Posted by earthworm on
URL: https://www.es-forum.com/Is-there-any-way-to-measure-electromagnetic-radiation-between-1khz-and-30mhz-tp4035594p4035604.html

no i can not recommend definitely any affordable meters.
emf-meters are all crap ( to different degrees ) , and the frequency-range between 100 kHz and 100/700 MHz has unfortunatedly been mostly ignored.
others on this forumhave played with several very cheap devices that may be of some use
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the RF Explorer WSUB1G+ would work with additional antennas that cover the frequency range you want to explore.
for instance :
20 kHz - 300 MHz : https://www.hamradio.co.uk/accessories-by-manufacturer-bonito-accessories/bonito/bonito-boni-whip-active-antenna-20khz-300mhz-pd-7134.php
but you'll need a patch cable from sma male male to bnc male for it.
correction previous post : the patch cable mentioned for the wonderland antenna won't fit to neither of these antennas.
those that are handy ans a bit technical could perhaps produce at home a ferrite bead coil type antenna for the range from 50 KHz to 2 MHz.
antennas should not deliver more than 16 volt dc to the RF-explorer.
the meter could be damaged when exposed to very strong fields ( like within one or two feet of a wifi-modem ), even when the meter is switched off.

the RF Explorer WSUB1G+ gives a spectrum analysis.
it produces emfs on its own, so not recommendable for everyone.
with "slow sweep" i actually meant something else : slow response.

the ME 3851A  from Gigahertz Solutions : 5Hz to 100 kHz ( actually a bit higher upto 500 kHz but than less sensitive ) rather reliable and solid, with ticking warning sound on it is less accurate.

the Esmog Spion :  1Hz - 80kHz + 80 kHz to 3 GHz
certainly some semblance of accuracy .
different sounds help to distinguish between different signals but this does not replace is a spectrum analysis of course.