Electrical Field Strength Conversion Table

In the far field, Zo = 120π (377Ω)

Field Strength Calculation:

The field strength is calculated by adding the Antenna Factor and Cable Factor, and subtracting the Amplifier Gain from the measured reading. The basic equation is as follows:

FS = RA + AF + CF - AG

Where:

FS = Field Strength
RA = Receiver Amplitude
AF = Antenna Factor
CF = Cable Attenuation Factor
AG = Amplifier Gain

1 Gauss = 100 microTesla = 80 Amps/meter

Electrical Field Strength		Magnetic Field Strength
dBμV/m	μV/m	dBμA/m	μA/m	picogauss	picoTesla
0	1.0	-51.5	0.00265	33.1	0.0033
5	1.78	-46.5	0.0047	58.8	0.0059
10	3.162	41.5	0.0084	105.0	0.0105
15	5.623	36.5	0.0149	186.2	0.0186
20	10.000	31.5	0.0265	331.5	0.0331
				nanogauss
25	17.8	-26.5	0.0472	0.590	0.0590
30	31.62	-21.5	0.0839	1.048	0.1048
35	56.23	-16.5	0.1492	1.865	0.1865
37	70.79	-14.5	0.1878	2.347	0.2347
40	100.00	-11.5	0.2652	3.315	0.3315
	mV/m
50	0.316	-1.5	0.839	10.48	1.048
60	1.000	8.5	2.652	33.15	3.315
70	3.162	18.5	8.388	104.8	10.485
80	10.000	28.5	26.525	331.5	33.156
			mA/m	μgauss	nanoTesla
90	31.6	38.5	0.0839	1.048	0.1048
100	100.0	48.5	0.2652	3.315	0.3315
110	316.2	58.5	0.8388	10.48	1.048
120	1000.0	68.5	2.652	33.15	3.315