Motorola MicroTAC owner manual Reference

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Reference

It is possible that exposing the test cells to radiation for this long resulted in heating. Since this assay is known to be sen- sitive to heating, heat alone could have caused the abnor- malities to occur. The data already in the literature on the response of the micronucleus assay to RF are conflicting. Thus, follow-up research is necessary.

FDA is currently working with government, industry, and acad- emic groups to ensure the proper follow-up to these industry- funded research findings. Collaboration with the Cellular Telecommunications Industry Association (CTIA) in particular is expected to lead to FDA providing research recommendations and scientific oversight of new CTIA-funded research based on such recommendations.

Two other studies of interest have been reported recently in the literature:

1.Two groups of 18 people were exposed to simulated mobile phone signals under laboratory conditions while they per- formed cognitive function tests. There were no changes in the subjects' ability to recall words, numbers, or pictures, or in their spatial memory, but they were able to make choices more quickly in one visual test when they were exposed to simulated mobile phone signals. This was the only change noted among more than 20 variables compared.

2.In a study of 209 brain tumor cases and 425 matched con- trols, there was no increased risk of brain tumors associated with mobile phone use. When tumors did exist in certain locations, however, they were more likely to be on the side of the head where the mobile phone was used. Because this occurred in only a small number of cases, the increased likelihood was too small to be statistically significant.

In summary, we do not have enough information at this point to assure the public that there are, or are not, any low incident health problems associated with use of mobile phones. FDA continues to work with all parties, including other federal agencies and industry, to assure that research is undertaken to provide the necessary answers to the outstanding questions about the safety of mobile phones.

What is known about cases of human cancer that have been reported in users of hand-held mobile phones?

Some people who have used mobile phones have been diag- nosed with brain cancer. But it is important to understand that this type of cancer also occurs among people who have not used mobile phones. In fact, brain cancer occurs in the U.S. population at a rate of about 6 new cases per 100,000 people each year. At that rate, assuming 80 million users of mobile phones (a number increasing at a rate of about 1 million per

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Contents L L U L a R Need a large print version of this manual? Table of Contents Storing an Area Code and Prefix Postscripting Advanced Memory Dialing FeaturesStoring Numbers in Memory Placing Calls From MemorySpecial System Features Special Call FeaturesCellular System Information Using the Feature MenuCall Timers Security FeaturesReference TroubleshootingReviewing / Changing Scanning Mode Programming Scanning ModesIntroduction Vii Viii Introduction ➋ Earpiece ➌ Status Indicators Controls and Indicators➎ Dedicated One Touch Memory Buttons Xii Getting Started Prepare the Battery for Initial UseTurn your phone off Attach the BatteryRemove the Battery Lift the battery offQuick-Change Battery Removal/Replacement Using Plug-In ChargersStart-up Self Tests Basic OperationAbout the Antenna Turning Phone On and OffRM Roam Indicator Start-up Status IndicatorsIU In Use Indicator NS No Service IndicatorIf Entering More Than 10 Digits To Correct an ErrorWith power on, enter the number you wish to call Placing a CallAutomatic Redialing Ending a Call Receiving a CallPress END or close the keypad cover Signal Strength Meter Call In Absence IndicatorLow Battery Warning Volume MeterAdjusting Earpiece Volume Adjusting Ringer VolumePress FCN Battery Voltage MeterEtc Location entered is displayed to confirm storage Storing Numbers in MemoryAbout Memory Storing a Phone NumberEtc Memory Protect FeatureStoring an Area Code and Prefix Postscripting Enter the area code and prefix you wish to store Press STOChanging a Memory Entry Deleting a Memory EntryPlacing Calls From Memory About Recalling from MemoryPlacing Calls by Entering Two-Digit Number Placing Calls by Scrolling Recalling Area Code and Prefix Postscripting Advanced Memory Dialing FeaturesLast Number Redial Recalling Last Number CalledDeleting One Touch Dialing Numbers Turbo Dial FeatureStoring a One Touch Dialing Number Displaying One Touch Dialing NumbersPriority Call Scratch Pad Memory Super Speed Dial FeatureMemory Linking Two-Part Tone DialingInstruction and Key Sequence Display Example of Memory LinkingPress RCL , SND to send each remaining number group Initial call by pressing RCL , 0 SND . WhenAutomatic Answer Special Call FeaturesDisplay Own Phone Number Microphone MutingMultiple Key Answer Hands Free OperationDistinctive Ringer Extended Talk Time Multiple Language DisplayReceiving Calls with Calling Line ID Special System FeaturesAbout Special System Features Calling Line IDPlacing a Call to a Calling Line ID Number Recalling/Viewing Calling Line ID MessagesDeleting All Messages Other Messaging ServicesStoring a Calling Line ID Number in Memory Deleting an Individual MessagePIN Code Operation Placing a Call using PIN OperationVOX Operation Reminder BeepsSpecial System Features Using the Feature Menu About the Feature MenuSelecting and Deselecting Features Multiple Key Answer One Minute BeepDistinctive Ringer Automatic AnswerReminder Beeps VOX modePriority Call Extended Talk TimePIN Code Operation Calloff Status ReviewResettable Call Timer Call TimersAbout Timers Individual Call TimerAutomatic Display Timer To Lock Security FeaturesAbout Security Codes Electronic LockAutomatic Lock Setting Outgoing Call RestrictionsDisplaying the Unlock Code Changing the Unlock CodeSecurity Features Cellular System Overview Service AreaWeak Signal Alert Cellular System InformationRoaming Switchhook and Advanced System ServicesSystem Type and Phone Number Display Two-System OperationOverview Reviewing / Changing Scanning ModeTo Review Scanning Mode Programming Scanning ModesScanning Modes Programming Scanning Modes Preferred SID ModeBefore Calling For Service TroubleshootingTroubleshooting Reference Regulations and PrecautionsReference Cumul Message GlossaryFull REMind MSgOFF Reminder Beeps feature disabled REMind MSg On Index Reference Reference Reference Why the concern? Reference Reference Reference Where can I find additional information? Patent Information PAT02250 Quick Reference Card Rbrc

MicroTAC specifications

The Motorola MicroTAC, introduced in 1989, is an iconic mobile phone that set the stage for the evolution of modern cellular technology. Known for its innovative design, the MicroTAC was one of the first truly portable mobile phones, demonstrating how far telecommunications had come since the bulky models of earlier decades.

One of the standout features of the MicroTAC was its flip design, which allowed the phone to be compact when closed and easy to carry. When opened, the phone revealed a numeric keypad and a small monochrome display, which provided essential functions and caller ID information. This flip mechanism not only contributed to its portability but also protected the keypad and screen from damage when not in use.

The MicroTAC was notable for its lightweight plastic casing, which made it significantly lighter than its contemporaries. Weighing just under 250 grams, it was a remarkable feat of engineering at the time. The phone had a unique “antenna-in-handle” design, which contributed to its sleek appearance while also optimizing signal reception. This innovation was part of Motorola’s effort to make mobile communication accessible and convenient.

In terms of battery life, the MicroTAC featured a rechargeable NiCd battery that provided several hours of talk time. While modern smartphones boast days of battery life, the MicroTAC was considered admirable for its time, allowing users the freedom to communicate on the go without frequent recharges.

The Motorola MicroTAC operated on analog networks, specifically using the Advanced Mobile Phone System (AMPS). This technology allowed for a clearer voice transmission and was crucial in the early days of mobile communication, enabling users to connect in various environments where fixed lines were impractical.

Additionally, the MicroTAC boasted features like call waiting, auto redial, and a phone book capable of storing multiple contacts—a considerable leap forward from earlier mobile devices.

Despite its simplicity compared to modern smartphones, the Motorola MicroTAC laid the groundwork for future mobile technologies and design principles. Its combination of portability, innovative engineering, and user-friendly features solidified Motorola's reputation as a leader in telecommunications. The MicroTAC remains a nostalgic symbol of the early mobile telephony era and a testament to the foundational technologies that paved the way for today's devices.