SGH-B510_Q
User’s Guide
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Some of the contents in this guide may differ from your phone depending on the software of the phone or your service provider.
Bluetooth QD ID: B0XXXXX
World Wide Web |
Printed in Korea |
Code No.: GH68-XXXXXA |
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http://www.samsungmobile.com |
English (EU). 02/2008. Rev.1.0 |
Silent mode
Keypad lock mode
SOS mode
Press and hold in Idle mode to disable all sounds on the phone. To exit, press and hold this key again.
When you close the phone, it locks the exposed keys to ignore accidental key pressing. To unlock, press the Unlock soft key and then .
With the phone closed, press the Volume keys 4 times when the keypad is locked to send an SOS message to preset numbers. Once the SOS message is sent, the phone will change to SOS mode and will receive calls only from the registered recipients. Upon receiving a call from the SOS message recipients, the phone will automatically answer the call. Press to exit SOS mode.
Display
Your phone is in Idle mode when you are not on a call or using a menu. You must be in Idle mode to dial a phone number.
Icons
Text and graphics
Menu |
Contacts |
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Soft key function indicators |
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Using the menus
In Idle mode, press the Menu soft key to enter the main menu.
Labels at the bottom corners of the display show the current soft key functions. Press the left soft key () or right soft key (
) to perform the function indicated.
To exit the menu without changing the menu settings, press this key.
Use the 4-way navigation keys as shortcuts to access your favourite menus. Up is fixed as a shortcut to My menu mode.
1.In Idle mode, press the Menu soft key.
2.Select Settings → Phone settings → Shortcuts.
3.Select a key.
4.Select a menu to be assigned to the key.
Installing the SIM card and battery
1. Remove the battery cover and insert the SIM card.
Battery cover
2. Install the battery and reattach the cover.
Battery
Your phone displays the following status indicators on the top of the screen:
Icon Description
Signal strength GPRS (2.5G) network
Connecting to GPRS (2.5G) network
Transferring data in GPRS (2.5G) network
Call in progress Offline mode
Connected to secured web page
Synchronised with PC Call diverting active Home Zone
Office Zone Roaming network New message
Icon Description
New voice mail
SOS message feature active
Bluetooth active
Bluetooth hands-free car kit or headset connected
Alarm set FM radio on
Silent mode (Vibration) Silent mode (Mute)
Call ringer set to vibrate
Whisper mode, during a call
Mute mode, during a call
Battery power level
To select or modify a menu or feature:
1.In Idle mode, press the Menu soft key.
2.Press the Navigation keys to reach a desired menu and then press the Select soft key or .
3.If the menu contains any submenus, locate the one you want by
pressing the Navigation keys. Press the Select soft key or to enter the submenu.
If the selected menu contains additional submenus, repeat this step.
4.Press the Navigation keys to find the setting of your choice.
5.Press the Select soft key or to confirm your chosen setting.
Shortcut numbers
You can quickly access the menu you want by using shortcut numbers. The shortcut number displays in front of the menu name in Menu mode.
Charging the battery
1. Plug the supplied travel adapter.
With the triangle facing up
2. When charging is finished, unplug the adapter.
Note: Do not remove the battery from the phone without unplugging the adapter first. Otherwise, the phone may be damaged.
Phone layout and key functions
Soft keys
Perform functions indicated by the text above the key.
Volume keys
In Idle mode, adjust the keypad tone
volume. Send an SOS message
when pressed four times with the keypad locked. X SOS mode
Dial key
Makes and answers a call. In Idle mode, retrieves the most recent calls.
Voice mail server key
In Idle mode, accesses your voice mail server when held down.
Alphanumeric keys
Web access/Confirm key
In Idle mode, accesses the web browser.
In Menu mode, selects the highlighted option or confirms input.
4-way navigation keys
In Menu mode, scroll through menu options. In Idle mode, access the following menus directly:
•Up: My menu mode
•Down/Left/Right: your favourite menus
Power/End key
Turns the phone on or off when held down. Also, ends a call.
Delete key
Deletes characters from the display or items in an application.
Silent mode key
X Silent mode
Switching on or off the phone
1.Press and hold for more than one second to switch on the phone.
2.To switch off the phone, press and hold for more than two seconds.
Changing the display language
1.In Idle mode, press the Menu soft key.
2.Select Settings → Phone settings → Language.
3.Select a language.
Making a call
1.In Idle mode, enter an area code and phone number, and press .
2.Press to end the call.
Answering a call
1.When the phone rings, press the Accept soft key or to answer a call.
To reject the call, press the Reject soft key or .
2.Press to end the call.
Adjusting the ringer volume
1.In Idle mode, press the Menu soft key.
2.Select Settings → Sound settings → Incoming call → Call alert volume.
3.Press Left or Right to adjust the volume level.
4.Press the Save soft key.
While a call is in progress, press the Volume keys to adjust the earpiece volume.
Changing a ringtone for calls
1.In Idle mode, press the Menu soft key.
2.Select Settings → Sound settings → Incoming call → Ringtone.
3.Select a ringtone category.
4.Select a ringtone and press the Save soft key.
Redialling recent numbers
1.In Idle mode, press .
2.Press Left or Right to select a call type.
3.Press Up or Down to scroll to the number you want.
4.Press to view details of a call, or
to dial the number.
Menu map
1. Call log |
3.5 |
World clock |
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1.1 |
Recent contacts |
3.6 |
Calculator |
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3.7 |
Converter |
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1.2 |
Missed calls |
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3.8 |
Timer |
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1.3 |
Dialled calls |
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3.9 |
Stopwatch |
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1.4 |
Received calls |
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3.10 |
SIM application |
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1.5 |
Delete all |
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toolkit* |
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1.6 |
Call manager |
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2. Phonebook |
4. Browser |
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4.1 |
Home |
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2.1 |
Contact list |
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4.2 |
Enter URL |
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2.2 |
Create contact |
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4.3 |
Bookmarks |
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2.3 |
Group |
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4.4 |
Clear cache |
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2.4 |
Speed dial |
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4.5 |
Browser settings |
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2.5 |
My namecard |
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2.6 |
Own numbers |
5. Messages |
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2.7 |
Management |
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2.8 |
Service number* |
5.1 |
Create message |
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5.2 |
My messages |
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3. Applications |
5.3 |
Templates |
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3.1 |
Alarm |
5.4 |
Delete all |
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5.5 |
Settings |
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3.2 |
Voice recorder |
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5.6 |
SOS messages |
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3.3 |
Java world |
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5.7 |
Memory status |
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3.4 |
Memo |
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6.My files
6.1Images
6.2Sounds
6.3Other files
6.4Memory status
7.Calendar
8.FM radio
9.Settings
9.1Time and date
9.2Phone settings
9.3Display settings
9.4Sound settings
9.5Light settings
9.6Network services
9.7Bluetooth
9.8Security
9.9Connection settings
9.10Memory status
9.11Reset settings
*Available only if supported by your SIM card.
Entering text
Changing the text input mode
•Press and hold to switch between T9 mode and ABC mode.
•Press to change case or switch to Number mode.
•Press and hold to switch to Symbol mode.
T9 mode
1.Press 2 to 9 to start entering a word. Press each key once for one letter.
The word you are entering appears on the display. It may change with each keypress. Finish entering the word before editing or deleting any keystrokes.
Example: To enter "Hello" in T9 mode, press 4, 3, 5, 5, and 6.
2.Press to insert a space and enter the next word.
ABC mode
Press the keys labelled with the letter you want once for the first letter, twice for the second letter, and so on.
For example, press 2 three times to enter "C" and 5 two times to enter "K."
Number mode
Press the keys corresponding to the digits you want.
Symbol mode
Press the keys corresponding to the symbol you want and press the OK soft key. You can press the Navigation keys to display more symbols.
Tips for entering text
•To move the cursor, press the Navigation keys.
•To delete characters one by one, press C. To delete all of the characters, press and hold C.
•To insert a space between characters, press .
•To change case in T9 mode or ABC mode, press .
•To enter punctuation marks in T9 mode or ABC mode, press 1.
Sending an SMS message
1.In Idle mode, press the Menu soft key.
2.Select Messages → Create message → Text message.
3.Enter the message text.
Menu |
Description |
Menu > Messages |
Create and send messages to other mobile phones. |
>Create message
>Text message or Multimedia message
Menu > Messages |
Access messages that you have received, sent, or |
> My messages |
that you have failed in sending. |
Menu > Messages |
Preset templates of frequently used messages. |
> Templates |
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Menu > Messages |
Delete messages in each message folder, or all |
> Delete all |
messages at once. |
Menu > Messages |
Set options for using messaging services. |
> Settings |
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Menu > Messages |
Activate the SOS message feature. Enter recipients |
> SOS messages |
and select the repeat mode. |
Menu > Messages |
Check information about the memory currently in |
> Memory status |
use. |
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Menu > My files |
Access media files and other files stored in the |
> Images, Sounds, |
phone’s memory. |
Other files |
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Menu > My files |
Check information about the memory currently in |
> Memory status |
use. |
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Menu > Calendar |
Keep track of daily or monthly schedule. |
Menu |
Listen to music or news via the FM radio on your |
> FM radio |
phone. First, you must connect your phone with the |
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headset, which serves as a radio antenna. |
Switching off when refuelling
Do not use the phone at a refuelling point (service station) or near fuels or chemicals.
Switching off in an aircraft
Wireless phones can cause interference. Using them in an aircraft is both illegal and dangerous.
Switching off near all medical equipment
Hospitals and health care facilities may be using equipment that could be sensitive to external RF energy. Follow any regulations or rules in force.
Interference
All wireless phones may be subject to interference, which could affect their performance.
Special regulations
Follow any special regulations in force in any area and always switch off your phone whenever it is forbidden to use it.
Water resistance
Your phone is not water-resistant. Keep it dry.
Sensible use
Use only in the normal position (held to your ear). Avoid unnecessary contact with the antenna when the phone is switched on.
Emergency calls
Key in the emergency number for your present location, then press . Do not end the call until given permission to do so.
4.Press the Options soft key and add items using the following options:
•Add image: add images.
•Add animation: add emotions or animations.
•Add melody: add sounds.
•Attach: attach a contact, calendar item, memo, or task.
5.Press the Options soft key and select Send only or Save and send.
6.Enter a destination number.
7.Press to send the message.
Quick feature reference
This section provides brief explanations of features on your phone.
Menu |
Description |
Menu > Call log |
View the most recent calls you have dialled, |
> Recent contacts, |
received, or missed. |
Missed calls, Dialled |
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calls, or Received calls |
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Menu > Call log |
Delete the call logs in each call type, or all logs at |
> Delete all |
once. |
Menu > Call log |
View the duration of recent calls you have dialled |
> Call manager |
and received, and the cost of your calls, if supported |
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by your SIM card. Also, make a list of the phone |
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numbers from which you want to reject calls. |
Menu |
Description |
Menu > Settings |
Set the time and date manually or set your local |
> Time and date |
time zone. |
Menu > Settings |
Select a language to be used for the display text. |
> Phone settings |
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> Language |
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Menu > Settings |
Enter the greeting message to be displayed when |
> Phone settings |
the phone is switched on. |
> Greeting message |
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Menu > Settings |
Set how the phone reacts when you open it for an |
> Phone settings |
incoming call, and when you close it while using a |
> Slide settings |
function. |
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Menu > Settings |
Set the Navigation keys as shortcuts to access your |
> Phone settings |
favourite menus directly. |
> Shortcuts |
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Menu > Settings |
Set up a menu of your own using your favourite |
> Phone settings |
menu items, which can be easily accessed by |
> My menu |
pressing Up in Idle mode. |
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Menu > Settings |
Set whether the phone mutes the call ringer or |
> Phone settings |
rejects a call if you press and hold the Volume keys |
> Volume key |
when a call comes in. |
Menu > Settings |
Set the automatic redialling feature or the |
> Phone settings |
answering method. |
> Extra settings |
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Menu > Settings |
Switch the phone to Offline mode. This mode is |
> Phone settings |
helpful when you want to use your phone in a place |
> Offline mode |
where you are not allowed to use mobile devices, |
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such as in an airplane and at a hospital. |
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Small children and your phone
Keep the phone and all its parts including accessories out of reach of small children.
Accessories and batteries
Use only Samsung-approved batteries and accessories, such as headsets and PC data cables. Use of any unauthorised accessories could damage your phone and may be dangerous.
CAUTION |
Risk of explosion if a battery is replaced by an incorrect type. |
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Dispose of used batteries according to the instructions. |
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At very high volume, prolonged listening to a headset can damage your hearing.
Qualified service
Only qualified service personnel may repair your phone.
Correct disposal of this product
(Waste Electrical & Electronic Equipment)
(Applicable in the European Union and other European countries with separate collection systems)
This marking shown on the product or its literature, indicates that it should not be disposed with other household wastes at the end of its working life. To prevent possible harm to the environment or human
health from uncontrolled waste disposal, please separate this from other
Menu |
Description |
Menu > Phonebook |
Search for contacts in Phonebook. |
> Contact list |
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Menu > Phonebook |
Add a new contact to Phonebook. |
> Create contact |
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Menu > Phonebook |
Create a group and select a ringtone for incoming |
> Group |
calls and messages from members of a group. Also, |
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change the group name. |
Menu > Phonebook |
Assign speed dial numbers of your most frequently |
> Speed dial |
dialled numbers. |
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Menu > Phonebook |
Create a name card and send it to other people. |
> My namecard |
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Menu > Phonebook |
Check your phone numbers or assign a name to |
> Own numbers |
them. |
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Menu > Phonebook |
Copy all contacts on the SIM card to the phone’s |
> Management |
memory, or delete all Phonebook contacts. You can |
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also check memory information for Phonebook |
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contacts. |
Menu > Phonebook |
Access the list of service numbers assigned by your |
> Service number |
service provider. |
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Menu > Applications |
Set an alarm to sound at a specific time. |
> Alarm |
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Menu > Applications |
Record voice memos and listen to them. |
> Voice recorder |
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Menu > Applications |
Access the Java games and downloaded Java |
> Java world |
applications. |
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Menu |
Description |
Menu > Settings |
Change the settings for the display. |
> Display settings |
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Menu > Settings |
Change the settings for the various sounds. |
> Sound settings |
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Menu > Settings |
Change the settings for the backlight and keypad |
> Light settings |
light. |
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Menu > Settings |
Access network services offered by your service |
> Network services |
provider. |
Menu > Settings |
Connect the phone wirelessly to other Bluetooth |
> Bluetooth |
devices and exchange data with them, talk hands- |
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free, or control the phone remotely. |
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Menu > Settings |
Activate your PIN to protect your SIM card against |
> Security |
unauthorised use. |
> PIN check |
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Menu > Settings |
Change the PIN. |
>Security
>Change PIN code
Menu > Settings |
Activate your phone password to protect your phone |
> Security |
against unauthorised use. |
> Phone lock |
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Menu > Settings |
Change the phone password. |
>Security
>Change password
Menu > Settings |
Lock access to messages, files, or all menu functions |
> Security > Privacy |
on the phone, except for call functions. |
Menu > Settings |
Set the phone to work only with the current SIM |
> Security > SIM lock |
card by assigning a SIM lock password. |
Menu |
Description |
Menu > Applications |
Make memos for things that are important and |
> Memo |
manage them. |
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Menu > Applications |
Set your local time zone and find out the current |
> World clock |
time in another part of the world. |
Menu > Applications |
Perform basic arithmetic functions. |
> Calculator |
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Menu > Applications |
Do conversions such as currency and temperature. |
> Converter |
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Menu > Applications |
Set a period of time for the phone to count down. |
> Timer |
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Menu > Applications |
Measure elapsed time. |
> Stopwatch |
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Menu > Applications |
Use a variety of additional service offered by your |
> SIM application |
service provider. Depending on your SIM card, this |
toolkit |
may available but labelled differently. |
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Menu > Browser |
Connect your phone to the network and load the |
> Home |
homepage of the wireless web service provider. |
Menu > Browser |
Enter a URL address in order to quickly access web |
> Enter URL |
pages. |
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Menu > Browser |
Save URL addresses in order to quickly access web |
> Bookmarks |
pages. |
Menu > Browser |
Clear the cache, which is a temporary memory site |
> Clear cache |
that stores recently accessed web pages. |
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Menu > Browser |
Select a connection profile to be used for accessing |
> Browser settings |
the wireless web. |
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Menu |
Description |
Menu > Settings |
Set the phone to restrict calls to a limited set of |
> Security |
phone numbers, if supported by your SIM card. |
> Fixed dialling mode |
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Menu > Settings |
Change your current PIN2, if supported by your SIM |
> Security |
card. |
> Change PIN2 code |
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Menu > Settings |
Track your phone when it is stolen or lost. When |
> Security |
someone tries to use your phone with other SIM |
> Mobile tracker |
card, the phone will automatically send the preset |
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tracking message to your family or friends. This |
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feature may be unavailable due to certain features |
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supported by your service provider. |
Menu > Settings |
Create and customise the profiles containing the |
> Connection settings |
settings for connecting your phone to the network. |
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Menu > Settings |
Check information about the memory currently in |
> Memory status |
use. |
Menu > Settings |
Reset the phone to the factory default settings. |
> Reset settings |
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Important safety precautions
Read these guidelines before using your wireless phone. Failure to comply with them may be dangerous or illegal.
Drive safely at all times
Do not use a hand-held phone while driving; park your vehicle first.
Menu |
Description |
Memory status |
Check memory information |
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for each items in the |
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phone’s memory or on a |
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memory card. |
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Reset settings |
Reset the phone’s settings |
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you have changed. |
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Key |
Manage the licence keys |
management |
you have acquired to |
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activate media files locked |
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by DRM systems. |
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Health and safety
Exposure to Radio Frequency (RF) Signals
Certification Information (SAR)
Your wireless phone is a radio transmitter and receiver. It is designed and manufactured not to exceed the exposure limits for radio frequency (RF) energy set by the Federal Communications Commission (FCC) of the U.S. government. These FCC exposure limits are derived from the recommendations of two expert organizations, the National Counsel on Radiation Protection and Measurement (NCRP) and the Institute of Electrical and
Electronics Engineers (IEEE). In both cases, 41
Health and safety information
the recommendations were developed by scientific and engineering experts drawn from industry, government, and academia after extensive reviews of the scientific literature related to the biological effects of RF energy.
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The exposure limit set by the FCC for wireless mobile phones employs a unit of measurement known as the Specific Absorption Rate (SAR). The SAR is a measure of the rate of absorption of RF energy by the human body expressed in units of watts per kilogram (W/kg). The FCC requires wireless phones to comply with a safety limit of 1.6 watts per kilogram (1.6 W/kg). The FCC exposure limit incorporates a substantial margin of safety to give additional protection to the public and to account for any variations in measurements.
SAR tests are conducted using standard operating positions accepted by the FCC with the phone transmitting at its highest certified power level in all tested frequency bands. Although the SAR is determined at the highest certified power level, the actual SAR level of the phone while operating can be well below the maximum value. This is because the phone is designed to operate at
multiple power levels so as to use only the power required to reach the network. In general, the closer you are to a wireless base station antenna, the lower the power output.
Before a new model phone is available for sale to the public, it must be tested and certified to the FCC that it does not exceed the exposure limit established by the FCC. Tests for each model phone are performed in positions and locations (e.g. at the ear and worn on the body) as required by the FCC.
The highest SAR values for this model phone as reported to the FCC are : GSM850
Mode Head: 0.574 W/Kg, Body-worn:1.39 W/Kg. GSM1900 Mode
Head: 1.18 W/Kg, Body-worn:0.698W/Kg.
For body worn operations, this model phone has been testde and meets the FCC exposure guidelines when used with a
Samsung accessory designated for this product or when used with an accessroy that contains no metal and that positons the handset a minimum 1.5 cm from the body.
Non-compliance with the above restrictions may result in violation of FCC RF exposure guidelines.
SAR information on this and other model phones can be viewed on-line at www.fcc.gov/oet/fccid. This site uses the phone FCC ID number A3LSGHB510Q. Sometimes it may be necessary to remove the battery pack to find the number. Once you have the FCC ID number for a particular phone, follow the instructions on the website and it should provide values for typical or maximum SAR for a particular phone. Additional product specific SAR information can also be obtained at www.fcc.gov/cgb/ sar.
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Health and safety information
Consumer Information on Wireless Phones
The U.S. Food and Drug Administration (FDA) has published a series of Questions and Answers for consumers relating to radio frequency (RF) exposure from wireless phones. The FDA publication includes the following information:
What kinds of phones are the subject of this update?
The term wireless phone refers here to hand-held wireless phones with built-in antennas, often called “cell,” “mobile,” or “PCS” phones. These types of wireless phones can expose the user to measurable radio frequency energy (RF) because of the short distance between the phone and the user's head. These RF exposures are limited by Federal Communications Commission
44 safety guidelines that were developed with
the advice of FDA and other federal health and safety agencies. When the phone is located at greater distances from the user, the exposure to RF is drastically lower because a person's RF exposure decreases rapidly with increasing distance from the source. The so-called “cordless phones,” which have a base unit connected to the telephone wiring in a house, typically operate at far lower power levels, and thus produce RF exposures well within the FCC's compliance limits.
Do wireless phones pose a health hazard?
The available scientific evidence does not show that any health problems are associated with using wireless phones. There is no proof, however, that wireless phones are absolutely safe. Wireless phones emit low levels of radio frequency energy (RF) in the microwave range while being used. They
also emit very low levels of RF when in the stand-by mode. Whereas high levels of RF can produce health effects (by heating tissue), exposure to low level RF that does not produce heating effects causes no known adverse health effects. Many studies of low level RF exposures have not found any biological effects. Some studies have suggested that some biological effects may occur, but such findings have not been confirmed by additional research. In some cases, other researchers have had difficulty in reproducing those studies, or in determining the reasons for inconsistent results.
What is FDA's role concerning the safety of wireless phones?
Under the law, FDA does not review the safety of radiation-emitting consumer products such as wireless phones before they can be sold, as it does with new drugs or medical devices. However, the agency has authority to take action if wireless phones are shown to emit radio frequency energy (RF) at a level that is hazardous to the user. In such a case, FDA could require the manufacturers of wireless phones to notify users of the health hazard and to repair, replace or recall the phones so that the hazard no longer exists.
Although the existing scientific data do not justify FDA regulatory actions, FDA has urged the wireless phone industry to take a number of steps, including the following:
45
Health and safety information
•“Support needed research into possible biological effects of RF of the type emitted by wireless phones;
•“Design wireless phones in a way that minimizes any RF exposure to the user that is not necessary for device function; and
•“Cooperate in providing users of wireless phones with the best possible information on possible effects of wireless phone use on human health.
FDA belongs to an interagency working group of the federal agencies that have responsibility for different aspects of RF safety to ensure coordinated efforts at the federal level. The following agencies belong to this working group:
•“National Institute for Occupational
46Safety and Health
•“Environmental Protection Agency
•“Federal Communications Commission
•“Occupational Safety and Health Administration
•“National Telecommunications and Information Administration
The National Institutes of Health participates in some interagency working group activities, as well.
FDA shares regulatory responsibilities for wireless phones with the Federal Communications Commission (FCC). All phones that are sold in the United States must comply with FCC safety guidelines that limit RF exposure. FCC relies on FDA and other health agencies for safety questions about wireless phones.
FCC also regulates the base stations that the wireless phone networks rely upon. While these base stations operate at higher power
than do the wireless phones themselves, the RF exposures that people get from these base stations are typically thousands of times lower than those they can get from wireless phones. Base stations are thus not the primary subject of the safety questions discussed in this document.
What are the results of the research done already?
The research done thus far has produced conflicting results, and many studies have suffered from flaws in their research methods. Animal experiments investigating the effects of radio frequency energy (RF) exposures characteristic of wireless phones have yielded conflicting results that often cannot be repeated in other laboratories. A few animal studies, however, have suggested that low levels of RF could
accelerate the development of cancer in laboratory animals. However, many of the studies that showed increased tumor development used animals that had been genetically engineered or treated with cancer-causing chemicals so as to be predisposed to develop cancer in absence of RF exposure. Other studies exposed the animals to RF for up to 22 hours per day. These conditions are not similar to the conditions under which people use wireless phones, so we don't know with certainty what the results of such studies mean for human health.
Three large epidemiology studies have been published since December 2000. Between them, the studies investigated any possible association between the use of wireless phones and primary brain cancer, glioma, meningioma, or acoustic neuroma, tumors 47
Health and safety information
of the brain or salivary gland, leukemia, or other cancers. None of the studies demonstrated the existence of any harmful health effects from wireless phones RF exposures. However, none of the studies can answer questions about long-term exposures, since the average period of phone use in these studies was around three years.
What research is needed to decide whether RF exposure from wireless phones poses a health risk?
A combination of laboratory studies and epidemiological studies of people actually using wireless phones would provide some of the data that are needed. Lifetime animal exposure studies could be completed in a few years. However, very large numbers of animals would be needed to provide reliable
proof of a cancer promoting effect if one exists. Epidemiological studies can provide data that is directly applicable to human populations, but ten or more years' followup may be needed to provide answers about some health effects, such as cancer. This is because the interval between the time of exposure to a cancer-causing agent and the time tumors develop - if they do - may be many, many years. The interpretation of epidemiological studies is hampered by difficulties in measuring actual RF exposure during day-to-day use of wireless phones. Many factors affect this measurement, such as the angle at which the phone is held, or which model of phone is used.
What is FDA doing to find out more about the possible health effects of wireless phone RF?
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