IBM ThinkPad T30 Series Service And Troubleshooting Manual page 60

Transmitted energy from the Bluetooth device is very low compared to
other RF devices. Therefore a 20 cm separation from the Bluetooth antenna
is not required.
Use of Wireless options
Please make sure of the following when you use a Bluetooth option or
wireless option PC Card in your ThinkPad computer.
1. Visit the IBM
confirm the updated list of RF option devices that have been approved to
cooperate with the integrated wireless feature.
2. When you use any other RF option device that is not listed on the IBM
site, all other wireless features including the integrated transmitter in your
ThinkPad computer are required to be turned off.
3. Users are requested to follow the RF Safety instructions on wireless option
devices that are included in the RF option device's user's manual.
ii) Single Transmitter model
There is no FCC ID shown on the enclosure of this model. Instead you will
find an indicator pointing the location of the FCC ID at the bottom side of
your ThinkPad computer. If no integrated wireless LAN Mini-PCI Card has
been preinstalled in the computer, you can install one, provided by IBM as an
option.
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ThinkPad T30 Series Service and Troubleshooting Guide
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site at www.ibm.com/pc/qtechinfo/MIGR-39377.html and