Table of Contents CHAPTER 1 INTRODUCTION.............................................................................1 Wireless VPN router Features......................................................................................1 Package Contents..........................................................................................................1 Physical Details.............................................................................................................2 CHAPTER 2 INSTALLATION..............................................................................4 Requirements................................................................................................................4 Procedure......................................................................................................................4 CHAPTER 3 CONFIGURATION..........................................................................6 Setup Wizard................................................................................................................7 Check the Network Connection....................................................................................9 CHAPTER 4 CONFIGURATION VIA WEB.........................................................................................10 Internet Port...............................................................................................................10 Local Port....................................................................................................................15 Advanced Setup..........................................................................................................17 Network Status............................................................................................................25 Others.........................................................................................................................26 i Chapter 1 Introduction Congratulations on the purchase of your new Wireless Router. The Wireless VPN router is a multi-function device providing the following services:
Shared Broadband Internet Access for all LAN users. 4-Port Switching Hub for 10BaseT or 100BaseT connections. Wireless Access Point for 802.11b and 802.11g Wireless Stations. 1 Figure 1: Wireless VPN Router Application Map Wireless VPN router Features The Wireless VPN router incorporates many advanced features, carefully designed to provide sophisticated functions while being easy to use. Package Contents The following items should be included:
The Wireless VPN router Unit Power Adapter Quick Installation Guide CD-ROM containing the on-line manual. If any of the above items are damaged or missing, please contact your dealer immediately. 1 Physical Details Front-mounted LEDs Figure 2: Front Panel Pwr/Er r Color Status Green On
- Power on. Off - No power. WAN Green On
- Connection to the Broadband Modem attached to the WAN port is established. Off - No connection to the Broadband Modem. Flashing - Data is being transmitted or received via the WAN port. WLAN Green On
- Wireless connection available; Wireless Access Point is ready for use. Off - No Wireless connection available. Flashing - Data is being transmitted or received via the Wireless access point. Data includes "network traffic" as well as user data. LAN
(1-4) DMZ Green On -Linked to LAN Off - No link to LAN Flashing - Data is being transmitted or received via LAN Green On -Linked to DMZ Off - No link to DMZ Flashing - Data is being transmitted or received via DMZ Rear Panel Figure 3: Rear Panel 2 Connect the supplied power adapter here. Use standard LAN cables (RJ45 connectors) to connect your PCs to these ports. If required, any port can be connected to another hub. Any LAN port will automatically function as an "Uplink" port when necessary. Connect the DSL or Cable Modem here. If your modem came with a cable, use the supplied cable. Otherwise, use a standard LAN cable. Power port
(DC 5V) 10/100BaseT LAN port WAN port
(10/100BaseT) Reset Button 3 Chapter 2 Installation Requirements Network cables. Use standard 10/100BaseT network (UTP) cables with RJ45 connectors. TCP/IP protocol must be installed on all PCs. For Internet Access, an Internet Access account with an ISP, and either of a DSL or Cable modem (for WAN port usage) 2 To use the Wireless Access Point, all Wireless devices must be compliant with the IEEE802.11b or IEEE802.11g specifications. Procedure Figure 4: Installation Diagram 1. Choose an Installation Site Select a suitable place on the network to install the Wireless Router. Ensure the Wireless VPN router and the DSL/Cable modem are powered OFF. 2. Connect LAN Cables Connect PCs to the LAN ports on the Wireless VPN router with standard LAN cables
(RJ-45). 3. Connect WAN Cable Connect the DSL or Cable modem to the WAN port on the Wireless Router. Use the cable supplied with your DSL/Cable modem. If no cable was supplied, use a standard cable. 4. Power Up Power on the Cable or DSL modem. Connect the supplied power adapter to the Wireless VPN router and power up. Use only the power adapter provided. Using a different one may cause hardware damage 4 5. Check the LEDs The Power LED should be ON. For each LAN (PC) connection, the LAN should be ON (provided the PC is also ON.) The WAN LED should be ON. The WLAN LED should be ON 5 Chapter 3 Configuration NOTE !
Before setting up the Wireless Router, make sure your PCs are configured to "Obtain an IP
(or TCP/IP) address automatically". 3 For Windows 2000 & XP Users 1. Go to Start Control Panel Network and Internet Connections (Right-click on) Local Area Connection Properties 2. Make sure the box next to Internet Protocol (TCP/IP) is checked. Click the Protocol (TCP/IP) and click the Properties button. Internet 3. Select "Obtain an IP address automatically". Select "Obtain DNS server address automatically". Then click OK to complete the PC configuration. 4. Restart your computer. 6 Setup Wizard For Windows 2000 & XP users, your computer should obtain an IP Address automatically from the Wireless Router's DHCP Server, after you've done the above steps and restarted your computer. 1.Start your WEB browser. In the Address box, enter the following:
HTTP://192.168.1.254 2. Press the Setup Wizard on the upper left screen to configure the router. Figure 5 Figure 6 3. Refer to the data from your ISP and the following table, please select the type of Internet Access you want. And then follow the instructions on the screen to continue. Figure 7 Type of connection Data Required PPPoE Please enter Login name and Password. DHCP Usually you dont need to enter any data, but some ISP may require a particular Hostname, Domain name . Please enter the data required. Static IP For static IP users, please enter the data provided by your ISP including IP address, Subnet Mask, Gateway, The type of Internet Access PPPoE
(DSL dynamic mode) DHCP
(CATV dy-
namic mode) Static configu-
ration 7 Primary DNS and Secondary DNS. 4. Please press Reboot after the configuration is completed and wait for a moment for Network connection checking. Figure 8 8 Check the Network Connection After the installation is completed, you can open a new browser to surf the Internet. User Name and Password blank and pressOk. s address field, type in 192.168.1.254 and click Go. If the browser fails to open the web page, you can check the Internet connection by following the steps below:
1. On the browser 2. Leave both 3. On the screen, select 4. Locate If the IP address is not 0.0.0.0 (as illustrated below), the Internet connection is established. If the IP address is 0.0.0.0, that means the Internet connection test fails. Please check your data, the Cable/DSL modem, and all connection. Make sure you have entered all data correctly. Repeat the Setup Wizard described above. Network status tab on the upper right hand screen. IP address on the screen. Network Status The Internet connection is established. Figure 9 9 Chapter 4 Configuration via Web 4 In the setup home page, you can set your preference from Internet Port (CATV dynamic Mode, PPPoE, Static configuration, PPTP), Local Port, Advanced Setup(Management, Virtual Server, Packet Filter, Static Route, Dynamic DNS, URL Blocking) Network Status (Connection Status, Session List, Users List,), and Others (Factory Reset, Save Configuration, Firmware Upgrade. ) Internet Port The opening screen contains settings for the Internet connection interface. Click on the down arrow 6 to select the desired Internet connection mode on the list. Obtain configuration automatically
(CATV dynamic mode) PPPoE (DSL dynamic mode) For users who are using Cable Modem Internet service. For users who are using xDSL Inter-
net service that runs PPPoE. If your xDSL service uses PPPoE, after installing the Router, do not run PPPoE software on your computers. Select this item when the ISP assigns static IP address for your account. Static configuration PPTP (DSL dynamic mode) CATV dynamic Mode Selecting this mode enables you to obtain dynamic IP address from your ISP via DHCP support. Once the IP address is obtained, you can access the Internet. For most cases, this page needs no input. However, some ISPs may require some infor-
mation for identification purpose. For example: Device/Computer name and Domain Name; please enter the information required to complete the settings. Check to modify the MAC address 10 Figure 10 Device Information Adapter Address Device/Computer Name Domain Name DNS Configuration DNS Server Undo Save This field is grayed out, because the Adapter Address is not supposed to be entered randomly. Do Not change the content unless you are sure it is necessary to modify your MAC address. To modify the address; check Modify and enter the desired MAC address. Enter a descriptive name for identification purpose. Some Internet Service Providers (ISP) requires this information and if that is the case, they will provide you with the name. For example: yourcompany.com. The maximum input for this field is 32 alphanumeric characters and it is case insensitive. Note: 1. Your ISP may ask you to input a certain domain name. 2. Domain name is also required for internal networks email and news functions. This field is grayed out for the IP address is obtained dynamically Select Dynamic or Static. Enter the information of Primary and Secondary DNS Server provided by your ISP when Static configuration is selected. Click Undo to clear all the settings on this page. After completing the settings on this page, click Save to save the settings. PPPoE (DSL dynamic Mode) If this mode is selected and settings are saved, this Router will be connected to the Internet over an always-on connection by a method provided by PPPoE. PPPoE offers simulated dial-up, which save users time and effort to run the program on their PCs. And the auto-connect/disconnect feature lets the system to stay idle when theres no activity, but pick up the connection in no time when theres network activity. This can significantly save users cost on connection fees. The MTU function lets you choose the maximum packet size that fits your need for optimal throughput. To reduce the packet size can help connecting to certain web sites or speeding up packet to be received/sent. 11 12 Figure 11 Device Information Adapter Address Device/Computer Name Domain Name PPPoE Information PPPoE Account Username This field is grayed out, because the Adapter Address is not supposed to be entered randomly. Do Not alter the content unless you are sure it is necessary to modify your MAC address. To modify the address, check Modify and enter the desired MAC address. Enter a descriptive name for identification purpose. Some Internet Service Providers (ISP) requires this information and if that is the case, they will provide you with the name. For example: yourcompany.com. The maximum input for this field is 32 alphanumeric characters and it is case insensitive Active Profile 1 2 3 You can set up to three PPPoE accounts, while only one account can be enabled at a time. To set the profile, select the profile number, enter all the information, and then click on Save. The device will save the information, restart and return to the previ-
ous menu page. If you dont see the saved information on the screen, click on the Internet Port to refresh the screen. Maximum input is 52 alphanumeric characters (case sensitive) Password Confirm Password Service Name MAX PACKET SIZE
(MTU) Static IP Address:
Static DNS Server Auto-disconnect if idle for minutes Auto-reconnect Save Undo Maximum input is 36 alphanumeric characters (case sensitive) Re-enter your password for confirmation. For identification purpose. If it is required, your ISP will provide you with the information. Max packet size (MTU): Click the down arrow 6 to select the most appropriate MSS (maximum segment size;
default value is 1492) for your application. Reducing the packet size can help connecting to certain web sites or speeding up packet transfer rate. If the incorrect selection is selected, you may not be able to open certain web sites. Enter the IP address provided by your ISP. Enter the primary and secondary DNS addresses provided by your ISP. Configure this device to disconnect the PPPoE connection when there is no activity for a predetermined period of time. Default: 5 minutes. You can input any number from 0 To keep the line always connected, set the number to to 65535. 0. Check to enable auto-reconnected with PPPoE line. This function allows the device to automatically reconnect when the line is disconnected due to ISP problem. After completing the settings on this page, click Save to save the settings. Click Undo to clear all the settings on this page. Static Configuration For leased line users, information provided by their ISPs has to be filled in the below respective fields when this mode is selected. Information from your ISP includes: IP address, Subnet Mask, Gateway, primary DNS, secondary DNS, note that there may be more than one IP address from your ISP, select one address and enter it in the corre-
sponding field. 13 14 Figure 12 Device Information Adapter Address Device/Computer Name Domain Name IP Address IP Address Subnet Mask Gateway DNS Server Configuration Primary/Secondary Undo Save This field is grayed out, because the Adapter Address is not supposed to be entered randomly. Do Not alter the content unless you are sure it is necessary to modify your MAC address. To modify the address, check Modify and enter the desired MAC address. Enter a descriptive name for identification purpose. Some Internet Service Providers (ISP) requires this information and if that is the case, they will provide you with the name For example: yourcompany.com. The maximum input for this field is 32 alphanumeric characters and it is case insensitive Enter the information provided by your ISP. Enter the information provided by your ISP. Enter the information provided by your ISP. Enter the information provided by your ISP. Click Undo to clear all the settings on this page. After completing the settings on this page, click Save to save the settings. Local Port This screen contains settings for LAN interface attached to the local network. You can set to distribute IP address to local PCs or not. If Distribute IP address to local computer is selected, users can assign IP addresses for computers on LAN. The number of IP address decides the number of clients allowed to obtain IP addresses. Note that all the PC on the same LAN should use the same subnet Mask. Users can also set Static DHCP in this page. Users are allowed to set 32 Static DHCP. Using this feature, the device will assign the same IP address to a computer (according to the network adapters MAC address) and this computer becomes the only one able to request that IP address. This is quite useful to set virtual serveres which requires particulary fixed IP for outside Internet access. Private Network IP Address Subnet mask DHCP Server Do not distribute IP address to local com-
puters Distribute IP addresses to local computers Start IP address Number of IP address Figure 13 Default: 192.168.1.254 (this is the local address of this Router) Default: 255.255.255.0 Checking this radio button to disable this Router to distribute IP Addresses (DHCP Server disabled) Checking this radio button to enable this Router to distribute IP Addresses (DHCP enabled). And the following field will be activated for you to enter the starting IP Address The starting address of this local IP network address pool. The pool is a piece of continuous IP address segment. Keep the default value 192.168.1.1 should work for most cases. Maximum: 253. Default value 253 should work for most cases. Note: If Continuous IP address poll starts is set at 192.168.1.1 and the Number of IP address in pool is 15 253, the device will distribute IP addresses from 192.168.1.1 to 192.168.1.253 to all the computers in the network that request IP addresses from DHCP server (Router) Click the Config. button to enter the Static DHCP page. Enter IP and Network adapter MAC addresses for Static DHCP and click the Add button to save the settings. Click Delete All to clear all entries. Click the Index drop-down menu to select the desired entry number and then click Delete to delete only the selected one. You can add up to 32 static DHCP IPs. Click Back to return to the Local Port page to continue When necessary, enter the IP Address of the Windows domain name server. After completing the settings on this page, click Save to save the settings. Click Undo to clear all the settings on this page. Static DHCP IP&MAC addr WINS server Save Undo Figure 14 16 Advanced Setup Management Figure 15 Enter the new password. Re-enter the new password for confirmation. Change Administrators password: change the password for the device. New Password Confirm New Password Limit Management Click to enable this function. Enables two stations to manage this IP Share through Web configuration. Enter the MAC addresses of the stations you selected for management. After the setup is completed, only the assigned stations with correct password authentication can manage this IP Share device. Section 1 MAC Address Section 2 MAC Address Enter the first management station s network adapter MAC addresss. Enter the second management station s network adapter MAC address. If you are only setting up one management station, leave Station 2 MAC address with all F. Click to enable this function. Blocks requests from Internet to the local network. If this item is checked, the function of management through Web configuration will be disabled. In other words, Internet requests and the HTTP management, namely ICMP, IDENT, and HTTP will be rejected. Block Internet Request 17 Management via Internet Allows management of this device via HTTP from Inter-
net. This field will be automatically disabled when Block Internet Request is checked. If Block Internet Request is not enabled, you can choose to enable/disable this function. Below are coordinate results of Block Internet Request and HTTP management for this device. Refer to this table for further Internet/system management. V: Checked O: Unchecked Block Internet Request V O O Manageme nt Via Internet
(automatical O ly) V O Coordinate Result WAN requests over TCP 113 (IDENT) and ICMP are rejected. HTTP management is not allowed. WAN requests over TCP 113 (IDENT) and ICMP are accepted. HTTP management is allowed. WAN requests over TCP 113 (IDENT) and ICMP are accepted. HTTP managements is not allowed. Modify the configuration port Enable Check to modify web configuration port number settings. Web Configuration port Input the port number for web configuration. The default web port for configuration is set to 80. If you want to set the port to other port, input that port number and click SAVE. Once the web configuration was modifiied, configuation over web should be changed with the new setting; e.g. if the web configuration port was set to 8080, to login the web configuration, you need to input the address like:
http://192.168.1.254:8080 (where 192.168.1.254 is Routers local port IP address.) None Standard FTP Port Number Check to modify FTP port port number setting. FTP Port Number The standard FTP port is set to port 21. You can set it to other port as long as they are free to use. Save Undo changing the setting(s), click Save to save the setting(s) Click Undo to clear all the settings on this page. Virtual Server In this page, you can set up a local server with specific port number that stands for the service (e.g. web(80), FTP(21), Telnet(23)). When this device receives an incoming access request for this specific port, it will be forwarded to the corresponding internal server. You can add virtual servers by either port numbers or by names. 18 Maximum 24 Server entries are allowed and each port number can only be assigned to one IP address. NOTE: Setting up Virtual Server is like opening the firewall, which exposes your network to users on the Internet. Which means the IP Shares NAT will no longer be able to provide protection from hackers. Figure 16 Add Vitural Server Method By Name By Port Application
(Port) Port Type Single/Range, Port Number Local Server IP Address Undo Add You can select to set up a virtual server either by name or by port number. Select and click to scroll down. Select from the most popular server applications for Virtual Server. Select the port type (TCP or UDP) for the port number that was entered earlier. For selecting a specific port or a range of ports which you want the Internet users to be able to access. The valid port number ranges from 0 to 65535. Enter the Local Servers IP address (for the specified port entered above). Click Undo to clear all the settings on this page. Each time you finished setting, click Add and the added servers will appear on the Server List. 19 20 Figure 17 Server List Delete All Delete Display all the virtual servers. Click to delete all the servers on the list. Click the Index drop-down menu to select the desired server number and then click Delete to delete only the selected server. Figure 18 DMZ Host Function:
If the DMZ Host Function is enabled, it means that you set up DMZ host at a particu-
lar computer to be exposed to the Internet so that some applications/software, especially Internet / online game can have two-way connections. You can enter up to four DMZ Hosts in the device. DMZ WAN IP Address DMZ LAN IP Address Enter the local IP address mapping to the client computer, which you want to use as the DMZ Host computer. Enter the WAN IP Address set for DMZ Host. Undo Add DMZ List DELETE ALL Delete Click to clear all the settings on this page. After completing the settings on this page, click Add to save the settings. Display all the DMZ hosts. Click to delete all the DMZ host(s) on the list. Click on the Index drop-down menu to select the desired host number and then click Delete to delete only the selected host. Packet Filters In the Packet Filters setup screen, you can block specific internal users from accessing the Internet and you can also disable specific Internet services. You can set up the filters through the following two filters: Network Adapter Address
(MAC address) and IP Address. Each filter can be set to Filter (drop) or Forward
(pass) packets. You can input up to 24 filters in this device. Figure 19 NETWORK ADAPTER ADDRESS FILTER Filter according to local computers network adapter MAC address (also known as the adapter cards Physical Address). FILTER FORWARD ADAPTER ADDRESS IP Address Filter Filter with computers IP address. Filter/Forward SELECT TO FILTER OR FORWARD FOR THE FOLLOWING ADAPTER ADDRESSES. ENTER THE DESIRED ADAPTER ADDRESSES. Select to Filter or Forward for the following IP Ad-
dresses. You can filter a single IP, or a range of the IP ad-
dresses. Single/Range 21 IP Range Direction From Local IP To Remote IP Enter the Start and End IP addresses for a range of IP addresses for filter/forward. Filtering IP address of a local computer; or filtering IP address of a remote server (this remote server connects to the device via Internet). Figure 20 TCP/UDP Port Filter Filter using the port number. You can set filter for a single port or a range of ports. Filter/Forward Single/Range Port Number Port Type Add Undo Filter List Delete All Delete Select to Filter or Forward for the following assigned port(s). You can filter a single port, or a range of ports The port number(s) for the filters.
TCP UDP: filter according to the Connection-
remote server Based Application Service on the using the port number. Each time you finished setting the filters, click the Add button and the added filter will appear on the Filter List Click Undo to clear all the settings in this categrory Display all the Packet Filters. Click to delete all the filters on the list. Click on the Index drop-down menu to select the desired filter number and then click Delete to delete only the selected filter. Static Route You can set static routes to manually administrate the network topology/traffic when the dynamic route is not effective enough. 22 To set static routers, select Static Route #1 or Static Route #2, enter the settings. You can refer to the following two example applications for settings. When finished, click Save to save settings. Click Undo to clear all entries. Static Route #
Destination Network Host Network Mask Gateway The network mask for the remote LAN Segment. The IP address of the gateway which this router must use to communicate with the destination above. The network address of the remote LAN Segment. Figure 21 Dynamic DNS The Dynamic DNS (require Dynamic DNS Service) enables you to alias a dynamic IP address to a static hostname, this allows your device to be more easily accessed by specific name. When this function is enabled, the IP address in Dynamic DNS Server will be automatically updated with the new IP address provided by ISP. 23 Figure 22 o Dynamic DNS Enable
DNS Account User Name Password Click to enable this function and make the settings available. Click on the question mark to find out more about Dynamic DNS Service. Note: If you dont already have the Dynamic DNS Service, please click on the ? and then follow the instructions to sign up for the service. Enter your host domain name. Click the down arrow 6 to select your Dynamic DNS client with which you registered for the ser-
vice. Enter your user name, which was registered with the Dynamic DNS client. Enter your password, which was registered with the Dynamic DNS client. o Enable Wildcard Check to enable the Wildcard function. To know more about Mail Exchanger Backup MX?
Status Undo Save Wildcard, please refer to FAQ section. To know more about MX (Mail Exchanger), please refer to FAQ section. Check to have Backup MX service enabled. Displays the results of the action. If action failed, click Force Update IP to enable the function. Click to clear all the settings on this page. After completing the settings on this page, click Save to save the settings. 24 Network Status Connection Status Display the current Internet connection status. After the device is connected to the Internet Service, you will see IP, Subnet Mask, Gateway and DNS IP addresses on the table. Figure 23 RELEASE/DISCONNECT Click on this button to disconnect from ISP and release all RENEW/CONNECT the IP information on the Internet Port. Click on this button to reconnect to the ISP and renew all IP information on the Internet Port. Sessions List Displays active Internet sessions through this device. Figure 24 REFRESH Click on this button to refresh the list and get the latest session list. 25 T/U IP Client/ Port Client Port Fake IP Remote/Port Remote Idle Display TCP or UDP port type. The local network IP address/port number of one end point of the session. Featuring NAT, the Port Fake is used to translate the local network IP addresses for connecting to the Internet. The outside network IP address/port number of the other end of the session. The idle time of the session. If the idle time is too long (more than 15 minutes), the device will disconnect the idled session. Users List Displays the current active users. REFRESH Click this button to refresh the list. Figure 25 Others Factory Reset To reset to factory default setting, click the GO button. Please note that performing the Factory Reset will erase all previously entered device settings. 26 Figure 26 Save Configuration This function enables users to always save the current configurations as a file (i.e. config.sav), so that no re-entry is required when users want to switch between various configurations. To load configuration from file, enter the file name or click Browse to find the file from your computer. Figure 27 Figure 28 Figure 29 Save Undo Load Click Save to save the current configuration to file. Click to clear the input. Click to start loading configuration from file when you are done with the previous settings. 27 When prompted the upper left screen, select Save this file to disk, and the upper right screen will prompt you a dialog box to enter the file name and the file location. Please note that the configuration file is in .sav format. Load Configuration From File File Path/Name Browse: If you want to load a configuration file, enter the file name with the correct path and then click on Load. Or click Browse to select the file. Figure 30 Firmware Upgrade 1. Download the latest firmware from your distributor and save the file on the hard drive. 2. Make sure all computers in the network are off; or connect the HighSpeed Internet Router directly to the PC that has the new firmware. 3. Start the browser, open the configuration page, click on Others, and click Firm-
ware Upgrade to enter the Firmware Upgrade window. Enter the new firmwares path and file name (i.e. C:\FIRMWARE\firmware.bin). Or, click the Browse button, find and open the firmware file (the browser will display to correct file path). 4. Click Undo to clear all the settings on this page. Or click UPGRADE NOW to start the upgrade. Figure 31 28 FCC Warning Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the follow-
ing 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. NOTE: 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:
o Reorient or relocate the receiving antenna. o Increase the separation between the equipment and receiver. o Connect the equipment into an outlet on a circuit different from that to which the receiver is needed. o Consult the dealer or an experienced radio/TV technician for help. CAUTION:
1. To comply with FCC RF exposure compliance requirements, a separation distance of at least 20 cm must be maintained between the antenna of this device and all persons. 2. This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter 29