Sentences with phrase «indoor signal levels»

Not exact matches

The spatial range corresponding to a good signal - to - noise ratio was tens of meters in the indoor noise environment of the NIST tests, but could be extended to hundreds of meters if the noise were reduced to the sensitivity levels of the sensor.

Night vision which use a special type glass which transparent to longwave IR can «see» thermal heat and the CO2 in atmosphere is mostly transparent [high level of CO2 from a fire doesn't significantly block the signal - nor higher concentration of CO2 in urban areas or +1000 ppm CO2 of normal indoor air.]

Quickly measure signal strength, map indoor frequency levels and identify peak antenna alignment for cell phone signal boosters.