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Re:We all took the DVD boom era for granted by bombcar on Wednesday December 11, 2024 @11:10AM (#42389220)
A significant percentage of people alive today have never made an analog phone call, or know just how good (and low latency!) it was to literally have two copper wires connecting two phones thousands of miles apart.

Direct at the speed of light (almost)!

Re:We all took the DVD boom era for granted by dboreham on Wednesday December 11, 2024 @12:06PM (#42389998)
I'm skeptical there's anyone alive who made an analog phone call over thousands of miles. Local calls yes, but even so I'm pretty old and I never made one because I had no friends on the same CO as my parents' house.
Re:We all took the DVD boom era for granted by dsr_ on Wednesday December 11, 2024 @01:38PM (#42391160)
Hi, I'm alive.

East Coast of the US to London, UK, in the early 1980s. Over three thousand miles. Quite expensive. Quality was dreadful.

Re:We all took the DVD boom era for granted by kevin_thibedeau on Wednesday December 11, 2024 @01:57PM (#42391379)
Long distance between US coasts is thousands of miles.
Re:We all took the DVD boom era for granted by shiroiushi on Thursday December 12, 2024 @03:16AM (#42397284)
His point is that the long-distance connection has been digital for many decades now, even back in the 1980s according to one comment here.

He's being hyperbolic of course, since there's people in their 90s and 100s who made phone calls way back when you had to talk to the operator to place a long-distance call. But the general point is valid: how many people here actually remember the days when the connection was all-analog? You would have had to be making LD calls in the 1970s probably.

Re:We all took the DVD boom era for granted by KETHERCORTEX on Wednesday December 11, 2024 @11:33AM (#42389524)
As a side effect, they didn't see the trick with dialing a number just by quickly hitting the "receiver rest" lever.
Re:We all took the DVD boom era for granted by atmavatar on Wednesday December 11, 2024 @11:59AM (#42389875)
...or use a captain crunch whistle to get free long distance calls.
Re:We all took the DVD boom era for granted by gwbas1c on Wednesday December 11, 2024 @12:56PM (#42390632)
Long distance calls were all digital in 1980s, and probably sooner. (I don't know the exact timeframe when analog coax was replaced by T1s.)
Re:We all took the DVD boom era for granted by retrac on Thursday December 12, 2024 @10:44AM (#42400098)
Digitization started quite early (1960s) but it did not finish until decades later. The first transatlantic fibre optic cable was only laid in 1988. Before that communication between North America and Europe was analog. The Internet and other networks of that time linked over the Atlantic with modems over satellite or voice channels on the analog coaxial submarine cables.

TAT-7 - 4000 analog 3 kHz channels over coaxial, laid 1983

TAT-8 - 280 Mbit/s over fibre optic, laid 1988

Re:We all took the DVD boom era for granted by cogman10 on Wednesday December 11, 2024 @03:28PM (#42392565)
> just how good

No.

Analog copper signals are TERRIBLE. A big reason telecom was one of the first to embrace digital transmissions was due to all the quality issues of copper.

Yes, latency was low, but that was about the only thing going for it.

To get a clear signal over copper you NEED a very large amount of insulation, and that insulation needs to be through the entire circuit. Just one section with frayed plastic, ran too close to a powerline, or is passing under a thunderstorm would introduce all sorts of noise onto the line. The longer the distance, the bigger a problem this was.

Sure, some calls might have been clear, but a lot were utterly terrible.

Re:We all took the DVD boom era for granted by red369 on Wednesday December 11, 2024 @11:19PM (#42396183)
I wonder if some areas/countries had better quality phone lines. I'm not doubting you, but I didn't have this experience at all. Could have just been luck - I probably didn't call that many different people.

Of course, this only applied until I tried to make an overseas call - then it sounded like I was calling Mars.

Re:We all took the DVD boom era for granted by cogman10 on Thursday December 12, 2024 @09:31AM (#42399408)
Long distance pretty quickly adopted digital transmission. Unless you made calls in the 70s there's a pretty good chance you were just using digital calls which is why they were so clear.

If you go watch an old TV show with a long distance phone call (Comes up on MASH, for example, and the Twilight zone). You'll see people screaming into the phones. That was a pretty normal way to be heard as whispers simply couldn't be heard. Sending out a really strong vocal signal made it easier to hear that over the noise and pops.

Re:We all took the DVD boom era for granted by retrac on Thursday December 12, 2024 @09:41AM (#42399497)
Plenty of long distance circuits remained analog into the 90s, particularly the microwave relay tower networks in rural areas. They used all sorts of techniques to produce rather good results.

As an example, one game phone phreaks in the 70s would play is stacking very long lines back and forth. Route a call across the country, then back, then back again. You could do NY - SF four or five times with a circuit length of like 10,000 miles sometimes before the channel was unusable.

You are otherwise totally right about the potential distortion of a long distance analog circuit. Other times filters would be out of tune and you would hear the hundreds of other analog channels just murmuring in the background not quite discernible, and calling the next town over was almost impossible.

Screaming into the phone was more the pre-electronics era with carbon microphones. The original analog phone systems had no active amplification at all. Voice powered microphones were typical in the military until quite late - I think they still use them as backups on ships.

Re:We all took the DVD boom era for granted by omt123 on Friday December 13, 2024 @10:15AM (#42409160)
They are still used, as primary circuits for weapons elevators on carriers.
Re:We all took the DVD boom era for granted by HeyLaughingBoy on Thursday December 12, 2024 @04:50PM (#42403784)
Reminds me of the "hear a pin drop" Sprint commercials from the late 80's/early 90s.