The 58542 from Gigatronics is a VXI bus power meter that operates from 10 MHz to 40 GHz. This power meter has a power range from -70 to 47 dBm. It can usually read over 150 readings per second and has a Burst Mode for capturing more than 5000 readings per second. This power meter measures peak power directly and has a built-in power sweep calibration system. The power sweep calibrator uses a 50 MHz amplitude controlled oscillator to step from -30 to +20 dBm in 1 dB increments. Each step is set using an internal thermistor - the standard for linearity. This power meter has dual channel operation, enabling to access readings from both channels simultaneously. It is available in a C-size, single slot VXI measuring 1.2 (Width) x 9.2 (Height) x 13.4 (Depth) inches and weighs 2.5 kgs.