Facing corporate oblivion, Motorola executive Marty Cooper had a brainstorm: Let's prove to the FCC that a cellular monopoly would inhibit hardware innovation.

What would Motorola's innovation be? A rival cellular network with a handheld phone at its center. Cooper told his engineers to drop everything.

Looking back on 40 years of the cell phone

On Dec. Since there was no actual cellular network built yet, these first two DynaTACs were actually fancy MHz cordless phones. Here are the full details of the complete whirlwind DynaTAC development process. Fortunately for Motorola, it took nearly 10 years for the FCC to get its cellular regulatory and licensing act together. Plus, the FCC was giving us all kinds of problems, so to design something we could manufacture sucked up 10 years. We were very busy.

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The most visible design change was re-arranging the two vertical rows of number buttons on the original DynaTAC to the more familiar three-by-four grid. Inside the phone, primary engineer Don Linder oversaw the development of custom integrated circuits and microprocessors — which were still a new product in the late s — as well as evolving antenna designs to better penetrate buildings and account for height changes during a call, all of which had to comply to ever-changing FCC spectrum specifications.

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Krolopp recalls the DynaTAC going through around eight different iterations. Leitich, Charles N. Lynk, [11] James J. Mikulski, [12] [13] [14] John F. Mitchell, Roy A. Richardson, and John H.

Looking back on 40 years of the cell phone

Two names were botched in the original filing; Albert Leitich's surname was erroneously omitted, and Dr. Mikulski's first name was omitted. The original document was refiled by Motorola's legal staff, but has not yet been identified. The seeds of the idea for a portable cell phone can be traced to Dr. James J. Mikulski, which were rejected by Mitchell for lack of sufficient business justifications. Several prototypes were made between and In addition to the typical key telephone keypad, it had nine additional special keys:.

These displays were severely limited in what information they could show. The battery allowed for a call of up to 60 minutes, after which it was necessary to charge the phone up to 10 hours in a trickle charger or one hour in a fast charger, which was a separate accessory.

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Thus, they are more collectors' items than usable telephones. The International series, however, will still work, but only on GSM cells. The DynaTac X, due to its resemblance in size and weight to a standard clay-fired brick , was nicknamed the brick phone by users, a term later applied to other brands as a contrast to smaller handsets appearing in the s.

While it might be considered extremely unwieldy by modern standards, at the time, it was considered revolutionary because mobile telephones were bulky affairs installed in vehicles or in heavy briefcases. The DynaTAC X was truly the first mobile telephone which could connect to the telephone network without the assistance of a mobile operator and could be carried about by the user. In certain markets, a brass swivel antenna was one of the aftermarket accessories then available. Motorola also offered a one-hour desktop charger, though the battery could get quite hot while charging at this accelerated rate.

Thanks, John. Does anyone knows the price of the microtac international when it was sold new?

Toy 1980s Style Vintage Brick Cell / Mobile Phone Prop – Motorola DynaTAC 8000x

I cannot find any information about this phone anywhere? Is it rare? Is it worth anything? I'd be interested to see what it looks like! Is it the all white one? Please keep up the good work. Brings all the memories of first generation cellular mobiles back. I remember moving to north Kent back in to get a job and sometimes people would be sitting on the train with a mobile phone and I was in awe. One day a regular guy who I always saw constantly talking into his phone dropped it on the platform and it broke in two It was a dummy phone, just a shell!!!

I bet the fake phone cost more than a real one does now. My first mobile was on the Cellnet network and it was a BT badged 'Pearl' handset.

There was an advert in The Independent newspaper and I reckoned I could afford it. It was and I was still trying to live the yuppie dream. I can remember my number even now, Wish I had kept the BT Pearl handset as a memento!!! If you are interested in more information about vintage mobile phones have a look at my new site www. Are you sure the phone was a Pearl, by the way. There is a picture of a woman using one on this page, half way down: www. The BT Cellnet system was switched on in the autumn of 84 for one week to cover Maggie hosting a G7 summit in central London before its true launch in Jan I was there had a motorola carphone in my car on the Monday morning and had arranged 12 appointments to pre-sell them to existing radiophone system 4 users.

I mad the first commercial call and sold the first commercial phone at 7. Its the very large type complete with carrying handle and flex. I remember swapping it for a motorola because the phone rang louder than Big Ben!.

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I charged it up at the weekend after spending 2 decades in the loft and the display came on and the speaker worked too. I"ve tried to find some info on the phone but nothing. Anybody know anything about it? I'm guessing this is a Mitsubishi Roamer. Its definately not one of those, mine does look a bit like the motorola unit, but its definately mitsubishi, and so is the charger. I have just found a photo on eBay of one like mine complete with the instruction book which says 'BT Pearl Cellphone User Guide' on the front.

You are absolutely right. BT must have recycled the name. There were several variations of this. The Pearl looks like rebadged Motorola flip phone without the flip. The x which transmitted 1. The telephone was used "Hands Free" and the battery of the x was charged while driving and using the system. I wondered if you could tell me approx what it might be worth please? I have plugged in the power box and it works and turns the phone on, although the phone is locked.

Any help would be appreciated - I have photos of it that I could send. I'm guessing it is large phone with a separate receiver attached. Some sellers are way too optimistic!