Download SmartAudio 2.0(USA) by right clicking on the mouse control on your computer and ‘Save link as…’<\/p>\n\n\n\n
After that, open the Betaflight software on your computer and connect it to the FPV drone, then go to the ‘Video Transmitter’ tab then click ‘Load from file’<\/p>\n\n\n\nEnter data by clicking on the downloaded file, then click open. Automatically the Frequency table on the Video transmitter will be filled in as shown in the following image.<\/p>\n\n\n\nOr use the second method by entering data via CLI by copying the data that I have included below:<\/p>\n\n\n
\n
Then go to CLI (Command Line Interface). You can paste and click ‘enter’. Betaflight will automatically reboot and the frequency table on the video transmitter will be available.<\/p>\n\n\n\nOnce on the Video Transmitter tab the VTX Frequency and Output power data appears, the next step is to adjust the Power Levels Number according to the VTX Power used, then set which channels to use and how many milliWatts of power output to use.<\/p>\n\n\n\n
Here’s how to set Band, Channel and Power:<\/p>\n\n\n\nBefore you proceed with the settings, you must first familiarize yourself with the parts and functions of the menu in the ‘Selected Mode’.<\/p>\n\n\n\n
As we can see, there is a ‘Band’ here, which when clicked will display options such as ‘BOSCAM_A’, ‘BOSCAM_B’, ‘BOSCAM_E’, ‘FATSHARK’, and ‘RACEBAND’.<\/p>\n\n\n\n
When you click on ‘Channel’, options from ‘Channel 1’ to ‘Channel 8’ will appear.<\/p>\n\n\n\n
Each VTX has different power outputs. When you click on the ‘Power’ section, options like 25, 200, 500, 800 usually appear.<\/p>\n\n\n\n
After understanding these, you can select the channel as needed. For example, if the VTX being used will be set to R3, then in the ‘Selected Mode’, change the ‘Band’ to ‘RACEBAND’ and the ‘Channel’ to ‘Channel 3’, or if the VTX is to be set to F7, simply change the settings to ‘FATSHARK Channel 7’.<\/p>\n\n\n\n
For the power section, you also need to adjust it according to your needs. For example, to 200mW. If ‘Low Power Disarm’ is needed, just set it to ‘on’. ‘Low Power Disarm’ is responsible for setting the VTX output power to the lowest position when the drone is not armed. Usually, the VTX is at 25mW and when armed it will increase to 200mW if you set it to 200mW.<\/p>\n\n\n\n
The advantage of enabling ‘Low Power Disarm’ is that the VTX does not overheat quickly when the drone is powered on, but the disadvantage is that when you fly the drone with a fairly long range and then crash and disarm, the goggles’ view to the drone will be disconnected because the VTX output power returns to 25mW, which is not enough to connect the range between the drone and the goggles.<\/p>\n\n\n\n
<\/span>Adjusts the Center Frequency Value on the Antenna<\/span><\/h3>\n\n\n\n<\/span>Why is There So Much Frequency Data in the VTX Table?<\/strong><\/span><\/h4>\n\n\n\nFrequency options in the FPV VTX (Video Transmitter) table are usually provided in various choices to accommodate different types of equipment and environmental conditions. Additionally, the purpose is to provide flexibility to users to adjust the frequency that best suits their equipment and to avoid frequency clashes with other devices in the vicinity when flying FPV drones simultaneously, such as during racing. With so many frequency options, users can find less congested channels for their video transmission, thereby improving signal quality and their flight experience.<\/p>\n\n\n\n
It’s important to choose a frequency that matches the midpoint value of the antenna to maximize its performance. Antennas have optimal performance at certain frequencies, usually referred to as ‘resonance’. Choosing a frequency that matches the midpoint value of the antenna will enhance signal transmission efficiency and reception quality, optimizing the range and stability of video signals on FPV devices .<\/p>\n\n\n\n
There are many types of antennas for FPV VTX, and different types of antennas also have differences in their frequencies. Here’s how to determine the midpoint value of the antenna to match the frequency value between the antenna used and the VTX.<\/p>\n\n\n\nRush FPV Cherry 5.8GHz Ultra ExtendedBand Width: 5600-6000MHzThe Rush Cherry antenna type has a frequency value of 5600 – 6000MHz. To determine it, add 5600 + 6000 = 11600 then divide the result by two, which is around 5800, and check the VTX table for the corresponding value, which is Channel F4.<\/td><\/tr> 5.8G Lollipop 3 Long version AntennaCenter frequency: 5750MHzFor the Lollipop antenna, the center frequency value is already provided. We need to look at the table to find the same or close value, which is close to frequency B2, i.e., 5752.<\/td><\/tr> Lumenier AXII 2 Long Range Right-AngleBandwidth: 5.3GHz-6.2GHzFor this type of antenna, the process is the same; add its values and divide by two. The result is 5.3 + 6.2 = 5.72. The corresponding or close frequency value in the table is Band B2.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<\/span>Optimizing FPV VTX Settings via OSD for Better Video Quality and Range<\/span><\/h2>\n\n\n\nTo begin setting up the OSD, first, turn on the transmitter, then power up your FPV drone by connecting the battery and wait until it connects. After that, turn on the goggles for monitoring while setting up via OSD. To access the setting options, you need to perform a joystick combination on the transmitter. Move the right stick upwards and push the left stick to the left, as shown in the following diagram:<\/p>\n\n\n\nBy moving the joystick simultaneously, the Settings display in the OSD will appear.<\/p>\n\n\n\n
<\/span>Understanding the Joystick Functions for Control<\/span><\/h3>\n\n\n\nOnce the setting options appear on the goggles display, the next step is to understand how the joystick works in navigating the OSD settings. So, the joystick on the right is used to navigate the menu settings on the OSD.<\/p>\n\n\n\n
There are two functions on the right joystick: <\/p>\n\n\n\n
\nWhen you move the joystick upwards, the pointer arrow will move upwards; <\/li>\n\n\n\n When you move it downwards, the pointer will move downwards. Moving it to the right selects the menu item.<\/li>\n<\/ul>\n\n\n\nOn the other hand, the function of the joystick on the left is to quickly save by moving the joystick to the right and selecting ‘save’. To return to the previous menu, move it to the left.<\/p>\n\n\n\n
<\/span>Power Output Setting using OSD<\/span><\/h3>\n\n\n\nOnce you understand the function of the joystick, go to the OSD menu and look for the Features option\uff1a<\/p>\n\n\n\nEnsure that the VTX configuration options are enabled. This often includes items like “VTX Channel”, “VTX Power”, and “VTX Band”.<\/p>\n\n\n\n
Select VTX next, you can adjust the power on the VTX and also change the Band and Channel. If you want to change the VTX power, select the Power menu using the joystick, then move the joystick to the right to increase the mW and to the left to decrease the mW on the VTX. For example, 25mW, 200mW, 500mW, or 800mW. The same goes for changing the Band or Channel.<\/p>\n\n\n\nAfter you’ve selected the transmission power as needed, make sure to always save those changes by moving the joystick downwards until you find the ‘back’ option, then look for the ‘save’ option to store the settings, or move the left joystick to the right for a quicker save.<\/p>\n\n\n\n
Once you’ve saved the settings, ensure to always check that the VTX power settings have changed according to your specifications. This can be done by checking the OSD display to see if the selected transmission power has changed or not. If it hasn’t changed, it could mean that the power output hasn’t been successfully saved, and you may need to redo the settings if necessary.<\/p>\n\n\n\n
<\/span>Using SmartAudio in Flight<\/span><\/h2>\n\n\n\nOnce everything is set up, you can start using SmartAudio to control your VTX from the OSD.<\/p>\n\n\n\n
<\/span>Accessing VTX Settings<\/span><\/h3>\n\n\n\n\nEnter the OSD menu: Use your radio controller to access the OSD menu. This is usually done by moving the control sticks to a certain position (such as holding the left stick to the center and the right stick to the left).<\/li>\n\n\n\n Navigate to the VTX menu: Once in the OSD menu, use the sticks to navigate to the VTX configuration option.<\/li>\n\n\n\n Change the settings: You can now change the VTX band, channel, and transmission power directly from the OSD menu. The changes take effect immediately, which is very convenient for adjusting settings during flight.<\/li>\n<\/ul>\n\n\n\n<\/span>Tips for Optimal Use<\/span><\/h3>\n\n\n\n\nFollow regulations: Make sure to comply with local laws regarding allowed transmission power levels.<\/li>\n\n\n\n Avoid interference: Change channels if you encounter interference with other pilots or signal sources.<\/li>\n\n\n\n Optimize transmission power: Use the minimum necessary transmission power to achieve good signal quality. Higher power consumes more battery and can generate more heat.<\/li>\n\n\n\n Regularly check connections: Periodically inspect all connections to ensure that wires and solder joints are secure. Loose connections can lead to signal dropouts and intermittent issues.<\/li>\n\n\n\n Use quality components: Invest in high-quality VTX, antennas, and other related components. High-quality parts can significantly improve the reliability and performance of your video transmission system.<\/li>\n<\/ul>\n\n\n\n<\/span>Troubleshooting Common Issues<\/span><\/h2>\n\n\n\nDespite careful setup, problems can arise. Here are some tips to resolve them:<\/p>\n\n\n\n
<\/span>No Communication with the VTX<\/span><\/h3>\n\n\n\n\nCheck connections: Ensure all wires are properly soldered and connections are not loose.<\/li>\n\n\n\n Check UART settings: Make sure the correct UART port is configured for SmartAudio in Betaflight Configurator.<\/li>\n\n\n\n Update firmware: Check if your VTX and flight controller have available firmware updates and apply them if necessary.<\/li>\n<\/ul>\n\n\n\n<\/span>OSD Doesn’t Show VTX Options<\/span><\/h3>\n\n\n\n\nCheck OSD configuration: Ensure VTX options are enabled in the OSD tab of Betaflight Configurator.<\/li>\n\n\n\n Check video connections: Ensure the VTX video wire is correctly connected to the flight controller.<\/li>\n<\/ul>\n\n\n\n<\/span>Video Signal Issue<\/span><\/h3>\n\n\n\n\nChange channel or band: If you encounter interference, try changing the VTX channel or band.<\/li>\n\n\n\n Check the antenna: Ensure the VTX antenna is properly attached and in good condition.<\/li>\n<\/ul>\n\n\n\n<\/span>Conclusion<\/strong><\/span><\/h2>\n\n\n\nSetting up SmartAudio for VTX control from the OSD is an essential skill for any FPV drone pilot. After following this guide, you will now be able to configure your system to gain complete control over your video settings, enhancing your flight experience and race performance. With proper setup, you can quickly adjust settings based on conditions, which is a significant advantage in the competitive world of FPV. Moreover, being able to make real-time adjustments to your VTX settings directly from the OSD can save you precious time and effort, especially during races or when flying in different environments. This flexibility allows you to optimize your video transmission for the best possible quality and minimal interference. <\/p>\n\n\n\n
Additionally, understanding and mastering this technology will not only improve your piloting skills but also give you an edge over competitors who may still rely on manual adjustments. Embracing these advanced features can lead to more efficient flights, better signal clarity, and an overall more enjoyable flying experience.<\/p>\n","protected":false},"excerpt":{"rendered":"
Racing drones and FPV (First Person View) drones are increasingly popular among flight enthusiasts. For these pilots, having complete control over their video system is crucial. SmartAudio is a technology that allows you to adjust the video transmitter (VTX) settings directly from the On-Screen Display (OSD). This detailed guide explains how to set up SmartAudio to control the VTX from the OSD. FPV VTX: Get to Know the Installation and Settings of VTX Smart Audio The FPV VTX (Video Transmitter) plays a crucial role in FPV drones, transmitting video signals from the drone\u2019s camera to the goggles worn by the pilot. The power output on an FPV VTX can vary widely, offering levels such as 25mW, 200mW, 600mW, and even up to 1W. This variability allows pilots to adapt to different flight environments: However, manually changing the VTX power output can be time-consuming and inconvenient, especially when transitioning between different flight locations. The introduction of VTX Smart Audio revolutionizes this process by enabling pilots to adjust the power output directly through their flight controller or OSD (On-Screen Display). This eliminates the need for manual adjustments, saves time, and provides greater flexibility during FPV sessions. To help readers to get a better understanding, here are steps on how to install the VTX Smart Audio and set the Betaflight and OSD. What is VTX Smart Audio Smart Audio is a communication protocol developed by TBS (Team BlackSheep) that allows pilots to configure VTX settings directly through the flight controller (FC) or On-Screen Display (OSD) system. This capability simplifies adjustments such as frequency, transmission power, and other<\/p>\n","protected":false},"author":11,"featured_media":6003,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[431,1,436,437],"tags":[448,462,464,99],"collection":[],"class_list":["post-5994","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-beginner-guide","category-featured-posts","category-parameter","category-tutorial","tag-camera","tag-fpv-system","tag-programming","tag-vtx"],"yoast_head":"\n
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