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How can I increase the transmission power?
#1
Three locations for my smarthomatic sensors seem to be out of range (thick walls in basement). Around the corner the packages are recieved well, but in the door I get garbage, behind the door I receive nothing...

Is there a way to increase the transmitting power of the RFM12B ?

CU
Jürgen
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#2
The standard antenna is 1/4 wavelength if I remember correctly. You could try an antenna with the 2x or 4x the length, for base station and/or your device.
The transmitting power can't be increased AFAIK.
You should also try to turn the antenna (both) 90°.

A repeater was once planned, but I still have very little time for the project, and can't develop it right now.
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