How is field strength specified?
 

Quick question... when someone tells you that their receiver provides 12dB
SINAD (or whatever) with an incident field strength of, say, 20uV/m, is 20uV/m
an RMS value or magnitude? Or isn't this standardized enough that one should
assume?

From some Googling RMS appears to be the standard, but I wanted to ask some
folks who really know...

(Back in school, in EM classes it was always magnitudes...)

Thanks,
---Joel

How is field strength specified?
 

"Joel Koltner" wrote in
:

Quick question... when someone tells you that their receiver provides
12dB SINAD (or whatever) with an incident field strength of, say,
20uV/m, is 20uV/m an RMS value or magnitude? Or isn't this
standardized enough that one should assume?

From some Googling RMS appears to be the standard, but I wanted to ask
some folks who really know...

(Back in school, in EM classes it was always magnitudes...)

Thanks,
---Joel




The answer is revealed by finding Power Flux Density in terms of Electric
Field Strength and Magnetic Field Strength.

Owen

How is field strength specified?
 

Joel Koltner wrote:
Quick question... when someone tells you that their receiver provides 12dB
SINAD (or whatever) with an incident field strength of, say, 20uV/m, is 20uV/m
an RMS value or magnitude? Or isn't this standardized enough that one should
assume?

RMS.. The conversion from E field to power density will assume 377 ohms


From some Googling RMS appears to be the standard, but I wanted to ask some
folks who really know...

(Back in school, in EM classes it was always magnitudes...)

Thanks,
---Joel

How is field strength specified?
 

"Jim Lux" wrote in message
...
RMS.. The conversion from E field to power density will assume 377 ohms

Thanks Jim!

---Joel