcer then proceeds to discuss the wavelength (singular) of the 'color' purple when he should have said violet. When discussing purple the screen flashes up with a very reddy magenta which the video uses as an example.

This is all the more horrifying given that the principal part of his talk is about RF carriers and modulation systems on said carriers for cell phones.

I know things like this happen but one doesn't expect to see such a blatant example on HN.

⬐ hilbert42

I should have been more succinct here, as cyan is loosely described in the texts as a mixture of blue and green (two frequencies) or a color somewhere between green and blue. The author could have avoided confusion by selecting say 'green'.

However, there's no confusion about purple - in the video shown as magenta instead of violet as it is not on the spectrum of true colors (it being a mixture of blue and red): https://en.m.wikipedia.org/wiki/Magenta.