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1940's ERA celular telephone...

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BrianHG:
Yes, it really did exist.



LOL: At the end I like how they show the car install and called that 'compact' or the need for a second car battery for extra power for the transmitter...

At least it was FM modulated.

Halcyon:
Radiotelephones were considered 0G technology. That paved the way for AMPS which was basically considered 1G, before the introduction of GSM and CDMA (2G) which was digital.

There are a bunch of interesting historical videos on the AT&T Tech Channel on YouTube.

ebastler:

--- Quote from: BrianHG on January 16, 2023, 04:50:13 pm ---Yes, it really did exist.

--- End quote ---

Nice video, thanks!

I am not sure whether this qualifies as a "cellular phone system" yet? While there obviously were local "cells" defined by the reach of the radio towers, there was no automatic locating and hand-over service: If you wanted to call a mobile station, you needed to know which base station's reach they were in, and if they moved out of reach during a call, the call would be dropped.

In Germany, the transition to a proper cellular system only began in 1984, with the "C-Netz". It allowed you to reach a mobile station country-wide under one fixed phone number, and would hand over calls from cell to cell when the station was moving. Both the C-Netz and the B-Netz which it replaced were analog systems, hence are considered 1G systems in the nomenclature Halcyon mentioned.

pcprogrammer:
It is nice to see this old material preserved. Loved how it started a bit like a cartoon with the music used. Also nice "advanced" split screen and overlay technology used to make it  :)

Indeed the remark near the end when they install the units for transmission and reception and call it compact, very funny.  :-DD

Wonder if it was capable of handling more then one call at a time on the same station?

Stray Electron:

--- Quote from: ebastler on January 19, 2023, 03:49:20 pm ---
--- Quote from: BrianHG on January 16, 2023, 04:50:13 pm ---Yes, it really did exist.

--- End quote ---

Nice video, thanks!

I am not sure whether this qualifies as a "cellular phone system" yet? While there obviously were local "cells" defined by the reach of the radio towers, there was no automatic locating and hand-over service: If you wanted to call a mobile station, you needed to know which base station's reach they were in, and if they moved out of reach during a call, the call would be dropped.

In Germany, the transition to a proper cellular system only began in 1984, with the "C-Netz". It allowed you to reach a mobile station country-wide under one fixed phone number, and would hand over calls from cell to cell when the station was moving. Both the C-Netz and the B-Netz which it replaced were analog systems, hence are considered 1G systems in the nomenclature Halcyon mentioned.

--- End quote ---

     It wasn't what I would consider Cellular Telephone but my father and my father in law both used radio telephones in the very early 1960s and they could have their calls routed to the normal land line telephone service and have the operator dial long distance numbers for them. So they could theoretically connect to just about any other telephone in the world at that time.   Yes, those connections and going through the operator and even the long distance calls were all expensive as hell but it could be done.  On very large projects being build for the US Gov like the DEW Line and Cheyenne Mountain and the original construction of Cape Canaveral, in Florida calls like that were frequently made from the field and back to the project management offices in Washington DC and to equipment suppliers in order to avoid extremely expensive construction delays.  I remember one of my father's coworkers making a call from Florida to England in about 1962? that lasted for about 20 minutes and that cost well over $1000. (in 1962 dollars!)

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