Motorola DynaTAC

Last updated
DynaTAC
DynaTAC8000X.jpg
A DynaTAC 8000X; the first commercially available mobile phone from 1983.
Manufacturer Motorola
First released1983;41 years ago (1983)
Discontinued1994;30 years ago (1994)
Successor Motorola MicroTAC
Compatible networks Advanced Mobile Phone System or GSM on Ameritech
Form factor Brick
Dimensions10 in (250 mm) Height
Weight2.5 lb (1.1 kg)
Charging10 Hours
Display LED or vacuum fluorescent display
Data inputs Push-button
Made inU.S.
Electrical engineer Martin Cooper of Motorola made the first publicized handheld mobile phone call on a prototype DynaTAC model on April 3, 1973. This is a reenactment in 2007. 2007Computex e21Forum-MartinCooper.jpg
Electrical engineer Martin Cooper of Motorola made the first publicized handheld mobile phone call on a prototype DynaTAC model on April 3, 1973. This is a reenactment in 2007.

The DynaTAC is a series of cellular telephones manufactured by Motorola from 1983 to 1994. The Motorola DynaTAC 8000X received approval from the U.S. FCC on September 21, 1983. [1] A full charge took roughly 10 hours, and it offered 30 minutes of talk time. [2] It also offered an LED display for dialing or recall of one of 30 phone numbers. It was priced at US$3,995 in 1984, its commercial release year, equivalent to $11,716 in 2023. [3] DynaTAC was an abbreviation of "Dynamic Adaptive Total Area Coverage".

Contents

Several models followed, starting in 1985 with the 8000s and continuing with periodic updates of increasing frequency until 1993's Classic II. The DynaTAC was replaced in most roles by the much smaller Motorola MicroTAC when it was first introduced in 1989, and by the time of the Motorola StarTAC's release in 1996, it was obsolete.

History

The first cellular phone was the culmination of efforts begun at Bell Labs, which first proposed the idea of a cellular system in 1947, and continued to petition the Federal Communications Commission (FCC) for channels through the 1950s and 1960s, and research conducted at Motorola. In 1960, electrical engineer John F. Mitchell [4] [5] [6] became Motorola's chief engineer for its mobile communication products. Mitchell oversaw the development and marketing of the first pager to use transistors.

Motorola had long produced mobile telephones for cars that were large and heavy and consumed too much power to allow their use without the automobile's engine running. Mitchell's team, which included Martin Cooper, developed portable cellular telephony, and Mitchell was among the Motorola employees granted a patent for this work in 1973; the first call on the prototype was completed, reportedly, to a wrong number. [7]

Motorola announced the development of the Dyna-Tac in April 1973, saying that it expected to have it fully operational within three years. Motorola said that the Dyna-Tac would weigh 3 pounds (1.4 kg) and would cost between $60 and $100 per month. Motorola predicted that the cost would decrease to $10 or $12 per month in no more than 20 years. Motorola said that, while the Dyna-Tac would not use the same network as the existing mobile service network, it anticipated resolving this so that all mobile devices would use the same network by around 1980. [8] By 1975, Motorola's expectations had changed; the Dyna-Tac was anticipated to be released to the public by 1985 because of U.S. Federal Communications Commission proceedings. [9]

While Motorola was developing the cellular phone itself, from 1968 to 1983, Bell Labs worked on the system called AMPS, while others designed cell phones for that and other cellular systems. Martin Cooper, a former general manager for the systems division at Motorola, led a team that produced the DynaTAC 8000X, the first commercially available cellular phone small enough to be easily carried, and made the first phone call from it. Martin Cooper was the first person to make an analog cellular mobile phone call on a prototype in 1973.

The Motorola DynaTAC 8000X was very large compared to phones today. This first cell phone was very expensive when it was released in the US in 1984. The DynaTAC's retail price, $3,995 (about $11,700 in 2023), [3] ensured that it would not become a mass-market item (the minimum wage in the United States was $3.35 per hour in 1984, which meant that it required more than 1192 hours of work – more than 7 months at a standard 40-hour work week – just working for the phone, without taxes); [10] by 1998, when Mitchell retired, cellphones and associated services made up two thirds of Motorola's $30 billion in revenue. [11]

On October 13, 1983, David D. Meilahn placed the first commercial wireless call on a DynaTAC from his 1983 Mercedes-Benz 380SL to Bob Barnett, former president of Ameritech Mobile Communications, who then placed a call on a DynaTAC from inside a Chrysler convertible to the grandson of Alexander Graham Bell, who was in Germany for the event. [12] The call, made at Soldier Field in Chicago, is considered to be a major turning point in communications. Later, Richard H. Frenkiel, the head of system development at Bell Laboratories, said about the DynaTAC: "It was a real triumph; a great breakthrough." [13]

Publications

U.S. Patent 3,906,166, September 16, 1975 for a Radio Telephone System for the first cell phone was granted by Martin Cooper, Richard W. Dronsurth, Albert J. Leitich, Charles N. Lynk, [14] James J. Mikulski, [15] [16] John F. Mitchell, Roy A. Richardson, and John H. Sangster.

Two names were botched in the original filing; Leitich's surname was erroneously omitted, and 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 Mikulski, which were rejected by Mitchell for lack of sufficient business justifications. It is rumored that when Mitchell suddenly recognized during an attempted phone call that his 400 MHz phone had inherent limitations, he immediately reversed his previous decision and championed the portable cell phone concept. [16]

Description

Several prototypes were made between 1973 and 1983. The product accepted by the FCC weighed 28 ounces (790 g) and was 10 inches (25 cm) high, not including its flexible "rubber duck" whip antenna. In addition to the typical 12-key telephone keypad, it had nine additional special keys:

It employed some of the technology previously used in the ALOHAnet system, including metal–oxide–semiconductor (MOS) transceiver and modem technology. [17]

Variants

The DynaTAC 8 Series, Classic, Classic II, Ultra Classic, and Ultra Classic II had an LED display, with red LEDs; the DynaTAC International Series with green LEDs, and the DynaTAC 6000XL used a vacuum fluorescent display. 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. [18] While still retaining the DynaTAC name, the 6000XL was completely unrelated to the DynaTAC 8000 Series, in that it was a transportable phone meant for installation in a vehicle. The 6000XL was later reconfigured as the Motorola Tough Talker, with a ruggedized build intended for construction sites, emergency workers, and special events planners. [19] [20]

The DynaTAC Series was succeeded by the MicroTAC Series in 1989.

Legacy

With the removal of analog network cells nearly all over the world, the DynaTAC models running on AMPS or other analog networks are mostly obsolete. Thus, they are more collectors' items than usable cellphones. The International series, however, will still work, but only on GSM 900 cells.

The DynaTac 8000X, due to its resemblance in size and weight to a standard clay-fired brick, was nicknamed the brick phone by users, [21] a term later applied to other brands as a contrast to smaller handsets appearing in the 1990s. [22]

Portability

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 8000X was 10 inches (25 cm) long and weighed 2.5 pounds (1 kg). [23] It 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.

Accessories

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. In some cases, this could cause major problems with the battery, occasionally short circuiting it and rendering it unusable. Also, charging the battery at a high enough rate to substantially raise its temperature will cause the battery to wear at an accelerated rate, reducing the number of charge-discharge cycles that can be performed before the battery will need to be replaced. (However, considering the high cost of the DynaTAC, the cost of battery replacement would not typically be a concern to DynaTAC owners.)

Available, too, was a snug-fitting zippered leather case which covered the entire body of the phone and had a clear plastic front to make the user interface accessible. It featured a sturdy spring-steel belt clip and a small cutaway at the top to allow the antenna to protrude. Charging could still be performed with the cover on, but change of battery required its removal.

DynaTAC relates to US phones used on the DynaTAC system in the US, not phones in use in the UK.

See also

Related Research Articles

<span class="mw-page-title-main">Advanced Mobile Phone System</span> Analog mobile phone system standard

Advanced Mobile Phone System (AMPS) was an analog mobile phone system standard originally developed by Bell Labs and later modified in a cooperative effort between Bell Labs and Motorola. It was officially introduced in the Americas on October 13, 1983, and was deployed in many other countries too, including Israel in 1986, Australia in 1987, Singapore in 1988, and Pakistan in 1990. It was the primary analog mobile phone system in North America through the 1980s and into the 2000s. As of February 18, 2008, carriers in the United States were no longer required to support AMPS and companies such as AT&T and Verizon Communications have discontinued this service permanently. AMPS was discontinued in Australia in September 2000, in India by October 2004, in Israel by January 2010, and Brazil by 2010.

<span class="mw-page-title-main">Motorola</span> American telecommunications company (1928–2011)

Motorola, Inc. was an American multinational telecommunications company based in Schaumburg, Illinois. It was founded in 1928 as Galvin Manufacturing Corporation by brothers Paul and Joseph Galvin. The company changed its name to Motorola in 1947. After having lost $4.3 billion from 2007 to 2009, Motorola was split into two independent public companies, Motorola Mobility and Motorola Solutions, on January 4, 2011. The reorganization was structured with Motorola Solutions legally succeeding Motorola, Inc., and Motorola Mobility being spun off.

<span class="mw-page-title-main">Telephone</span> Telecommunications device

A telephone, colloquially referred to as a phone, is a telecommunications device that enables two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via cables and other communication channels to another telephone which reproduces the sound to the receiving user. The term is derived from Ancient Greek: τῆλε, romanized: tēle, lit. 'far' and φωνή, together meaning distant voice.

<span class="mw-page-title-main">Car phone</span> Telephone intended to be used in a car


A car phone is a mobile radio telephone specifically designed for and fitted into an automobile. This service originated with the Bell System and was first used in St. Louis, Missouri, on June 17, 1946.

<span class="mw-page-title-main">Landline</span> Physical telephone connection

A landline is a telephone connection that uses metal wires from the owner's premises also referred to as: POTS, Twisted pair, telephone line or public switched telephone network (PSTN).

<span class="mw-page-title-main">Mobile telephony</span> Provision of telephone services to phones

Mobile telephony is the provision of wireless telephone services to mobile phones, distinguishing it from fixed-location telephony provided via landline phones. Traditionally, telephony specifically refers to voice communication, though the distinction has become less clear with the integration of additional features such as text messaging and data services.

1G refers to the first generation of mobile telecommunications standards, introduced in the 1980s. This generation was characterized by the use of analog audio transmissions, a major distinction from the subsequent 2G networks, which were fully digital. The term "1G" itself was not used at the time, but has since been retroactively applied to describe the early era of cellular networks.

<span class="mw-page-title-main">History of mobile phones</span> Mobile communication devices

The history of mobile phones covers mobile communication devices that connect wirelessly to the public switched telephone network.

In the U.S., Federal Communications Commission (FCC) regulations prohibit the use of mobile phones aboard aircraft in flight. Contrary to popular misconception, the Federal Aviation Administration (FAA) does not actually prohibit the use of personal electronic devices on aircraft. Paragraph (b)(5) of 14 CFR 91.21 permits airlines to determine if devices can be used in flight, allowing use of "any other portable electronic device that the operator of the aircraft has determined will not cause interference with the navigation or communication system of the aircraft on which it is to be used."

<span class="mw-page-title-main">Motorola International 3200</span> First digital hand-held mobile telephone

The Motorola International 3200 was the first digital hand-held mobile telephone introduced in 1992, along with the more compact 5200, 5080, 7200 and 7500 "flip phones" introduced in 1994. It was preceded by the International 1000 and 2000 GSM phones, quite big, and although being the first GSM portable phones, they were not GSM certified, therefore couldn't be officially connected to the network.

A mobile phone operator, wireless provider, or carrier is a mobile telecommunications company that provides wireless Internet GSM services for mobile device users. The operator gives a SIM card to the customer who inserts it into the mobile device to gain access to the service.

<span class="mw-page-title-main">Motorola StarTAC</span> Mobile phone

The StarTAC is a series of mobile phones released by Motorola starting in 1996. It is the successor of the MicroTAC, a semi-clamshell design first launched in 1989. Whereas the MicroTAC's flip folded down from below the keypad, the StarTAC folded up from above the display. The StarTAC was among the first mobile phones to gain widespread consumer adoption; approximately 60 million StarTACs were sold.

<span class="mw-page-title-main">Martin Cooper (inventor)</span> American engineer (born 1928)

Martin Cooper is an American engineer. He is a pioneer in the wireless communications industry, especially in radio spectrum management, with eleven patents in the field.

<span class="mw-page-title-main">Motorola MicroTAC</span> Cellular phone by Motorola

The Motorola MicroTAC is a cellular phone first manufactured as an analog version in 1989. GSM-compatible and TDMA/Dual-Mode versions were introduced in 1994. The MicroTAC introduced a new "flip" design, where the "mouthpiece" folded over the keypad, although on later production the "mouthpiece" was actually located in the base of the phone, along with the ringer. This set the standard and became the model for modern flip phones today. Its predecessor was the much larger and heavier Motorola DynaTAC "brick" phone, and it was succeeded by the Motorola StarTAC in 1996. "TAC" was an abbreviation of "Total Area Coverage" in all three models.

<span class="mw-page-title-main">Motorola bag phone</span> Colloquial name for a line of Motorola cellphones

The Motorola bag phone is the colloquial name for a line of personal transportable cellular telephones manufactured by Motorola, inc. from 1988 to 2000.

<span class="mw-page-title-main">Mobile phone</span> Portable device to make telephone calls using a radio link

A mobile phone, or cell phone, is a portable telephone that allows users to make and receive calls over a radio frequency link while moving within a designated telephone service area, unlike fixed-location phones. This radio frequency link connects to the switching systems of a mobile phone operator, providing access to the public switched telephone network (PSTN). Modern mobile telephony relies on a cellular network architecture, which is why mobile phones are often referred to as 'cell phones' in North America.

<span class="mw-page-title-main">Arlene Harris (inventor)</span> American inventor

Arlene Joy Harris is an entrepreneur, inventor, investor, and policy advocate in the telecommunications industry. She is the president and co-founder of Dyna LLC, an incubator for start-up and early-stage organizations historically in the wireless technology field. Harris is widely recognized as a pioneer in mobile and wireless enterprise and an innovator of consumer products and services. In May 2007, she became the first female inductee of the Wireless Hall of Fame, and was named to the Consumer Technology Hall of Fame in 2017.

<span class="mw-page-title-main">John Francis Mitchell</span> American electronics engineer

John Francis Mitchell was an American electronics engineer and president and chief operating officer of Motorola.

CyberTel Cellular was an early St. Louis-based cellular telecommunications company. CyberTel's first cellular tower in St. Louis became operational on July 16, 1984.

References

  1. ↑ "Motorola DynaTAC 8000X". Motorola Mobility 2011. Archived from the original on 2013-07-02. Retrieved 2014-08-19.
  2. ↑ "The History of Mobile Phone Technology". RedOrbit.
  3. 1 2 1634–1699: McCusker, J. J. (1997). How Much Is That in Real Money? A Historical Price Index for Use as a Deflator of Money Values in the Economy of the United States: Addenda et Corrigenda (PDF). American Antiquarian Society. 1700–1799: McCusker, J. J. (1992). How Much Is That in Real Money? A Historical Price Index for Use as a Deflator of Money Values in the Economy of the United States (PDF). American Antiquarian Society. 1800–present: Federal Reserve Bank of Minneapolis. "Consumer Price Index (estimate) 1800–" . Retrieved February 29, 2024.
  4. ↑ John F. Mitchell Biography
  5. ↑ The Top Giants in Telephony Archived 2013-01-17 at the Wayback Machine
  6. ↑ Who invented the cell phone?
  7. ↑ Miller, Stephen (June 20, 2009). "Motorola Executive Helped Spur Cellphone Revolution, Oversaw Ill-Fated Iridium Project". Wall Street Journal. Archived from the original on April 20, 2016. Retrieved August 2, 2021.
  8. ↑ Corya, Robert (April 5, 1973). "Portable Phone Here: Motorola". The Indianapolis News (Indianapolis, Indiana). p. 56.
  9. ↑ Moeller, Phillip (August 27, 1975). "Red Tape Holds Up Portable Phones". Chicago Sun-Times. The Gazette (Montreal, Quebec). p. 26.
  10. ↑ "1984 United States Minimum Wage in Today's Dollars".
  11. ↑ John F. Mitchell, Time Magazine Milestones section, July 6, 2009, p.17
  12. ↑ Channick, Robert (October 13, 2023). "A suburban Chicago insurance agent won a contest 40 years ago to make the first commercial cellular call. He's still on the phone". Chicago Tribune . Retrieved October 18, 2023.
  13. ↑ Oehmke, Ted (January 6, 2000). "Cell Phones Ruin the Opera? Meet the Culprit". The New York Times. Retrieved 2009-05-26.
  14. ↑ Letter to Middle Schooler, granddaughter of Chuck Lynk, co-inventor of cell phone [ permanent dead link ], by James J. Mikulski, co-inventor of first cell phone April 3, 1973
  15. ↑ Comments by Albert (Jim) Mikulski, co-inventor of first cell phone, June 6, 2009, Chicago Tribune (a):"Mitchell known as a hands on manager" (b): (c): (e): (f): (g): "willing to give credit to those who worked in the trenches." (c): (d): "I remember his delegating his task as...GM to work in the Applied Research Lab and in give and take with the engineers as the Federal Trade Commission (FTC) docket 18262 that would shape Motorola's future...in the 1970s." (h): Mitchell team member, (i) patent holder Archived February 7, 2012, at the Wayback Machine
  16. 1 2 Discontinuance of Product Line, Business Case Study Cell Phone [ permanent dead link ]; Macher, Jeffrey; Richman, Barak D. (2004). "Organizational Responses to Discontinuous Innovation: A Case Study Approach". International Journal of Innovation Management. 7 (1). SSRN   485282.
  17. ↑ Fralick, Stanley C.; Brandin, David H.; Kuo, Franklin F.; Harrison, Christopher (May 19–22, 1975). Digital Terminals For Packet Broadcasting (PDF). AFIPS '75. American Federation of Information Processing Societies. doi:10.1145/1499949.1499990. Archived (PDF) from the original on November 16, 2019.
  18. ↑ "20th Anniversary of the World's First Commercial Cellular Phone". Motorola. Archived from the original on 2007-02-19. Retrieved 2007-06-07.
  19. ↑ Scott, Matthew (August 1988). "Have Portable, Will Travel in the Cellular Phone Market". Black Enterprise. 19 (1). Earl G. Graves Publishing Company: 39 – via Google Books.
  20. ↑ Marek, Sue (January 1993). "Rugged & powerful". Cellular Marketing. 81 (1). Penton Media: 18 – via Gale OneFile.
  21. ↑ Nellis, Blake (March 2, 2015). "The Evolution of the Cell Phone". The Technocrat. The Montana Standard (Butte, Montana). p. T6.
  22. ↑ Nicola Green, Leslie Haddon (2009). Mobile Communications: An Introduction to New Media. p. 20.
  23. ↑ Molina, Brett (April 4, 2013). "Mobile Phone at 40: One Long Shrinkage Spurt". USA Today. Honolulu Star-Advertiser (Honolulu, Hawaii). p. A6.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.