Good People I am in search of a functional substitute for a Fluke 8920/8921. I have not been able to find an "in-production" instrument that has
1. thermal true rms converter with crest factor at least 7 2. BW at least 5MHz 3. extremely hi input Z, and "minimal" capacitance 4. no requirements for a manufacturer-only calibration 5. a peak error rating < 2% F.S. error over BW (Type Test requirements) Please note that I have not had good results using DSOs for the measurement of RMS Working Voltage. thanks much, Brian
