SKU: 23846593310

RFD900X UAV Data Transmission Radio Long-Range Module Support PPM / SBUS remote control signal forwarding

Sale price$191.25 Regular price$212.50
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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

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Description

RFD900X UAV Data Transmission Radio Long-Range Module Support PPM / SBUS remote control signal forwardingDescription This is the ideal solution for long range telemetry or communications. Two RFD900x modems with antennas for all antenna ports. The kit consists of: 2 x RFD 900x Radio Modems 1 x Antenna, 900MHz Quarter wave monopole 2. 1dBi 1 x Antenna, 900MHz Right Angle Quarter wave monopole 2. 1dBi 4 x Antennas, 900MHz Half wave dipole 3dBi 1 x FTDI USB cable RFD900x New Features: New Processor, ARM 32 bit core. Air data rate: 500kbit s. AES Hardware

Description

This is the ideal solution for long range telemetry or communications.  Two RFD900x modems with antennas for all antenna ports.

The kit consists of:

  • 2 x RFD-900x Radio Modems
  • 1 x Antenna, 900MHz Quarter wave monopole 2.1dBi
  • 1 x Antenna, 900MHz Right Angle Quarter wave monopole 2.1dBi
  • 4 x Antennas, 900MHz Half wave dipole 3dBi
  • 1 x FTDI USB cable

RFD900x New Features:

  • New Processor, ARM 32 bit core.
  • Air data rate: 500kbit/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, multipoint firmware implemented.
  • Asynchronous multipoint firmware, Beta release

Features:

  • Long range >40km depending on antennas and GCS setup *80km demonstrated by Edge Research labs on a balloon !, 57km in India, on Dipoles.
  • 2 x RP-SMA RF connectors, diversity switched.
  • 1 Watt (+30dBm) transmit power.
  • Transmit low pass filter.
  • > 20dB Low noise amplifier, high IP3.
  • RX SAW filter.
  • All I/O ESD protected and filtered.
  • Re implemented SiK and Multipoint SiK firmware, field upgradeable, easy to configure.
  • Small, light weight.
  • Compatible with 3DR / Hope-RF radio modules.
  • License free use in Australia, Canada, USA, NZ

Note: Not compatible with older modems

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, ADC, PWM capable).

Specifications:

  • Frequency Range:  902 – 928 MHz (USA) / 915 – 928 MHz (Australia)
  • 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 and 250, 500 kbit/sec ( User selectable, 64k default )
  • UART data transfer rates: 9600, 19200, 38400, 57600, 115200, 400k, 921k baud  ( User selectable, 57600 default )
  • Output Power: 1W (+30dBm)
  • Receive Sensitivity: >121 dBm at low data rates, high data rates (TBA)
  • 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 RFD900 radios is supported by APM Planner.

The default settings are at 57600 baud, N, 8, 1, and 64k air data rate.

The RFD900x manual is here: RFD900x Manual

The RFD900x SiK software manual is here : RFD900x Peer-to-peer Manual

Software features include:

Frequency hopping spread spectrum (FHSS)
Transparent serial link
Point to Point, or Multipoint networking
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 :

The RFD900 is designed to be compliant with the following standards:

  • FCC Part 15.247 (Frequency hopping and digitally modulated intentional radiators)
  • AS/NZS 4268:2012 (Radio equipment and systems – short range devices)

The modem is designed for system integrators who will integrate the modem into their own projects and product prototypes.  The user is responsible for compliance with local regulations for radio transmitters.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 23846593310

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yosvel espinosa
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 As a man who appreciates comfort and style, I can confidently say these August Alley mock neck t-shirts are a solid choice. I'm always looking for versatile basics, and these fit the bill perfectly. The cotton material feels great against the skin, and they've held their shape well after a few washes. I appreciate the slim fit; it looks modern without being too tight. Whether I'm wearing them casually or layering them under a jacket, they always look sharp. For the price, getting a 3-pack of these quality shirts is a fantastic deal. Highly recommend them for any guy looking to upgrade his basic tee collection.
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Reviewed in the United States on June 24, 2025
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Dave Roberts
Bozeman, US
★★★★★ 5
Well worth the price.
Great fit and quality feel.
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Reviewed in the United States on November 3, 2025
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Simple Programmer
Lowell, US
★★★★★ 5
One of the Best Watch for the Price
Color: Black/Gray
Second time purchase of this model. The strap on the first one broke after 5 years and the original battery is still in it. Just found out that you can purchase replacement swap from Timex direct or through retail stores like Walmart and Target. The replacement straps are about $12. I mentioned this because as other reviewer of this watch or similar mode, the major con is the strap seems to break after several years. The other con of this watch is that the “start/split” button which is used to change time zone is on the face of the watch of the watch. It is slightly raised, so it is easy to accidently change time zone when sleeping. This watch looks good, very rugged, have taken it out many times snorkeling and shows no indication of water leakage. The oversize display is easy to read. The indigo light makes the watch easy to read at night and the night feature when turn on, will auto-light the display when any button is pressed. I travel a lot and really like the three time zones. Another hidden feature not mentioned by others is the custom menu feature. You can selectively pick the features you want to use and reduce the number of features you have to cycle through. This is an excellent everyday watch, very rugged, and accurate. On the previous one, I didn’t have to reset the time at all during the 5 years of use. The number for Timex Support is: If you can't find your strap, you can also order one by calling our Customer Service Department at 1-888-727-2931. I also had the traditional size display before discovering the oversize mode. The oversize is a lot easier to read.
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Reviewed in the United States on February 13, 2014
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CJ
Cuba, US
★★★★★ 5
Works great, rugged, and worth the money!
Color: Black/Gray
Just purchased my second of this watch as a replacement. The first lasted about four years of abuse before the straps started to crumble. No battery or other issues. It had survived Afghanistan, numerous field exercises, mud, sweat, rain, wind, etc. and was well worth the $35 I spent on it. It is easy to adjust the time and has a handy 2nd time feature if you're between two time zones frequently or jut want to know the time back home. Everything else is what one would expect from the Ironman series. Lightweight, good backlight (indiglo), not obnoxiously large, rugged, good chrono/timers/alarms.
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Reviewed in the United States on August 26, 2014
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DCJ
Louisville, US
★★★★★ 4
Good Watch
Color: Black/Gray
I have an old 30 lap Ironman. This one is larger than my previous one and has more features. It took me a little while to fully figure out how the new "occasion" feature works, but I can honestly say that I will probably never use that feature. This is a good watch, but the old one is easier to read at an angle. I did not measure the angle that the other segments become visible enough to interfere with viewing the time, but I do know that it is less than my old one. I have to twist my wrist a little more to view the time than I did with the old one. My old one is over 10 years old and still keeps excellent time. I replaced the strap and battery a couple times. The plastic part on top of it broke off when I dropped it at the airport about a year ago. Eventually the whole top fell off. I glued a plastic piece on to replace the "start/split" button. The wife decided that my repair was too ugly to wear in public. I still wear the old one around the house just to bother her! Hopefully this new one will last as long. I may have to get a Velcro strap for this one. The plastic one looks better, but the Velcro type is more comfortable.
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Reviewed in the United States on September 22, 2014

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