Tag: Radio
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How to Set Up ImmersionRC Ghost GPS Telemetry for FPV
ImmersionRC Ghost 2.4GHz long-range LoRa based radio system was announced a year ago and is available on the market for only a little shorter. In this time, ImmersionRC put quite an of effort into making it better, but for unknown reasons always ignored one very important aspect of a long-range radio control link: telemetry!
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QmuBeacon – ESP32 and LoRa based GPS recovery beacon and locator
Having a broken leg, limited mobility, and paid sick leave have some perks after all. I’ve finally found some free time to sit on the project I started, I think, two years ago: ESP32, LoRa based GPS beacon, and locator. You know, put it on an airplane and have a way to get the distance…
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FlySky FRM302 & FTR16S AFHDS3 – The Ultimate 2.4GHz Long-Range Radio System
ImmersionRC Ghost is the new long-range 2.4GHz radio system that is getting the most traction in the media in the last few days. However, IRC Ghost is not the first 2.4GHz SX1280/SX1281 LoRa based radio system that has hit the market. FlySky FRM302 TX module and FlySky FTR16S AFHDS3 receiver are available since May 2020,…
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The best RC radio transmitters for Q2 2020
The last year was a good year in terms of new radio transmitters. It’s no longer a choice between FlySky and FrSky. We have new players and new products. Below is my, very subjective, overview of the most interesting radios on the market. Still the best – FrSky X10S Horus In my very personal opinion,…
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FrSky R-XSR pinout
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How to make 868MHz or 915MHz dipole antennas for FrSky R9 or TBS Crossfire receivers
The correct length of 868/915MHz antennas used by FrSky R9 and TBS Crossfire is: From time to time FrSky has a big problem with cutting their antennas to a correct length. Good thing, you can make your own TBS Crossfire RX antennas for cheap! In this tutorial, you’ll learn how to build your very own…
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LoRa versus FSK modulation signal spectrum
LoRa modulation is a wireless communication technique designed for long-range, low-power data transmission. It is based on Chirp Spread Spectrum (CSS) modulation, which spreads the signal over a wide frequency range, making it robust against interference and noise. This technology is particularly useful for Internet of Things (IoT) applications, where devices need to communicate over…
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Testing 868MHz LoRa range, part 1: urban area
With a (more less) free evening I decided to finally start testing range of 868MHz LoRa E45-TTL-100 radio modules I described only yesterday. Instead of building new testing rig, I only upgraded testing setup I used to test range of FS1000A and XY-MK-5V 433MHz radio modules. Few hours later I came up with this: I’ve…
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E45-TTL-100 868MHz LoRa wireless modules
My quest for ultimate (?) DIY telemetry system for UAVs continues. Last year I was playing with HC-12 433MHz wireless modules with pretty decent results. After all, more than 1km of range for a few bucks is more than acceptable. Still, HC-12 has at least few problems: