Retro(1G) vs Modern(4G) Cellphone Teardown - The Electronics Inside 

The manufacture of this cellphone was Novatel. I believe this is Model 8300, the 2883 written on the TX shield was an internal number to NovAtel. You are missing a speaker box or cradle that was the phone ringer. The SIP package on the transmitter PCB is a power control module for 8 different power outputs from 5 mW - 3 W. This model had both rx and tx in the 800MHz band. Another model for Europe worked in the 900 MHZ band.The yellow wire was used to run a horn relay so you could hear your phone ring, when your car was parked. Main headquarters were located in Calgary Alberta, Canada.

An antenna *can* be 1/2 the size of the wavelength, but also 1/4 wavelength resonance is very popular...but that's not entirely the answer to the "1 inch antenna". GSM in the US uses 1900 MHz-ish as well as 850MHz-ish. A 1/4 wavelength at 1900 MHz is still around 4cm in length, which is about an inch and a half. 850MHz is about 35cm. So, how do they do it? They use fractal antennas for wideband resonance. A fractal leverages area moreso than length (well, it condenses length into area). I've seen a few different varieties, even Sierpenski carpets. Usually designers will favor using pass/notch filtering for each of the modules needing RF and just use one main antenna for all three.

My step-dad had a car phone in his Mercedes Benz back in the 80s, and that looks very familiar.

The eeprom is where the number for the phone was coded in. No SIM card for 1G.

GSM is not a general term, its for 2G

would be nice to see another video with this. Taking the guts out of the modern phone, putting them into the old one and somehow getting the handset to make phone calls. Imagine walking around with that and talking on the phone...

Incredible! Element14 is the best.

I think you should have done a little more to taking apart the newer cellphone

That last pin is probably a park/neutral switch to keep drivers from making/receiving calls while driving

Nice

appriciate 👍

The last pin/connector thing is for powering the motor of the antenna to pop-it-up.. or something like that

I don't mean to be pedantic but that looks like an EPROM and not an EEPROM

My guess for the last wire would be to attach to the main car antenna...

I just watched the movie "twins" yesterday from '88 and they used a car phone I was wondering how it worked less than 24 hours ago. weird.

A good comparison video. Thanks. As you say, there's not much romanticism in an SOC solution. And you're not going to discover how it works either.

And don’t forget the channel hoping they used 😏

I think that the MOTOROLA Version was better I think as I friend would only go for the very best he could get.

A kid in my school had a 1g phone and the sim card was like a credit card. Then I remember another kid getting the Nokia rinGo and it blew my mind

Sin Dragan HAHAHAHA

5G cancer

FIrst!!

Childish destructive disassembly... Disgusting, really....