Cleveland, Ohio—RF test equipment maker Keithley Instruments, Inc. is dishing up its handheld Model 3500 Portable RF Power Meter. Billed by the company as the first lab-quality portable RF power meter ...

Fig. 1: The meter measures voltage and current as well as power and energy. San Diego-based Marc Mann keeps with the engineering mantra of “doing more with less” in describing several digital panel ...

Berkeley Varitronics Systems has introduced its YellowFrog power meter, which makes measurements from 800 MHz and 2.2 GHz with an accuracy of ±0.5 dB. It connects directly to the company's Gator, ...

Since the mid 1980s, employees at the Florida Power & Light Co. (FPL) had been using portable, temporary power quality meters to help customers identify problems in their facilities. These meters cost ...

Digital modulation has a lot to answer for. Although the spectral efficiency of communications systems has improved, many signals resulting from digital modulation have significant power variation. In ...