EDN

Test Ideas: Measure DSL power spectral density

A DSL (digital subscriber loop) transmitter's PSD (power-spectral density) is its signature in a network. Industry standards specify the allowed power in dBm/Hz in different parts of the ...
EDN

Power Spectral Density Testing for ITU-T G.9960 Power Line Devices

One of the fundamental tests that can be performed on OFDM-based Power Line Communication (PLC) technologies such as ITU-T G.9960 (G.hn) is Power Spectral Density (PSD) conformance. The measured PSD ...
Electronic Design

What’s the Difference Between Power Density and Power Spectral Density? (Download)

The basic definition of power density is the rated (or nominal) output power of a device divided by the volume (volume = x · y · z) occupied by the device. Common units of measurement for power ...