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They offer a version for VHF and one for UHF the band they call V-segment and U-segment respectfully. It is recommended to select the VHF V-segment option for North America even though UHF is in limited use. VHF has better terrestrial performance. The standard VHF APRS frequency for North America is <big>'''144.390 MHz'''</big>. There is no standard UHF frequency for North America. APRS is often used to track the location of vehicles or people, such as hikers or search and rescue teams. It can also be used to transmit weather data, such as temperature, pressure, and wind speed, using weather stations connected to the APRS network.Program the tracker with the software. The software is Microsoft Windows only requiring .NET 4. == Programming ==Software settingsProgram the tracker with the software. The software is Microsoft Windows only requiring <s>.NET 4.</s># Power on the tracker. # Connect the USB cable between tracker and computer.correction: Although literature on the device suggests .net 4 is required during testing it was .net version 3.5 something that actually installed. # Install USB driver – CH341 chip and find the correct COM port. # Use APRS 51Series Setup(version number).exe to program the tracker.Windows and Linux: Since the Chinese software programming application does not appear to be compatible under WINE it is likely best to pursue use of virtualization in order to succeed on Linux. We are going to accomplish this with [VirtualBox] and Windows 7. Windows users can skip the initial virtualbox related steps. For Linux users it will be assumed you have established a working Virtualization Image using Windows.#'''Connect the USB cable to the X1C5 and your PC.''' The device '''needs to be powered on''' to be programmed however will be detected on Windows and Linux either way. (current kernels)#Launch VirtualBox#On the Windows VirtualBox image choose SETTINGS -> SERIAL PORTS -> Port 1 and...#Check box labeled "Enable Serial Port" and Port Number use COM1 (''or whatever you desire'')#Path/Address set to: /dev/USB0 (''or USB1 if you have more than one virtual USB device although it is recommended to disconnect all others'')#Click OK and start the Windows Session (Normal Start)#'''Windows launch the AAPRS 51Series Setup.exe'''#Click the radial under Language, select English - which changes much of the interface but not all to English#Click the "Serial" button and wait for the COM Port dropdown dialog to populate with the option of your port, probably COM1#After selection COM1 click the OPEN button, wait a moment and follow up by clicking the "Read" button.#When completed entering your settings click the "Write" button and "Close" button then terminate the programming software application.* Windows users can skip steps 2 - 6* A tip for VirtualBox users, remember to go into the image settings after you're done and have shutdown/stopped the image session and Settings -> Serial Ports, and disable the Serial port (uncheck box) so that you are able to use the virtual image after you've later disconnected the APRS USB device, or your image will not start in its absence!* If not connected to an antenna be sure to connect the APRS device to a dummy load while it is powered on during programming. There needs to be a 50 ohm approximate load. Driver and Software Recap:# Install USB driver (Windows) – CH341 chip and find the correct COM port. Linux Auto-detects.# Use APRS 51Series Setup(version number).exe to program the tracker. Not compatible with WINE.Some Settings to be aware of and tips:* The field "Icon 1" is where you use ASCII characters as a symbol to represent your station type, such as HUMAN PED, AUTO, AIRCRAFT, ETC... the person icon is represented as /[ (forward slash, forward square bracket); the car is /> (forward slash, greater-than).* Beacon Time setting: it is considered somewhat rude to ping APRS receivers to death. For a mobile setup choose 300 S or greater. Chinese default to 60 seconds is not recommended in a dense urban area. * Ham radio license + Call Sign is a requirement if operating amateur radio frequency such as 144.390 VHS STD.=== Software ===Software is Windows only. Requires Microsoft .NET FrameworkLast known source for software and manual:* [https://venus-itech.com/download/X1C5%20Pro%20Manual.pdf X1C5 Pro portable APRS tracker Manual]* [http://venus-itech.com/download/APRS_51Serial_20190723.rar APRS setting program]''For linux users it is not verified if this program can be ran under WINE. If tested and succeed then the process will be posted below in winetricks section.''=== powers off during use ===The X1C5 has a timed power-off feature. When it powers off, it will disconnect. Set it to "never off" in software. Also, it may shut off if the battery voltage falls. Always keep a charger on it.BRLTTY, a program that "provides access to the Linux/Unix console (when in text mode) for a blind person using a refreshable braille display" conflicts with the USB-serial converter chip in the X1C5. The Braille screen reader and devices that use the CH340 (341) based chip will conflict.BRLTTY, a program that "provides access to the Linux/Unix console (when in text mode) for a blind person using a refreshing braille display" conflicts with the USB-serial converter chip in the X1C5. The Braille screen reader and devices that use the CH340 (341) based chip will conflict.Keep in mind that this device is not supported in Linux, however, if you are working on communicating with it in Linux for experimentation you will have to disable BRLTTY on your linux machine. This frees up /dev/ttyUSB0 for serial communication with this device.Keep in mind that this device is not supported in Linux, however, if you are working on communicating with it in Linux for experimentation you will have to disable BRLTTY on your linux machine. This frees up /dev/ttyUSB0 for serial communication with this device. Using information in [[USB Device Diagnostics in Linux]] you can see if the device is detected, and look for errors. Hint: ''udevadm monitor --udev, dmesg''== Related ===== running software under wine ===Documented attempt to run programming software under linux with wine. It was mentioned on a support web site that the software requires .NET 4.0, however, while testing the software on a windows machine it indicated .NET 3.5x. You will have to install and configure [[Wine]] for your distribution. Info here based on Debain/Ubuntu/Mint..You will have to do [[Serial Port Access in Wine Troubleshooting]].Identify the serial port for the device. in /dev you should see the following: /dev/ttyUSB0 then identify and inspect the port with the device connected and on. tty -F /dev/ttyUSB0 -a to launch the software wine ./APRS\ 51Series\ Setup\ 20190723.exeIssue #1: no com ports visible to software. Make sure it exists: ls /dev/ttyUSB*Wine serial port mappings are visible in ls ~/.wine/dosdevicesTo override or create a serial port mapping for /dev/ttyUSB0 wine regeditWe could get the software to load, communicate on the com port with the device, however each time it immediately crashes after initial communication.[[File:aprs51seriessetupcrash.jpg]]== Related ==* [[APRS]]* [[APRS X1C5 Portable Gate]]