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Description
RFD 868x EU V2 Long Range Telemetry ModemRFD868x EU New Features: New Processor, ARM 32 bit core. Air data rate: 200kbit s. AES Hardware accelerated encryption. *Fully working* RC PPM Passthrough with telemetry at the same time. Fully ESD protected + filtered Every IO port is protected and filtered. Original SiK point to point firmware implemented. Note: Currently due to the bandwidth limitations of the 868 modems Asynchronous Mesh and Multipoint Firmware are not officially supported for the
RFD868x-EU New Features:
- New Processor, ARM 32 bit core.
- Air data rate: 200kbit/s.
- AES Hardware accelerated encryption. *Fully working*
- RC PPM Passthrough with telemetry at the same time.
- Fully ESD protected + filtered - Every IO port is protected and filtered.
- Original SiK point to point firmware implemented.
- Note: Currently due to the bandwidth limitations of the 868 modems Asynchronous Mesh and Multipoint Firmware are not officially supported for the 868X modems and correct operation of this code cannot be guaranteed
Features:
- Long range >20km depending on antennas and GCS.
- 2 x RP-SMA RF connectors, diversity switched.
- 500mW (+27dBM) See specifications.
- Transmit low pass filter.
- > 20dB Low noise amplifier, high IP3.
- RX SAW filter.
- All I/O ESD protected and filtered.
- Re implemented SiK and firmware, field upgrade-able, easy to configure.
- Small, light weight.
- Note: Not compatible with older modems
- The standard RFD868x will not communicate with the RFD868x-EU modem unless the standard RFD868x is configured to the same frequency as the EU modem.
Interfaces:
- RF : 2 x RP-SMA connectors
- Serial: Logic level TTL (+3.3v)
- Power: +5v, ~800mA max peak (at maximum transmit power)
- GPIO: 6 General purpose IO (Digital capable).
Specifications:
- Frequency Range: 868-869 MHz
- Output Power: 500mW (+27dBm), controllable in 1dB steps ( +/- 1dB @=20dBm typical)
- Air Data transfer rates: 12, 56, 100, 200 kbit/sec (User settable, 200 kbit default)*
-
UART data transfer rates: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 1M baud (User settable, 57600 default)*
*note these values are correct as of version 3.07 SiK firmware - Output Power: 500mW (+27dBm)
- Receive Sensitivity: >111 dBm at 12 kbps, 105 at 64 kbps and 98 at 200 kbps
- Size: 30 mm (wide) x 57 mm (long) x 12.8 mm (thick) - Including RF Shield, Heatsink and connector extremeties
- Weight: 14.5g
- Mounting: 3 x M2.5 screws, 3 x header pin solder points
- Power Supply: +5 V nominal, (+3.5 V min, +5.5 V max), ~800 mA peak at maximum power
- Temp. Range: -40 to +85 deg C, tested operational from -73 to +123 deg C.
Software / GCS Support:
The software solution is an open source development called "SiK". It has been re implemented to suit the new processor architecture available on the 32bit ARM processor core. A boot loader and interface is available for further development and field upgrade of the modem firmware via the serial port.
Most parameters are configurable via AT commands, Eg. baud rate (air/uart), frequency band, power levels.
Integrated support for configuring the RFD radios is supported by APM Planner.
The default settings are at 57600 baud, N, 8, 1, and 200k air data rate.
The RFD868/900x manual is here: RFD900x Manual
The RFD868/900x SiK software manual is here : RFD900x Peer-to-peer Manual
Software features include:
- Frequency hopping spread spectrum (FHSS)
- Transparent serial link
- Point to Point
- Configuration by simple AT commands for local radio, RT commands for remote radio
- User configurable serial data rates and air datarates
- Error correction routines, Mavlink protocol framing (user selectable)
- Mavlink radio status reporting (Local RSSI, Remote RSSI, Local Noise, Remote Noise)
- Automatic antenna diversity switching on a packet basis in realtime
- Automatic duty cycle throttling based on radio temperature to avoid overheating
Compliance:
RFdesign declare that the equipment is in conformity with the relevant Union harmonisation legislation:
Directive 2014/53/EU on radio equipment
The RFD868x-EU is compliant with the following standards:
- EN 301 489-3 V2.1.1
- EN 300 220-2 V3.1.1
- EN 62311:2008
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
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Product Reviews
★★★★★ 4
Good but Installation was a Bit Iffy
Model: iPad A16 11th/10th/Air 11
90% of the time I use my iPad for school. Originally, I used just a regular screen protector, but it would get dirty with smudges and imprints from my Apple Pencil, and there would be a lot of glare since I'm in a classroom most of the time, which would make it awkward to see what I was writing at times. Plus, the screen protector was too smooth so it would actually be difficult to write legibly.
This product makes it a lot easier to write smoother on the iPad. I only just installed it, so I can't say much on the smear protection yet, but I can already see the reduction in glare as well. For $8, getting a pack of two of these with an install kit is a very nice deal imo.
My only issue was the installation process, which could've been as much my own fault tbh, but I felt like I aligned the screen protector pretty well with the sticker, however the first time I tried installing it it was way off the center (maybe my case got in the way?). The biggest issue was using the squeegee to pop air bubbles, and this is something they don't mention in neither their instruction guide nor video, but you're supposed to used the velvet red side, not the naked white side: using the white side actually takes the grit off the protector, which is obviously something you don't want on a product that relies on it. Thankfully I have another one in reserve in case this one wears off sooner than expected.
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Reviewed in the United States on October 7, 2025
★★★★★ 5
Perfect Paperlike substitute
Model: iPad Air/Pro 13
I’ve been using this screen for roughly two months now and I can say it was so worth it, it is rough on plastic nibs! I am going to order some heavier duty ones and see how it fairs! It works just fine ON TOP of a screen protector isn’t that great!
I wanted something like paper like but didn’t want to pay that expensive price for something I wasn’t sure I was going to like. This one does the trick and gives me just enough resistance to feel more in control of my pen!
It fits well just make sure to know the size if your screen I had to modify where the camera indent was but it cut just fine and looks great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
Game changer for Note Taking
Model: iPad A16 11th/10th/Air 11
Great quality, great price, easy to apply. Has completely changed the way I use my iPad and how it feels to write on it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 5
Feels like paper and makes writing fun!
Model: iPad A16 11th/10th/Air 11
I was hesitant to start using my iPad for class because I HATED how my Apple Pencil sounded hitting the screen while I was writing.
This product has completely changed my mind and now I use it almost daily! I love the feel of this screen and it has lasted all semester long. It was a little tricky getting the screen on just right, and I had to use both because the first time I had a bunch of air bubbles, but the second time was perfect! I think you would probably want to get a new screen every year to ensure it still has that paper-like feel, but I think that’s totally reasonable!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 4
It gets the job done.
Model: iPad 9th/8th/7th, Model: iPad 9th/8th/7th
It isn't too difficult to install, but no matter how hard i tried, I still got some bubbles under the screen. It doesn't feel exactly like writing on paper, but it is much more comfortable than writing on the glossy screen. After i did some writing on the screen, the screen got sime marks that looked like scratches, but it seems to be some kind of dust that comes off the scree, i wiped it off and it disappeared. Now everything on the screen looks pixelated.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
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