Formulas & Data:
- Electronics
- Mathematics
- Physics
- RF & Microwaves

Parts Vendors:
- all hand-selected

- Amateur Radio
- Vintage Articles:
- Electronics World
- Popular Electronics
- QST
- Radio & TV News
- Radio Craft
- Short Wave Craft
- Wireless World

- Events Calendar
RF Cafe Homepage
Copyright 1999-2015   •−•  ••−•    −•−•  •−  ••−•  •   "RF Cafe" in Morse Code  >> Listen to It <<
- EW & Radar Handbook
- Quizzes       - Software
- App Notes
- Calculators
- Advertise on RF Cafe
- About RF Cafe™
- RF Cafe Shirts & Mugs
- RF Cafe Archives
RF Cafe Book Contest
- RF Cafe on Visit RF Cafe on Facebook Visit RF Cafe on Twitter Visit RF Cafe on LinkedIn
- Tech Humor
- Forums Archive
- Job Board
- Donate to RF Cafe
- Kirt's Cogitations
Custom Search
More than 10,000 searchable pages indexed.
Greetings: There is so much good stuff on RF Cafe that there is no way to list or link to all of it here. Please use the Search box or the Site Map to find what you want - there is a good chance I have it here. Thanks!

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 StrengthMagnetic Field Strength
dBμV/m μV/m dBμA/m μA/m picogauss picoTesla
  01.0-51.5  0.00265  33.10.0033
  5  1.78-46.50.0047  58.80.0059
10   3.162  41.50.0084105.00.0105
15   5.623  36.50.0149186.20.0186
20 10.000  31.50.0265331.50.0331
    nanogauss  
2517.8-26.50.04720.5900.0590
30  31.62-21.50.08391.0480.1048
35  56.23-16.50.14921.8650.1865
37  70.79-14.50.18782.3470.2347
40100.00-11.50.26523.3150.3315
 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  3.16218.5  8.388104.810.485
8010.00028.526.525331.533.156
   mA/m μgauss nanoTesla
  90    31.638.5  0.0839    1.048  0.1048
100  100.048.5  0.2652    3.315  0.3315
110  316.258.5  0.838810.481.048
1201000.068.52.65233.153.315


Your RF Cafe
Progenitor & Webmaster

Click here to read about RF CafeKirt Blattenberger… single-handedly redefining what an engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem!
(Seize the Day!)

5th MOB: My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website