Re: [Paparazzi-devel] 868 xbee modems

[Michele Santucci]

There's also a XBee product working @ 900MHz with power levels similar to those of 2.4 GHz version (PRO also).

Outside Paparazzi project I've been using a 2. 4GHz XBee PRO based telemetry system togheter with 2.4GHz Futaba

6-7channel R/C  control link without interference problems (to control and monitor an helicopter uav).

 

For the video transmission we use commercial low cost transmitters in 1.1 - 1.5GHz frequencies range (of course)

with good results the only issue is to find a proper antenna solution (compact one for the airborne section).

 

Up-to now we're going to evaluate a MicroHard modem solution (pretty similar to the one used on Micropilot UAV)

that should fullfill (right on papers now) every needs but of course it's not a low-cost one.

From: Jesus Martin Sanchez

Sent: Saturday, November 07, 2009 6:13 PM

To: address@hidden

Subject: [Paparazzi-devel] 868 xbee modems

Hello:
  I´ve read this post: http://lists.gnu.org/archive/html/paparazzi-devel/2009-05/msg00088.html
  And that the diydrones post about the 868mhz modems too. I understand that there are lost of porblems with the uplink of the 868mhz xbee modem bevause the 10% duty cycle, isn´t it? Anybody solve it? 
  I´ve read that solution: http://lists.gnu.org/archive/html/paparazzi-devel/2009-05/msg00087.html    How it works?
 Because I want to use a 2,4ghz rc system, and I think that the better way is to use a 868mhz modems, and a 1,2ghz of video.
   Thanks for all.
   Jesús

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