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If your computer comes with a wireless WAN feature, its main transmitter antenna is located at the top right
side of the computer display.
4 Wireless LAN and WiMAX combo antenna (Main)
The main antenna connected to the wireless LAN or WiMAX feature is located at the top right corner of
the computer display.
Locating wireless regulatory notices
For more information about the wireless regulatory notices, refer to the ThinkPad Regulatory Notice shipped
with your computer.
If your computer is shipped without the ThinkPad Regulatory Notice, you can nd it on the Web site
http://www.lenovo.com/support.
To view the ThinkPad Regulatory Notice on the Web site, do the following:
1. Go to:
http://www.lenovo.com/support
2. Click the Support & downloads section, a new page is displayed.
3. In the right pane, type your computer number in the Enter a product number led, and click Go.
4. You can then nd the ThinkPad Regulatory Notice in the displayed search results.
Export classication notice
This product is subject to the United States Export Administration Regulations (EAR) and has an Export
Classication Control Number (ECCN) of 4A994.b. It can be re-exported except to any of the embargoed
countries in the EAR E1 country list.
Electronic emission notices
The following information refers to the ThinkPad L420 and L520, machine type 5015, 5016, 5017, 5019,7826,
7827, 7829, 7853, 7854, 7856, 7859, and 7860.
Federal Communications Commission Declaration of Conformity
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult an authorized dealer or service representative for help.
Lenovo is not responsible for any radio or television interference caused by using other than specied or
recommended cables and connectors or by unauthorized changes or modications to this equipment.
Unauthorized changes or modications could void the user's authority to operate the equipment.
Appendix A. Regulatory information 193