Relation between noise level and noise figure NF
06/06/2013
[mathjax] For example, the input signal is amplified 20dB whe n it passes an amplifier of 20dB gain. This is understandable. How about a noise ? This cannot be understood well. […]
Near field and far field
23/08/2006
[mathjax] When the electric field strength and the magnetic field strength are measured, how much the distance between the transmission and the receiving antennas should be always becomes a problem. […]