At 09:38 AM 3/20/97 CST, you wrote: >Can anyone in this esteemed group recommend an amplifier for conducting >this radiated H field immunity test (30 Hz - 100 kHz)? Any assistance is >appreciated. > >The comments contained in this message are my own and not necessarily UL's >position > >Mike Windler >Underwriters Laboratories Inc. >International EMC Services >E-mail: [email protected] >Fax: 847-272-8864 >Phone: 847-272-8800 (ext. 43409) > We use the CROWN 2400 solid state bridge amplifier and an HP 33120A arbitrary waveform generator for RS101 as well as 1.5 KVA 120 or 240 VAC 50/60/400 Hz for disturbed power tests. The amp is designed for professional audio and lab use, simple mod to go to 100 KHz at full performance. It easily makes 120 VAC barefoot and drives a CDI 1000i backfilter/transformer for 240 VAC. CROWN assured me that my application was tame when they provided the mod - three years ago ;>) One word of caution, I use the amp on 120V, it did not do well (at full power) on a 15 amp branch circuit. We have a dedicated 20 A branch for it.
Ben Bibb, EMC Engineer LambdaMetrics, Inc. ACIL IEEE NARTE NVLAP FCC ESDA NO5K PO Box 1029 Cedar Park, Texas, 78630-1029 (512) 219-8218 Voice and Auto-fax
