D Link WA131E1 Wireless N Nano USB adapter User Manual 2 of 2

D Link Corporation Wireless N Nano USB adapter 2 of 2

Contents

User Manual (2 of 2).pdf

29D-Link DWA-131 User Manual
Section 3 - Conguration
Connect to a Wireless Network
Using Windows Vista®
Windows Vista® users may use the built-in wireless utility. If you are using another company’s utility, please refer to the user
manual of your wireless adapter for help with connecting to a wireless network. Most utilities will have a “site survey” option
similar to the Windows Vista® utility as seen below.
Right-click on the wireless computer icon in your system tray (lower-
right corner next to the time). Select Connect to a network.
If you receive the Wireless Networks Detected bubble, click on the
center of the bubble to access the utility.
or
The utility will display any available wireless networks in your area.
Click on a network (displayed using the SSID) and click the Connect
button.
If you get a good signal but cannot access the Internet, check you
TCP/IP settings for your wireless adapter. Refer to the Networking
Basics section in this manual for more information.
30D-Link DWA-131 User Manual
Section 3 - Conguration
Connect to a Wireless Network
Using Windows® XP
Windows® XP users may use the built-in wireless utility (Zero Conguration Utility). The following instructions are for Service
Pack 2 users. If you are using another company’s utility, please refer to the user manual of your wireless adapter for help with
connecting to a wireless network. Most utilities will have a “site survey” option similar to the Windows® XP utility as seen below.
Right-click on the wireless computer icon in your system tray
(lower-right corner next to the time). Select View Available
Wireless Networks.
If you receive the Wireless Networks Detected bubble, click on
the center of the bubble to access the utility.
or
The utility will display any available wireless networks in your area. Click
on a network (displayed using the SSID) and click the Connect button.
If you get a good signal but cannot access the Internet, check your TCP/
IP settings for your wireless adapter. Refer to the Networking Basics
section in this manual for more information.
31D-Link DWA-131 User Manual
Section 4 - Wireless Security
Wireless Security
This section will show you the dierent levels of security you can use to protect your data from intruders. The
DWA-131 oers the following types of security:
• WPA2 (Wi-Fi Protected Access 2) • WPA2-PSK (Pre-Shared Key)
• WPA (Wi-Fi Protected Access) • WPA-PSK (Pre-Shared Key)
What is WPA?
WPA, or Wi-Fi Protected Access, is a Wi-Fi standard that was designed to improve the security features of WEP (Wired Equivalent
Privacy).
The 2 major improvements over WEP:
• Improved data encryption through the Temporal Key Integrity Protocol (TKIP). TKIP scrambles the keys using a
hashing algorithm and, by adding an integrity-checking feature, ensures that the keys haven’t been tampered
with. WPA2 is based on 802.11i and uses Advanced Encryption Standard instead of TKIP.
• User authentication, which is generally missing in WEP, through the extensible authentication protocol (EAP).
WEP regulates access to a wireless network based on a computer’s hardware-specic MAC address, which is
relatively simple to be snied out and stolen. EAP is built on a more secure public-key encryption system to
ensure that only authorized network users can access the network.
WPA-PSK/WPA2-PSK uses a passphrase or key to authenticate your wireless connection. The key is an alpha-numeric password
between 8 and 63 characters long. The password can include symbols (!?*&_) and spaces. This key must be the exact same key
entered on your wireless router or access point.
WPA/WPA2 incorporates user authentication through the Extensible Authentication Protocol (EAP). EAP is built on a more
secure public key encryption system to ensure that only authorized network users can access the network.
32D-Link DWA-131 User Manual
Section 4 - Wireless Security
Congure WPA/WPA2 Passphrase
Using the D-Link Wireless Connection Manager
It is recommended to enable WPA-PSK on your wireless router or access point before conguring your wireless adapter. If you
are joining an existing network, you will need to know the WPA-PSK passphrase being used.
1. Open the Wireless Connection Manager by double-clicking on the D-Link
icon on your desktop.
2. Highlight the wireless network (SSID) you would like to connect to and
click Connect. If the network is using WPA-PSK, the screen (as shown to the
bottom-right) will appear.
3. Enter the WPA-PSK passphrase exactly as it is on your wireless router or access
point. Click the Show text in the password eld box to see the passphrase.
Unchecking it will hide it.
4. Click OK to connect to the network. Allow up to 30 seconds to connect.
If you would like to create a new network and enter the WPA-PSK settings, refer
to the next page.
33D-Link DWA-131 User Manual
Section 4 - Wireless Security
It is recommended to enable WPA-PSK on your wireless router or access point before conguring your wireless adapter. Make
sure you enter the passphrase exactly the same on all wireless devices.
1. Open the Wireless Connection Manager by double-clicking on the D-Link icon on your desktop. Click on New to create a
new prole or highlight an existing prole and click Modify.
2. Select WPA/WPA2-Personal under Set Security Option.
3. Select TKIP or AES.
4. Enter the passphrase exactly as it is on your wireless router or
access point.
5. Click OK to connect to the network. Allow up to 30 seconds to
connect.
34D-Link DWA-131 User Manual
Section 4 - Wireless Security
Congure WPA/WPA2 Passphrase
Using Windows® 7
It is recommended to enable wireless security (WPA/WPA2) on your wireless router or access point before conguring your
wireless adapter. If you are joining an existing network, you will need to know the security key or passphrase being used.
2. The utility will display any available wireless networks in
your area.
1. Click on the wireless icon in your system tray (lower-right
corner).
35D-Link DWA-131 User Manual
Section 4 - Wireless Security
3. Highlight the wireless network (SSID) you would like to connect
to and click the Connect button.
If you get a good signal but cannot access the Internet, check your
TCP/IP settings for your wireless adapter. Refer to the Networking
Basics section in this manual for more information.
4. The following window appears while your computer tries to
connect to the router.
36D-Link DWA-131 User Manual
Section 4 - Wireless Security
5. Enter the same security key or passphrase that is on your router
and click Connect. You can also connect by pushing the WPS
button on the router.
It may take 20-30 seconds to connect to the wireless network. If the
connection fails, please verify that the security settings are correct.
The key or passphrase must be exactly the same as on the wireless
router.
37D-Link DWA-131 User Manual
Section 4 - Wireless Security
Congure WPA/WPA2 Passphrase
Using Windows® Vista
It is recommended to enable wireless security (WPA/WPA2) on your wireless router or access point before conguring your
wireless adapter. If you are joining an existing network, you will need to know the security key or passphrase being used.
2. Highlight the wireless network (SSID) you would like to
connect to and click Connect.
1. Open the Windows Vista® Wireless Utility by right-clicking on
the wireless computer icon in your system tray (lower right
corner of screen). Select Connect to a network.
38D-Link DWA-131 User Manual
Section 4 - Wireless Security
3. Enter the same security key or passphrase that is on your router and
click Connect.
It may take 20-30 seconds to connect to the wireless network. If the
connection fails, please verify that the security settings are correct. The
key or passphrase must be exactly the same as on the wireless router.
39D-Link DWA-131 User Manual
Section 4 - Wireless Security
Congure WPA/WPA2 Passphrase
Using the Windows® XP Utility
It is recommended to enable WPA-PSK on your wireless router or access point before conguring your wireless adapter. If you
are joining an existing network, you will need to know the WPA-PSK key being used.
2. Highlight the wireless network (SSID) you would like to
connect to and click Connect.
1. Open the Windows® XP Wireless Utility by right-clicking
on the wireless computer icon in your system tray
(lower-right corner of screen). Select View Available Wireless
Networks.
40D-Link DWA-131 User Manual
Section 4 - Wireless Security
3. The Wireless Network Connection box will appear. Enter the WPA-PSK
passphrase and click Connect.
It may take 20-30 seconds to connect to the wireless network. If the
connection fails, please verify that the WPA-PSK settings are correct. The
WPA-PSK passphrase must be exactly the same as on the wireless router
or access point.
41D-Link DWA-131 User Manual
Section 4 - Wireless Security
Congure WPA/WPA2-Enterprise
Using the D-Link Wireless Connection Manager
WPA and WPA2 are for advanced users who are familiar with using a RADIUS server and setting up certicates.
1. Open the Wireless Connection Manager by double-clicking on the D-Link icon
on your desktop. Click on New to create a new prole or highlight an existing
prole and click Modify.
2. Select WPA/WPA2-Enterprise under Set Security Option and then select TKIP or
AES.
3. Click on Advanced Cong to continue.
4. Next to EAP Type, select EAP-TLS. Extensible Authentication Protocols allow
devices on the network to request authentication from the RADIUS server
in the network. All the devices on the network must use the same EAP type
when using a RADIUS server for authentication. Some RADIUS servers require
that the Validate Server eld be selected. Check this eld if your RADIUS server
requires validation.
5. Select a User Certicate from the drop-down menu.
6. Enter the login information required to authenticate.
7. Click Add to enter the IP address(es) of your RADIUS servers.
8. Click OK to save your settings.
42D-Link DWA-131 User Manual
Section 5 - Troubleshooting
1. How do I know if my adapter is installed properly?
Select the Hardware Tab.
Troubleshooting
This chapter provides solutions to problems that can occur during the installation and operation of the DWA-131. Read the
following descriptions if you are having problems. The examples below are illustrated in Windows® XP. If you have a dierent
operating system, the screenshots on your computer will look similar to the following examples.
Go to Start > My Computer > Properties.
43D-Link DWA-131 User Manual
Section 5 - Troubleshooting
Click the + sign next to Network Adapters.
Right-click on D-Link DWA-131 USB Adapter.
Select Properties to check that the drivers are installed properly.
Look under Device Status to check that the device is working properly. Click
OK to continue.
D-Link DWA-131 USB Adapter
D-Link DWA-131
Wireless USB Adapter
44D-Link DWA-131 User Manual
Section 5 - Troubleshooting
Make sure that the DWA-131 Wireless USB Adapter is properly seated in the computer’s USB port.
If Windows does not detect the hardware upon insertion of the adapter, make sure to completely remove drivers that were
previously loaded.
2. The computer does not recognize the DWA-131 Wireless USB Adapter.
• Check that the LED indicators for the broadband modem are indicating normal activity. If not, there may be a
problem with the broadband connection.
• Check that the LED indicators on the wireless router are functioning properly. If not, check that the AC power
and Ethernet cables are rmly connected.
• Check that the IP Address, subnet mask, gateway, and DNS settings are correctly entered for the network
• In Infrastructure mode, make sure the same Service Set Identier (SSID) is specied on the settings for the
wireless clients and access points. The SSID factory default setting for D-Link products is default. (Double-click
on the WLAN icon in the taskbar. The Link Info screen will display the SSID setting.)
3. The computer with the DWA-131 installed is unable to connect to the wireless network and/or the Internet.
45D-Link DWA-131 User Manual
Section 5 - Troubleshooting
Check that the Network Connection for the wireless client is congured properly. Select AP (Infrastructure) when connecting
to an access point. Double-click on the WLAN icon in the taskbar > click on Conguration to change the settings for the
wireless adapter.
If Security is enabled, make sure that the correct encryption keys are entered on both the DWA-131 and the access point.
Double-click on the WLAN icon in the taskbar > click Encryption. Check to see that the key selected is set to the same key as
other devices on the network.
46D-Link DWA-131 User Manual
Appendix A - Wireless Basics
D-Link wireless products are based on industry standards to provide easy-to-use and compatible high-speed wireless
connectivity within your home, business or public access wireless networks. Strictly adhering to the IEEE standard, the D-Link
wireless family of products will allow you to securely access the data you want, when and where you want it. You will be able
to enjoy the freedom that wireless networking delivers.
A wireless local area network (WLAN) is a cellular computer network that transmits and receives data with radio signals instead of
wires. Wireless LANs are used increasingly in both home and oce environments, and public areas such as airports, coee shops
and universities. Innovative ways to utilize WLAN technology are helping people to work and communicate more eciently.
Increased mobility and the absence of cabling and other xed infrastructure have proven to be benecial for many users.
Wireless users can use the same applications they use on a wired network. Wireless adapter cards used on laptop and desktop
systems support the same protocols as Ethernet adapter cards.
Under many circumstances, it may be desirable for mobile network devices to link to a conventional Ethernet LAN in order to
use servers, printers or an Internet connection supplied through the wired LAN. A Wireless Router is a device used to provide
this link.
Wireless Basics
47D-Link DWA-131 User Manual
Appendix A - Wireless Basics
What is Wireless?
Wireless or Wi-Fi technology is another way of connecting your computer to the network without using wires.
Wi-Fi uses radio frequency to connect wirelessly, so you have the freedom to connect computers anywhere in
your home or oce network.
Why D-Link Wireless?
D-Link is the worldwide leader and award winning designer, developer, and manufacturer of networking
products. D-Link delivers the performance you need at a price you can aord. D-Link has all the products you
need to build your network.
How does wireless work?
Wireless works similar to how cordless phone work, through radio signals to transmit data from one point A
to point B. But wireless technology has restrictions as to how you can access the network. You must be within
the wireless network range area to be able to connect your computer. There are two dierent types of wireless
networks Wireless Local Area Network (WLAN), and Wireless Personal Area Network (WPAN).
Wireless Local Area Network (WLAN)
In a wireless local area network, a device called an Access Point (AP) connects computers to the network. The
access point has a small antenna attached to it, which allows it to transmit data back and forth over radio signals.
With an indoor access point as seen in the picture, the signal can travel up to 300 feet. With an outdoor access
point the signal can reach out up to 30 miles to serve places like manufacturing plants, industrial locations,
college and high school campuses, airports, golf courses, and many other outdoor venues.
Wireless Personal Area Network (WPAN)
48D-Link DWA-131 User Manual
Appendix A - Wireless Basics
Bluetooth is the industry standard wireless technology used for WPAN. Bluetooth devices in WPAN operate in
a range up to 30 feet away.
Compared to WLAN, the speed and wireless operation range are both less than WLAN, but in return it doesn’t
use nearly as much power which makes it ideal for personal devices, such as mobile phones, PDAs, headphones,
laptops, speakers, and other devices that operate on batteries.
Who uses wireless?
Wireless technology as become so popular in recent years that almost everyone is using it, whether it’s for home,
oce, business, D-Link has a wireless solution for it.
Home
• Gives everyone at home broadband access
• Surf the web, check email, instant message, and etc.
• Gets rid of the cables around the house
• Simple and easy to use
Small Oce and Home Oce
• Stay on top of everything at home as you would at oce
• Remotely access your oce network from home
• Share Internet connection and printer with multiple computers
• No need to dedicate oce space
49D-Link DWA-131 User Manual
Appendix A - Wireless Basics
Where is wireless used?
Wireless technology is expanding everywhere not just at home or oce. People like the freedom of mobility and it’s becoming
so popular that more and more public facilities now provide wireless access to attract people. The wireless connection in public
places is usually called “hotspots”.
Using a D-Link USB Adapter with your laptop, you can access the hotspot to connect to Internet from remote
locations like: Airports, Hotels, Coee Shops, Libraries, Restaurants, and Convention Centers.
Wireless network is easy to setup, but if you’re installing it for the rst time it could be quite a task not knowing
where to start. That’s why we’ve put together a few setup steps and tips to help you through the process of
setting up a wireless network.
Tips
Here are a few things to keep in mind, when you install a wireless network.
Centralize your router or Access Point
Make sure you place the router/access point in a centralized location within your network for the best performance.
Try to place the router/access point as high as possible in the room, so the signal gets dispersed throughout
your home. If you have a two-story home, you may need a repeater to boost the signal to extend the range.
Eliminate Interference
Place home appliances such as cordless telephones, Nanowaves, and televisions as far away as possible from
the router/access point. This would signicantly reduce any interference that the appliances might cause since
they operate on same frequency.
Security
Don’t let your next-door neighbors or intruders connect to your wireless network. Secure your wireless network by turning on
the WPA or WEP security feature on the router. Refer to product manual for detail information on how to set it up.
50D-Link DWA-131 User Manual
Appendix A - Wireless Basics
There are basically two modes of networking:
• Infrastructure – All wireless clients will connect to an access point or wireless router.
• Ad-Hoc – Directly connecting to another computer, for peer-to-peer communication, using wireless network
adapters on each computer. Unfortunately 802.11g/n products such as the DWA-131 do not support ad-hoc
mode.
An Infrastructure network contains an Access Point or wireless router. All the wireless devices, or clients, will connect to the
wireless router or access point.
An Ad-Hoc* network contains only clients, such as laptops with wireless USB Adapters. All the adapters must be in Ad-Hoc
mode to communicate.
* Not supported with the DWA-131.
Wireless Modes
51D-Link DWA-131 User Manual
Appendix B - Networking Basics
Networking Basics
Check your IP address
After you install your new D-Link wireless adapter and have established a wireless connection, by default, the TCP/IP settings
should be set to obtain an IP address from a DHCP server (i.e. router) automatically. To verify your IP address, please follow the
steps below.
Windows® XP Users
• Click on Start > Run. In the run box type cmd and click OK.
• At the prompt, type ipcong and press Enter.
• This will display the IP address, subnet mask, and the default gateway of your adapter.
Windows® 7/Windows Vista® Users
• Click Start > All Programs > Accessories > Command Prompt. You may need
administrative access to run this application.
• For all additional prompt windows inquiring of running the command prompt
application, select Yes, OK, or Continue.
• At the prompt, type ipcong and press Enter.
• This will display the IP address, subnet mask, and default gateway of your adapter.
If the address is 0.0.0.0, check your adapter installation, security settings, and the settings on your router. Some rewall software programs may
block a DHCP request on newly installed adapters.
52D-Link DWA-131 User Manual
Appendix B - Networking Basics
Statically Assign an IP address
If you are not using a DHCP capable gateway/router, or you need to assign a static IP address, please follow the steps below:
Windows® XP Users
• Windows® XP - Click on Start > Control Panel. Make sure you are in Classic View. Double-click on the Network Connections icon.
• Right-click on the Local Area Connection which represents your D-Link wireless network adapter (or other adapter) which will be connected
to your router.
• Highlight Internet Protocol (TCP/IP) and click Properties.
• Click Use the following IP address and enter an IP address that is on the same subnet as your network or LAN IP address on your router.
Example: If the router’s LAN IP address is 192.168.0.1, make your IP address 192.168.0.X where
X is a number between 2 and 99. Make sure that the number you choose is not in use on the
network.
• Set Default Gateway the same as the LAN IP address of your router or gateway.
• Set Primary DNS the same as the LAN IP address of your router or gateway.
• The Secondary DNS is optional (you may enter a DNS server from your ISP).
• Click OK to save your settings.
53D-Link DWA-131 User Manual
Appendix B - Networking Basics
Windows® 7/Windows Vista® Users
• Click on Start > Control Panel (make sure you are in Classic View). Double-click on the Network and Sharing Center icon. If you are
using Windows Vista, click on Manage network connections along the left panel in the window. For Windows 7, click on Change adapter
settings.
• Right-click on the Local Area Connection which represents your D-Link wireless network adapter which will be connected to your network.
• Highlight Internet Protocol Version 4 (TCP /IPv4) and click Properties.
• Click Use the following IP address and enter an IP address that is on the same
subnet as your network or LAN IP address on your router or network.
Example: If the router’s LAN IP address is 192.168.0.1, make your IP address
192.168.0.X where X is a number between 2 and 99. Make sure that the number
you choose is not in use on the network.
• Set Default Gateway the same as the LAN IP address of your router or gateway.
• Set Primary DNS the same as the LAN IP address of your router or gateway.
• The Secondary DNS is optional (you may enter a DNS server from your ISP).
• Click OK to save your settings.
54D-Link DWA-131 User Manual
Appendix C - Technical Specications
Technical Specications
Standards
• IEEE 802.11n
• IEEE 802.11g
• IEEE 802.11b
Bus Type
• USB 2.0 (1.1 compatible)
Security
• WPA/WPA2 - Wi-Fi Protected Access (TKIP, MIC, AES,
IV Expansion, Shared Key Authentication)
• WPS (PIN and PBC)
Media Access Control
• CSMA/CA with ACK
Frequency Range
• 2.4GHz to 2.4835GHz
Modulation Technology
• Orthogonal Frequency
Division Multiplexing (OFDM)
• Complementary Code Keying (CCK)
Operating Voltage
• 5 VDC +/- 10%
Operating Temperature
• 32°F to 104°F ( 0°C to 40°C)
Operating Humidity
• 10% to 90% maximum (non-condensing)
Dimensions
• 1.2” x 0.6” x 0.3”
Weight
• 0.06 lbs (27.22g)
Certications
• FCC Class B
• IC
• CE, C-Tick and Wi-Fi
* Maximum wireless signal rate derived from IEEE Standard 802.11n and 802.11g specications. Actual data throughput will vary. Network conditions and
environmental factors, including volume of network trac, building materials and construction, and network overhead, lower actual data throughput
rate. Environmental factors will adversely aect wireless signal range.
55D-Link DWA-131 User Manual
Appendix E - Warranty
FCC Statement:
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
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 o and on, the user is encouraged to try to correct the interference by
one 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 dierent from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
FCC Caution: Any changes or modications not expressly approved by the party responsible for compliance could void the user’s authority to
operate this equipment.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
IMPORTANT NOTICE:
Radiation Exposure Statement:
The product comply with the FCC portable RF exposure limit set forth for an uncontrolled environment and are safe for intended operation as
described in this manual. The further RF exposure reduction can be achieved if the product can be kept as far as possible from the user body or
set the device to lower output power if such function is available.
The USB dongle transmitter is approved for use in typical laptop computers. To comply with FCC RF exposure requirements, it should not be
used in other devices or certain laptop and tablet computer congurations where the USB connectors on the host computer are unable to
provide or ensure the necessary operating congurations intended for the device and its users or bystanders to satisfy RF exposure compliance
requirements.
Note: The country code selection is for non-US model only and is not available to all US model. Per FCC regulation, all WiFi product marketed
in US must xed to US operation channels only.
56D-Link DWA-131 User Manual
Appendix E - Warranty
Industry Canada Notice:
This device complies with RSS-210 of the Industry Canada Rules. Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Ce dispositif est conforme à la norme CNR-210 d’Industrie Canada applicable aux appareils radio exempts de licence. Son fonctionnement
est sujet aux deux conditions suivantes: (1) le dispositif ne doit pas produire de brouillage préjudiciable, et (2) ce dispositif doit accepter tout
brouillage reçu, y compris un brouillage susceptible de provoquer un fonctionnement indésirable.
IMPORTANT NOTE:
Radiation Exposure Statement:
The product comply with the Canada portable RF exposure limit set forth for an uncontrolled environment and are safe for intended operation
as described in this manual. The further RF exposure reduction can be achieved if the product can be kept as far as possible from the user body
or set the device to lower output power if such function is available.
Déclaration d’exposition aux radiations:
Le produit est conforme aux limites d’exposition pour les appareils portables RF pour les Etats-Unis et le Canada établies pour un environnement
non contrôlé.
Le produit est sûr pour un fonctionnement tel que décrit dans ce manuel. La réduction aux expositions RF peut être augmentée si l’appareil
peut être conservé aussi loin que possible du corps de l’utilisateur ou que le dispositif est réglé sur la puissance de sortie la plus faible si une
telle fonction est disponible.
57D-Link DWA-131 User Manual
Appendix E - Warranty
以下警語適用台灣地區
依據 低功率電波輻射性電機管理辦法
第十二條 : 經型式認證合格之低功率射頻電機，非經許可，公司、商號或使用者均不得擅自變更頻率、加大功率或變更原設計之特性及功
能。
第十四條 : 低功率射頻電機之使用不得影響飛航安全及干擾合法通信；經發現有干擾現象時，應立即停用，並改善至無干擾時方得繼續
使用。
前項合法通信，指依電信規定作業之無線電信。低功率射頻電機須忍受合法通信或工業、科學及醫療用電波輻射性電機設備之干擾。
低功率射頻電機之使用不得影響飛航安全及干擾合法通信；經發現有干擾現象時，應立即停用，並改善至無干擾時方得繼續使用。前項合
法通信，指依電信法規定作業之無線電通信。低功率射頻電機須忍受合法通信或工業、科學及醫療用電波輻射性電機設備之干擾。

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