How to Upload an NMEA Stream by Way of an IP Address
Combing data from devices such as a GPS unit is done by using a multiplexer. One type of multiplexer used for this purpose is the Brookhouse NMEA. The multiplexer sends a single data stream to the navigation program installed on your computer. This is typically done via a COM post using a serial connection by an attached cable. However, you can also send this data via WiFi to a tablet computer such as an iPad.
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Things You'll Need
- Laptop with WiFi support
- Virtual Serial Ports computer program
- iPad computer
Instructions
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Set Up WiFi Connection
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1
Click the “Start” button, then type “Network Connections” into the search box. Click the option for “View network connections.”
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2
Right-click the icon for “Wireless Network Connection.” Click the option for “Properties” on the context menu. This will display the Wireless Connection Properties window.
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3
Go to the “General” tab and double-click the option for “Internet Protocol (TCP/IP).” You will now see the Internet Protocol window appear on the screen.
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4
Enter “169.254.1.9” into the text box for “IP Address." Enter “255.255.0.0” into the text box for “Subnet mask.” Click the “OK” button to save the changes.
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5
Go to the “Wireless Networks” tab. Put a check in the box for “Use Windows to configure my wireless network.” Click the “Add” button to view the Wireless network properties window.
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6
Type a name for the network into the text box for “Network name (SSID).” Put a check in the “Connect even if this network is not broadcasting” box. Choose “Open” from the “Network Authentication” drop-down box. Choose “Disabled” form the “Data encryption” drop-down box. Click the “OK” button to save the changes.
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7
Highlight the network name in the list and click the “Advanced” button near the bottom of the window. Select the radio button for “Computer-to-computer (ad-hoc) networks only.” Click the “Close” button.
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8
Go to the “Advanced” tab. Select the “On (recommended)” option for the Windows Firewall. Go to the “Exceptions” tab and click the option for “Add Port.” Click the “Change scope...” button. Select the radio button for “My network (subnet) only" and then click the “OK” button. Click the “OK”button on the “Add Port” window.
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9
Click the “OK” button to close the Windows Firewall. Click “OK” to close the “Network Connections” window.
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10
Right-click on “Wireless Network Connection” in the Network Connections window. You will now see the option for a new wireless connection.
Configure Virtual Computer Ports Program
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11
Double-click the icon for the Virtual Computer Ports program to start the program. Click the option for “Device” from the menu bar. This will open a “Specify Device Type” window.
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12
Select the option for “Splitter” from the “Device type” drop down box. Click “Next” to continue.
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13
Select “Com5” from the “Virtual serial port” drop down box. Select the “Com4” option from the “Data source serial port” drop down box.
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14
Click the “Settings” button. Set the “Speed” to 38,400, the DTR/RTS to “No,” the “Parity” to “No,” the “Bits” to “8,” and “Stop Bits” to “1.” Click the “OK” button and click “Finish” to save the changes.
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15
Click “Device” from the menu bar. Select the option for “TcpServer” from the drop down box. Click on the “Next” button to continue.
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16
Type “5555” into the “Local TCP port” text box. Select the option for “Com5” from the “Source serial port” drop down box. Enter the serial port settings to match those in Step 4. Click the “OK” button and then click “Finish.”
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17
Click the “File” drop down menu and select the option for “Save As.” Type a name and save the file to the desktop.
Set Up the iPad
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18
Go to the Network Connections window on the Windows computer. Select the new wireless connection, then click the “Connect” option. You will now see the name appear as a WiFi Network on the iPad.
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19
Tap the network name to connect to your Windows computer. Launch the “iNavx” program on your iPad. Tap the option for “Instruments” at the bottom of the screen.
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20
Select the option for “Setup” in the upper right corner. Tap “TCP/IP” in the upper right corner. Type “169.254.1.9” in the “Host” text box. Type “5555” in the “Port” text box. Tap the selection for “Link” to “On.” You are now streaming NMEA data over wireless by using an IP address.
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