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 3. GQ EMF EF Meter RF Spectrum Power Analyzer
 Calibration of EF, Comparison with Trifield TF2		  New Topic  Reply to Topic
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dj2327

3 Posts
Posted - 10/07/2020 :  09:44:32  Show Profile  Reply with Quote
Hi there,

I experimented with measuring EF (electric-fields), and found that the Trifield TF2 was measuring EF 1.6x higher than the GQ EMF-390 meter.

I was measuring around 70 to 75 V/m about 2 to 3 inches away from my laptop with the GQ EMF-390, whereas with the TF2 it was reading 112 to 120 V/m.

The two readings were taken one after the other, in the same physical location (2 to 3 inches from the laptop). I made sure I was not touching the devices when I recorded the readings.

Therefore, the devices appear to be calibrated differently.

In which case, how can I find out which is more accurate / correctly calibrated? Based on these readings what do you think is likely?

I know I can recalibrate the EMF-390 in the options from 100% to 160%, but I do not know which is the correct calibration (e.g., the EMF-390 could be correct and the TF2 may be off by 1.6x).


Thank you
Reply #1

EmfDev

2250 Posts
Posted - 10/07/2020 :  10:23:44  Show Profile  Reply with Quote
Hi dj2327, maybe the TF2 you got has slightly higher EF reading than others.
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