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I used XBee in a plane farm and it worked only with 2 km of distance. There's something wrong. What can I do?

0 votes
I have a Xbee Pro S3B, I used a 5 dBi 900 MHz omni antenna.
I need a larger distance.
asked Oct 18, 2013 in RF Solutions and XBee by micaelbg New to the Community (0 points)

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1 Answer

0 votes
How is your line-of-sight? Any obsticles. You can try raising them up higher too. Keep in mind that the fresnel zone isn't as tight as a pencil:
http://en.wikipedia.org/wiki/Fresnel_zone

You can also try unidirectional antennas for better range.
answered Oct 30, 2013 by kjensen8 Veteran of the Digi Community (653 points)
My line-of-sight don't have obstacles.
What do you mean with "isn't as tight as a pencil"?
commented Oct 31, 2013 by micaelbg New to the Community (0 points)
The fresnel can be quite wide.  it's usually not as narrow as a beam (pencil).

Also make sure you've got the radio settings to their highest level:
PL=4
PM=1

You can also try doing a range test and see if you get any data at all.
commented Dec 16, 2013 by kjensen8 Veteran of the Digi Community (653 points)
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