Please choose an option below:
- Attaching a screen to Turnigy 9XR - Turnigy 9XR + Monitor + Receiver with one battery
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HKPilot Mega 2.7 Master Set 433 MhzThe HKPilot Mega 2.7 Master Set from Hobby King is a Plug and Play system with everything you need for autonomous flying. It can be used on Multirotor or Fixed wings. It is based on fast evolving and amazing APM (Ardu Pilot Mega) from 3DR project. It includes a flight controller, two telemetry radios (433 Mhz or 915 Mhz), a GPS unit, MinimOSD, a power module, and all the necessary cables. So it makes a complete system with everything included. This controller is compatible with the APM software and firmware so you can upload the latest firmware to and there are a lot of hobbyists doing a great job on documenting, developing and explaining hacks, tips and tricks about this great flight controller. Below you will find a video tutorial on how to wire everything up and how to connect the Master set to your cellphone (in this case Android but it can be other os as well, you only have to download the apps). The video describes only the wiring, not the setup of the Flight controller through the Mission planner. The next step will be setting up the flight controller through the mission planner.
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27, 35, 40, 72 Mhz have been used earlier and still are being used now days, from hobbyists. From then things have changed and evolved. Now days the most commonly used frequency for radio TX/RX is 2.4 Ghz. It is a frequency that is being used for LOS (Line Of Sight) and medium range flights using better antennas. There is also an increase in using the 433 Mhz frequency, which is also considered as LRS (Long Range System). The lower the frequency, the greater the range. The 900 Mhz frequency is also a great option but if you live in Europe you should forget about it because the cellular network uses the 900 Mhz band so there will be interference between your radio and the network.
The bigger the difference between your radio and video frequency, the better it is. |
Having the FrSky DF 2.4 Ghz Combo for JR , kinda forced me to go for a 5.8 Ghz VTX/VRX. There are a lot of options regarding the 5.8 Ghz video transmitting out there, and the prices also vary a lot. So you can go with a cheap system to begin with FPV and progress with the time ore you can buy a more expensive system and use it on several planes. I wanted to go with a rather cheap solution by ordering a SkyZone 5.8Ghz 500 mW Transmitter and a SkyZone RC805 5.8Ghz 8 Channel AV Receiver. With good antennas I was aiming for a 5 - 7 km distance of flight. Ordered these from HK but they got lost, so after a long time waiting for the order, I found a 2.4 Ghz 1W Trasmitter/Receiver system that I had there just laying around and never really used it. So I had to change my plans. But using this system would interfere with my 2.4 Ghz FrSky TX/RX radio system that I had, so I thought of ordering another Radio TX module and receiver from HK after getting my money back.
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So I ordered an Orange Open LRS 1W 433 Mhz Transmitter (always JR compatible because my Turnigy 9XR radio is a JR type) module and an Orangerx Open LRS 433 Mhz 9ch receiver. The Open LRS stands for Open source Long Range System. So this is a better solution because the difference of the frequencies between the radio and video is bigger and the range of both systems would be greater because of lower frequencies. Since these are open source modules, you have to know some things about uploading firmware to them. Instead of the receiver, you can also purchase two 1W transmitter modules and then flash one of them as a receiver. This way, if you do the telemetry mod on your 9XR or if you have another telemetry capable radio, you will have a 1W two way telemetry system which is amazing. There are two major things that are crucial on getting the desired range. The first thing is the power of the transmitter ( measured in mW - miliWatts or W - Watts) and second the antennas. You can read more about antennas on the Antenna page. So the first factor in improving or reducing the range is the power of the transmitter.
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After receiving the Quanum DIY FPV Goggles from Hobbyking, I was happy because they were: 1. My first FPV goggles, 2. Cheap, 3. Small and light. So I started to assemble them and tried them using a Mini DVD player as video source. The KIT comes with 3 pieces credit card sized fresnel lenses. They have different magnification factor (2x, 3x, and 5x I would guess) and after trying them all, the middle one was my choice. But after assembling and trying them out, there were few things I didn't like about these goggles and I needed to change them. The first thing I didn't like was the frame that holds the lens inside the goggles, which was limiting the view.
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The second was the screen which needed to be put in an angle to be able to see better. I also didn't want to glue the goggles together and I wanted to be able to open them and change the lens or modify them maybe in the future, so instead of gluing them together, I wanted to use either velcro or rubber band, and modified the strap for better usage in this case. These are the mods that you will see in the video. But later i decided to do e few more mods: Desolder the heavy cables and solder servo wires instead, make a pocket on the left side of the strap for the receiver and another pocket on the right side for the battery.
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