Ubiquiti XR9 XtremeRange 900MHz Embedded Radio module



I came across this while researching wireless solutions and seems very possible to create a long range WiFi connection between the GCS and aircraft using an onboard micro computer.

These are the specs that the company boasts:


Processor Specs: Atheros, 6th Generation, AR5414

Radio Operation:  Proprietary 900MHz

Interface:  32-bit mini-PCI Type IIIA

Operation Voltage:  3.3VDC

Antenna Ports:  Dual MMCX

Temperature Range:  -45C to +90C (extended temp version up to +95C)

Security:  802.11i, AES-CCM & TKIP Encryption, 802.1x, 64/128/152bit WEP

Data Rates:  6Mbps, 9Mbps, 12Mbps, 24Mbps, 36Mbps, 48Mbps, 54Mbps

TX Channel Width Support:  5MHz / 10MHz / 20MHz / 40MHz

RoHS Compliance:  YES

Avg. TX Power:  28dBm, +/-1dB

Max Current Consumption:  1.10A, +/-100mA

Indoor Range (Antenna Dependent):  over 400m

Outdoor Range (Antenna Dependent):  over 50km

Operating System Support:  Linux MADWIFI, WindowsXP, Windows2000

Advanced Mobility / Quick Handoff:  WindowsXP/2000 Utility with Enhanced Mobility Driver from Ubiquiti

Cisco Support:  CCX 4.0 Supported Driver/Utility also available from Ubiquiti


They also carry ones for the 5GHz and 700MHz frequency range.  If anyone has ever used these or could see a possible usage in a UAV, please comment!



Views: 4892

Comment by Jesse on January 4, 2013 at 9:52pm

50km = 31miles... that's pretty nice!

Comment by Hunter Parris on January 4, 2013 at 9:59pm

That's very nice for a WiFi connection!  I was thinking this could possibly be a great way to implement image processing and data transmissions.

Comment by Hunter Parris on January 4, 2013 at 10:00pm

However, most of the newer mini PCs have miniPCI-E and not miniPCI slots.

Comment by Hunter Parris on January 4, 2013 at 10:08pm

I'd imagine you can acheive this by using this: http://www.amfeltec.com/products/flexible-minipcie-to-minipci-adapt...

Comment by Pbreed on January 4, 2013 at 10:25pm

I've personally run a Maxstream xtend radio at 73 miles with a rubber duck on one end a 1m dish on the other with 100% copy at 115K baud. So if you don't need images, thats pretty good.

Comment by Hunter Parris on January 4, 2013 at 10:29pm
Wow, Impressive!
Comment by kolin on January 5, 2013 at 2:33am

Sorry to tell that, it is useless for small drones. You need mainboard to plug this card to. Cheapest and lightest I can find is Mikrotik RB411, form factor 105x105mm about 100g. Then you can change firmware to OpenWRT. Pretty complicated....

Comment by Overwatch on January 5, 2013 at 3:03am

I've experimented with XR5 (pretty much the same deal as XR9, except at 5 GHz so it can be used in Europe) and Wiligear's WBD-111 micro routerboard. AFAIK still the smallest and lightest board on the market at 9x8x2 cm³ and 70 grams including the XR5 module, peace of cake for nearly any size fixed wing UAV.

Comment by Tobias Krieger on January 5, 2013 at 3:52am

I used a UBNT picostation/nanostation (without casing) configuration for a rover a while ago. The picostation was connected to a micro ITX (100x100mm). Worked okay, but video latency was a slow down on that project. But even with 1000mW I wasn't able to tx/rx nicely over more then a distance as 1000m in the city. As far as I remember they had (back then) still a minor bug in the multicast/udp settings. I guess the bug is solved, but I haven't looked into it lately

Comment by Dean Franks on January 5, 2013 at 9:55am

You might want to get a Rocket RM900 instead and remove the board from the case for a UAV.  It is a little big, but transmits at 28dbm with two mimo transmit channels and there is a serial connector (ttl level) on the board.  The firmware SDK/source is available for download on request, so you could add one of the standard serial over IP protocols and use another rocket or a NanoStation (28dbm + 8dbi antenna gain, 60 degree/60 degree directional pattern) for a base station.  As an added bonus, you would get ethernet on both ends for a small IP camera/etc.  All these products will support 100mbps at long range or slower speeds at very long range. 


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