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Description
RF Design RFD 868x Long Range Telemetry Modem BundleRFD868x Long Range Telemetry Modem Kit (UK) Weve spent 10 years supplying commercial UAV radio systems to the UK, so we know your headaches. You need a reliable drone communication link that doesn't quit when your client demands a mission in freezing rain. The RFD868x is a professional grade long range telemetry modem built to keep your Ground Control Station (GCS) locked in. Powered by an ARM 32 bit core and open source SiK firmware, it delivers a
RFD868x Long-Range Telemetry Modem Kit (UK)
We’ve spent 10 years supplying commercial UAV radio systems to the UK, so we know your headaches. You need a reliable drone communication link that doesn't quit when your client demands a mission in freezing rain. The RFD868x is a professional-grade long-range telemetry modem built to keep your Ground Control Station (GCS) locked in. Powered by an ARM 32-bit core and open-source SiK firmware, it delivers a massive 500kbit/s air data rate. Say goodbye to mid-flight panic and hello to rock-solid Mavlink protocol framing and FHSS (Frequency Hopping Spread Spectrum) reliability. With simultaneous RC PPM pass-through, this telemetry kit actually gets your data home, keeping CAA paperwork off your desk.
Key Highlights
- Unapologetic Range: >40km depending on antennas and GCS setup (80km demonstrated on a weather balloon), supported by real-time automatic antenna diversity switching.
- Heavy-Duty Processing: ARM 32-bit core pushing 500kbit/s air data rates with fully working AES hardware-accelerated encryption.
- Bulletproof Design: Every single I/O port is fully ESD protected and filtered, backed by automatic duty cycle throttling to prevent overheating.
Why You Want This Long-Range Telemetry Modem
Because dealing with signal loss mid-survey is bad for your blood pressure and worse for your margins. The RFD868x isn't just about raw power—though it has a full 1 Watt (+30dBm) of it. It’s engineered with a transmit low-pass filter, a >20dB low-noise amplifier (high IP3), and an RX SAW filter to punch through the noise floor. Add in Mavlink radio status reporting (Local/Remote RSSI and Noise) and beta support for asynchronous multipoint firmware, and you have a radio link that outsmarts the environment. Tested to survive operational temperatures from -73°C to +123°C, this modem will outlive your airframe, your client's patience, and probably you.
Specifications
- Weight: 14.5g
- Dimensions: 30 mm (wide) x 57 mm (long) x 12.8 mm (thick) - Including RF Shield, Heatsink, and connectors
- Frequency Range: 868-869 MHz
- Output Power: 1W (+30dBm), controllable in 1dB steps (+/- 1dB @=20dBm typical)
- Air Data Transfer Rates: 4, 8, 16, 19, 24, 32, 48, 64, 96, 128, 192, 250, and 500 kbit/sec (User selectable, 64k default)
- UART Data Transfer Rates: 9600, 19200, 38400, 57600, 115200, 400k, 921k baud (User selectable, 57600 default at N, 8, 1)
- Receive Sensitivity: >121 dBm at low data rates
- Power Supply: +5 V nominal (+3.5 V min, +5.5 V max), ~800 mA peak at maximum power
- Interfaces: 2 x RP-SMA RF connectors (diversity switched), Logic level TTL (+3.3v) Serial, 6x GPIO (Digital, ADC, PWM capable)
- RF Architecture: Transmit low-pass filter, >20dB Low noise amplifier, RX SAW filter
- Mounting: 3 x M2.5 screws, 3 x header pin solder points
- Temperature Range: -40 to +85 deg C (Tested operational from -73 to +123 deg C)
- Compatibility: 3DR / Hope-RF radio modules, integrated APM Planner support
FAQ
Can I use the RFD868x for both RC control and telemetry at the same time?
Yes. The RFD868x natively supports RC PPM pass-through concurrently with your telemetry data. It's designed specifically to streamline your payload wiring and reduce the number of potential failure points on your commercial rig.
What’s in the Box*
- 2× RFD868x Radio Modems
- 1× 868-900MHz Quarter wave monopole antenna (2.1dBi)
- 1× 868-900MHz Right Angle Quarter wave monopole antenna (2.1dBi)
- 4× 868-900MHz Half wave dipole antennas (3dBi)
- 1× FTDI USB cable
Disclaimer
Designed for compliance with FCC Part 15.247 and AS/NZS 4268:2012, but you are strictly responsible for ensuring compliance with your local UK/European radio transmission laws. We supply the high-end hardware; we do not pay your fines if you decide to illegally blast 1W of transmit power in a restricted zone. Check your local regulations.
Still Here?
The research balloon guys hit 80km with this exact setup. You're just trying to map a quarry without dropping packets. Put it in the cart and go get the job done.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.9 ★★★★★
Based on 1678 reviews
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Product Reviews
★★★★★ 5
A bewitching retelling of Arthurian legend!
Format: Kindle
In a land where the Fae have nearly become only a legend and those who still posses even a morsel of the blood are few and far between, Morgan finds herself cast aside by most of society due to her rumored half-Fae lineage, including her brother, King Arthur. With the kingdom at the brink of war, Arthur entrusts her with a quest to retrieve a Fae weapon of legendary power: the sword of Perun, Excalibur. Accompanied by men she loathes, Captain Kairos Draven and Ragnar Whitehorn, she embarks on her long and unbeknownst perilous journey, only to find that things she once believed to be myth are in fact very real. With devastating twists, omitted truths, witty banter and fierce action, Queen of Roses leaves you begging to know more about the secrets of Aercanum!
Wow, wow, wow! Going into this story, I did not realize that it was going to be a retelling of Arthurian legend, especially not one with a fantastical twist! The unique spin almost gave me The Witcher vibes and I think adding Fae into the mix was quite interesting. I knew the basics of the legend but after reading this book, it has piqued my interest and makes me want to learn more about it. My attention was snatched as soon as I finished the prologue and I knew that I was going to devour this story. I truly enjoyed the gender swaps and even how Arthur was portrayed as villainous. Morgan’s past and even her parts of her present is absolutely heartbreaking, and I felt for her at times. I can only recall one other book that made me hate characters the way I despised Florian and Arthur, leaving me with my blood boiling and feeling disgusted. Even after finishing the book, Draven is still a mystery to me and I cannot figure out how to feel about him. I guess they just means that the author did an excellent job at conveying each character’s persona! The rich world building and imagery made it easy for me to visualize the places that the group visited along their journey. I am truly engulfed in this story and I cannot wait to see wait fate awaits Morgan and how the Fae will be even more incorporated in the next book!.
I received a free copy of this book and am voluntarily leaving a review.
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Reviewed in the United States on August 11, 2023
★★★★★ 4
Enchanting
Format: Kindle
"Queen of Roses" by Briar Boleyn is a delightful and refreshing reimagining of the classic tale of King Arthur, with a captivating twist that places the spotlight on Morgan, a character who has often been overshadowed in traditional retellings. Boleyn's creative decision to shift the narrative perspective to Morgan breathes new life into the story, offering readers an intriguing and compelling look at the Arthurian world from an entirely different angle.
One of the most commendable aspects of this book is its incorporation of Fae elements, which adds an enchanting layer of magic and mystery to the already familiar Arthurian setting. Boleyn skillfully weaves the world of the Fae into the narrative, creating a captivating backdrop against which the events of the story unfold. This addition not only adds depth to the world-building but also provides ample opportunities for twists and turns that keep readers thoroughly engrossed.
However, while the book boasts numerous strengths, it does have one noticeable flaw: the characterization of Morgan. While it is reasonable to create a flawed and complex protagonist, it appears that at times, Morgan's character becomes overly difficult and hard to relate to. Her persistently negative perception of one of the main male characters, who is a potential love interest, despite his efforts to support and assist her, may come across as somewhat irrational and could test the patience of some readers. Striking a balance between a strong, independent character and one who can recognize genuine support and affection could have enhanced the overall reader experience.
Nonetheless, the allure of "Queen of Roses" lies in its innovative approach to the Arthurian legend and its skillful blending of fantasy elements into a familiar narrative. Boleyn's evocative prose draws readers into a world where magic, destiny, and fate entwine, leaving us eager to uncover the mysteries that unfold within the pages.
I received a free copy of this book via Booksprout and am voluntarily leaving a review.
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Reviewed in the United States on July 28, 2023
★★★★★ 5
An action-packed dark romantasy
Format: Kindle
I loved this book! Queen of Roses is an Arthurian-inspired dark romantasy that is the first book in the Blood of Fae series. The story follows Morgan, the princess of Camelot who is rumored to be part fae. Fueled by prejudiced hatred and a mistrust of fae blood, Morgan’s abusive father strips her of her birthright and hands it to her half-brother, Arthur. Instead of becoming queen, Morgan is commanded to join the temple of the goddesses when she comes of age.
However, Arthur turns into a psychopathic, power-hungry, fae-hating king as he ages. He develops malevolent plans and commands Morgan to find an ancient weapon with legendary power. Although Morgan is wary of Arthur’s intentions, she embraces the opportunity to go on a journey and potentially change her fate.
The story picks up from there and we follow Morgan on her quest to find the ancient relic. It’s full of high stakes adventure, mystery, tension, banter, forced proximity, hidden magic, self discovery, and betrayal. This first installment of the series intricately develops the world building and character development. There’s little romance in this book, but it is evident that it is a slow burn that will continue to develop throughout the remainder of the series.
Overall, I loved the world building, the epic fantasy, Morgan’s journey of self discovery, and all of the twists and turns that set the stage for the future installments. I can’t wait to see what happens next!
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Reviewed in the United States on April 7, 2024
★★★★★ 4
Arthurian Fae Quest…say less.
Format: Kindle
A fae centered Arthurian tale unlike any I’ve read so far. The author did a great job at descriptive world building, with scenes easily playing out in my minds eye. There was plenty of action, suspense, and even a touch of horror. An enemies to lovers, slow burn romance, a quest, with plot twist and turns aplenty. There was a love triangle, which I’m not usually a fan of but, it played out well in this story line. The FMC, Morgan Pendragon, was so blatantly naïve, yet I typically expect as much in a ‘book one’ of a series, especially one that features a fairly sheltered princess. I was happy to read that in spite of this, she still showed a strong sense of morals, fire, and spine. Now our MMC? Kairos Draven, aka Void’s Edge. Oh, how I’m a sucker for a smoking’ hot grumpy warrior alpha with a witty mouth, and a strong sense of “touch her and die” attitude, so you know who held all my cards. That ending? Just made me swoon all the harder. Now add a battlecat that rivals the size of a horse…and well Ms. Briar Boleyn you have well and truly stolen my heart. I’m excited to see where the story goes from here, and follow along to see more of the characters growth. I went into this story fairly blind, and I think I enjoyed it all the more because of it.
Once the story got going, it had me in an absolute chokehold and it was difficult to put down.
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Reviewed in the United States on May 12, 2024
★★★★★ 3
Not a bad start
Format: Kindle
3 stars
Thank you Netgalley and Briar Boleyn for the ARC!
A camelot/king Arthur retelling with fae. I was hooked by the idea of this book immediately and was eager to jump into this world.
• slow burn
• enemies to lovers
• who did this to you
Morgan Pendragon watched her mother die by her father's hand when she was just eight years old, hiding under the bed. Morgan is believed to have the tainted blood of the fae in her veins and is cast aside so that her fathers illegitimate son, Arthur, can become the king. She's seen his cruel treatment of the fae firsthand, so when he sends her on a journey to find a fae weapon she seizes the opportunity to do more with her life. Along the way, she finds more than she could have imagined.
I don't know a whole lot about King Arthur and Camelot but I had a lot of fun with this story! The plot has some similar tropes to popular romantasy books (From blood and ash) but there's enough originality here that it doesn't feel like I'm reading a copy. I liked how the fae were different in appearance than what is typical in most fantasy books I've read. In this book they have blue hair, violet skin and a wide range of other characteristics. I thought that the world building was easy to follow and I could easily immerse myself into this world. After reading the blurb I kept wondering when she was going to go on the journey to find Excalibur and it doesn't happen until around the 45% mark.
The story is a bit slow at times but starts to pick up once they begin their journey to find Excalibur. The John Wick style Inn was a fun concept that I enjoyed reading about.
There are a lot of similarities to this and FBAA and I would have liked to have it be a little more different, but I'm hoping book two will have the story turn into something of its own. Overall I enjoyed reading this story and I'm looking forward to reading book two especially after that ending.
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Reviewed in the United States on May 27, 2023