Technical info
Relation between noise level and noise figure NF

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. That […]

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Technical info
Near field and far field

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. It […]

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