27-03-2016, 22:57
My work has just started selling 433MHz antennas, I was shocked at the size however. In the photo attached you can see the size difference. The top antenna is 100mm long, and is what I am currently using however what my business is selling is only 40mm in length with an apparent 13dbm of gain. I can not seem to find the gain information for my origonal larger antenna, but it was sold as a 433MHz.
[attachment=608]
It suppresses me how different sizes can be used for the same frequency, but I guess results on distance will vary.
I will give this little guy a go and see what happens with my weather station, if it works, it would be a nice little addition and fit well inside my housing. My only concirn is maybe the size is too small for the power the transmitter module is putting out and could burn something out.
[attachment=608]
It suppresses me how different sizes can be used for the same frequency, but I guess results on distance will vary.
I will give this little guy a go and see what happens with my weather station, if it works, it would be a nice little addition and fit well inside my housing. My only concirn is maybe the size is too small for the power the transmitter module is putting out and could burn something out.