ThisdocumentisthepropertyofLANDI.
Itscontentcannotbereproducedordivulgedwithout
the company’swrittenapproval.
16/18
5.3 Notes of Wireless Communication
1. Usage of WCDMA Functions
The wireless communication feature requires the support from local telecom operators. To use such function, you should
obtain the data-enabled SIM/UIM card from local telecom operators. You can then insert this card into E830 card slot; and
power the device on to implement corresponding operations. When the LCD display the signal icon, it represents the network
is successfully connected. If connection fails, please check:
If the device supports WCDMA function;
If SIM/UIM card is effective and corresponding data function is opened;
If it is within the radio base station network signal coverage;
If the power supply is sufficient.
******************************************************************************************
NOTE
WCDMA module supports only 3V SIM cards. Please plug in/out the SIM/UIM card under off state to
prevent from damage to the card or terminal.
******************************************************************************************
2、 Power of Wireless Communication
The power of RF signal transmission is not fixed, it will be adjusted depending on current network situation, to be radiated
with required transmission quality at minimum power.
Following is the maximum transmission power of terminals with various wireless communication standards.
In general, transmission power of WCDMA is 0.2W
******************************************************************************************
NOTE
WCDMA module radiation:
５５µWCM²;
******************************************************************************************
3、 Effects of Wireless Communication Module
There is still no last word about the effects of the WCDMA to human health. But if you are concerned about radiation, please
follow the rules as below:
Stay far away from the terminal.
Stay far away from the terminal at the beginning of 1-2s while connected.
Do not dismantle the terminal without permission; otherwise it will cause internal electromagnetic leakage.
4
、 Electromagnetic Interference
Malfunction may occur to the device under RF energy radiation if there are no electromagnetic protection measures. Please be
noted to check if the device in the vicinity has been preventing from electromagnetic.
5
、 Power off the terminal in the airplane in accordance with the provisions of civil aviation.
6
、Usages notes under inflammable, explosive situations
Take appropriate measures to prevent from possible explosion while using the device with wireless communication function
under flammable and explosive occasions; or use the device with corresponding explosion-proof label.
7
、Usages notes under medical occasions
Device with wireless configurations may cause interference to some medical electronic equipment. It is not allowed to use such
device in the vicinity of patient with pacemakers.
8
、Usage noted thunderstorm weather
According to some relevant reports, the mobile phone electromagnetic wave is good conductor of lightning. It is much easier to
suffer lightning strike when the damp atmosphere form a magnetic conductivity, especially in open areas. Do not use wireless
terminals under thunderstorm weather.
6 FAQ
Q: The terminal cannot be started.
A: The device might be under low energy status or the program may be damaged. Please make sure the power is enough and then
restart your device. If it still fails, please contact our customer service department for help.
To Next Page
