MEASUREMENT receivers are indispensable instruments for calibrating signal
sources and attenuators. The increasingly low power levels used in wireless
systems demand increasingly sensitive and accurate measurements. To meet t
his demand, Anritsu Co. (Richardson, TX), has introduced a new measurement
receiver-the model ML2530A (see figure). The receiver measures signals at f
requencies from 0.1 to 3000 MHz at power levels ranging from +20 to -140 dB
m. It is designed for nse in calibration laboratories as well as research a
nd production environments to calibrate attenuator levels and signal-genera
tor output levels. Measurements are displayed as units or subunits of decib
els, watts, or volts.