Uwe, I would be very interested in a plot
of how the conductivity has varied over the year and in what the largest variation
of maximum to minimum that you have found?
It would also be useful to measure at a
frequency closer to 136Khz for comparison purposes? It would have to be at a
frequency away from interference and the test signal would have to be strong
enough to overcome interference.
Has anyone on the list experience in
measuring ground conductivity at such frequencies?
Mike – G3LHZ
I´am mesuring ground conductivity over almost 1 year
regularly
today it was 15,6 Ohm / m ( measured with 16Volt@ 50Hz )
I try to built a measuring device with other frequency ,
somthing odd ( no multibles from 50Hz, thinking about 111 Hz - )
and automatic daily measurements ( at present times done
manually)
Would like to discuss about it