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500 mW 868 MHz XBee modules — Parallax Forums

500 mW 868 MHz XBee modules

Jay KickliterJay Kickliter Posts: 446
edited 2009-01-06 21:58 in General Discussion
I was about to buy a couple of these, but realized they are for use in Europe only.

The development kit with 2 modules is on sale for another month, just $99. It comes with a bunch of other parts.

http://www.digi.com/products/wireless/point-multipoint/xbee-pro-868.jsp

Comments

  • PhilldapillPhilldapill Posts: 1,283
    edited 2009-01-06 01:50
    ...Good Lord. Why do the Europeans get these and the US doesn't? Conspiracy at work... LOL

    But really, why Euro?
  • sylvie369sylvie369 Posts: 1,622
    edited 2009-01-06 13:40
    Those look great. It looks like the same pin arrangement as the XBee modules we're using here, and a feature set that's similar enough that experience with a regular XBee should transfer pretty well to setting one of those up.

    I've attached a chart that's a bit dated (October 2003), but shows the U.S. frequency allocations, and should help to explain why some of these devices are not available here. There are of course other rules, most notably capping legal power levels, and any moderately experienced Ham knows WAY more than I do about that, but I find this chart often clears up what's going on with RF devices.

    Post Edited (sylvie369) : 1/6/2009 6:56:35 PM GMT
    pdf
    pdf
    allochrt.pdf
    94K
  • Jay KickliterJay Kickliter Posts: 446
    edited 2009-01-06 13:59
    From what I've been able to find, it looks like tat band was allocated to Sprint/Nextel.

    Too bad, The XBee Pro 900 at 50 mW is hard to find, and the XBee Pro XSC at 100 mW has too much latency for my needs, ~75 mS. I can't use 2.4 since this is for a plane that will use 2.4 ghz video.
  • PhilldapillPhilldapill Posts: 1,283
    edited 2009-01-06 20:03
    I gotta say, Jay, you've got some pretty cool projects going... what's this one for if you don't mind me asking?
  • Jay KickliterJay Kickliter Posts: 446
    edited 2009-01-06 21:58
    I really only have 2 going. And they build on each other. I have to finish the balloon project, then I'm going to do some sort of flying apparatus (either UAV or just gyro stabilized long-distance flight). Right now I'm just messing with the electronics to see if these links can completely replace traditional RC Controllers. That thing I've been doing with the Nunchuck and the Sparkfun IMU are for the plane. I've never flow an RC plane, and don't have much interest in traditional RC technology. I'm not blind though, I'm sure I'll crash several times.
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