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Smart meter antenna

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56FIN93

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Joined
Aug 3, 2014
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11
Location
Porvoo KP20TJ, Finland
I have this neat little hot-dip galvanized smart meter antenna and i don't have a clue what kinda antenna it is. J-pole, tapped inverted F antenna or what? I have tested it in 446 MHz PMR446 band and it is perfectly resonating. SWR is <1:1.5 in whole 400 MHz band. It is probably also tuned for common cellular bands, because smart meter data is transmitted via cellular bands in Finland.
Is there a way to calculate correct frequencies?
I added BNC connector to it and in future i'm going to change it to BNC flange connector.

Measurements :

https://dl.dropboxusercontent.com/u/40816182/Radiohullut/Sahkoantenni/antenni2.JPG
 

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rescue161

KE4FHH
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Hubert, NC
You can sweep the antenna with a service monitor or with a spectrum analyzer with a tracking generator or you could use an antenna analyzer.
 
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