Re: "Electric field strength" measurements?

开云体育

Brooke,
Thank you for your comment. I agree using a SA is probably the best way to measure EMF's. Been there done that. Looking for a less costly (think cheap), way to do it.

But it seems that with some of the new chips today. a reasonable arbitrary log characterization could be established (in dbm or dbV) with a reference dipole and then switch the feed to the antenna with supposed gain (or loss) and use a calibrated attenuator to match the level of the reference antenna, then read the delta between them on the attenuator as gain or loss.

I suspect this has already been done by those that are much smarter than I. Just trying to find out if it's so...
Ray, W4BYG

On 8/10/2022 17:24, Brooke Clarke via groups.io wrote:

Hi Ray:

I looked into Measuring EMFs and the best result was based on using a spectrum analyzer that has calibrated amplitudes based on a 50 Ohm input.

-- 
"If you want to build a strong house, I'll give you my engineer's number. 
If you want to build a strong life, I'll introduce you to my carpenter."
  Lebron and Heather Lackey

Virus-free.

View All 28 Messages

#107

Join [email protected] to automatically receive all group messages.