Some days ago I setup a simle RTL-SDR based monitoring station. Now after about 5 days of more or less constant monitoring I found one interesting thing:

 

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One of my neighbours has a TOYOTA car. Its TPM sensors seem to transmit permanently. As you can see here, more or less regularily:

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So I assume this car must have a pretty large battery, where this constant power consumption did not harm?!

The number of other detected TMP sensor is small, compared to the traffic on my road.

 

2014 CW (Morse Telegraphy) was added to the German Nationwide Inventory of Intangible Cultural Heritage.

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