Discussions

3dr Telemetry or xbee, or?

Posted by Matt Gunn on February 26, 2013 at 8:58am

Please excuse my noob question...

Im building my first APM controlled mapping aircraft and I have some questions on the link.

 

With regards to link quality and distance in the 900mhz band, does the xbee pro 900hp seem to be the best choice? Or should I stick with the 3dr telemetry?

I also saw that there is a long range diversity modem by rfdesign. Is that worth a look as well?

 

Thanks,

Matt

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Replies

  • criro1999 February 27, 2013 at 12:12pm

    I am using XRF from Ciseco, really cheep and works fine for me, APM compatible.

    It can be tuned on 6 different frequencies, same modules, you just need to adapt the antenna.

    And has encryption feature!

  • Matt Gunn February 26, 2013 at 9:06pm

    Thanks guys, I actually ended up going with the 433mHz 3DR set. I will be using a 1/2 wave vertical dipole on the air side, and a 1/2 wave whip on the ground. That should give me the range Im after :) 

  • Developer
    Bill Bonney February 26, 2013 at 7:01pm
    Here's a XBee buying guide see https://www.sparkfun.com/pages/xbee_guide

    The 3DR are a low cost alternative but don't have the same feature set, encryption being one. Performance wise there is probably little in it.

    Also there is the synapse modules see https://solarbotics.com/catalog/wireless/synapse/
    XBee Buying Guide - SparkFun Electronics
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