Derek, The only power meter/sensor combo that I know of that will measure down to 10kHz and -30 dBm is the Rohde & Schwarz NRVD (dual channel) and NRVS (single channel) with a NRV-Z51 sensor. The sensor has a range from -30dBm to +20dBm. Keep in mind that measuring at the bottom end of the sensor's range will take more time to settle, and you will need to zero the sensor often. There may be other model sensors from R&S that will work for you. You might try looking at Boonton. I think they have some RF voltage sensors that may go down that low. The sampling-tee is also a good idea. You can also use a spectrum analyzer instead of a power meter to measure the power from the directional coupler. Bob Richards, NCT Square D.
Derek Walton <[email protected]> wrote: Hi Folks, I'm trying to improve my Conducted immunity test method when testing from 10 kHz to around 200 kHz. The signal from the diredctional coupler is quite small, around -20dBm, and my current power meter sensor is on the limits of it's range. Can anyone suggest a power sensor for use with the HP 437B ideally, that can measure down to -30 dBm and at least 10 dBm, with a freq range of 10 kHz to 400 MHz? If no such sensor exists ( and I've not found one... ), can anyone suggest a power meter/sensor combination. I only need a single channel, but two channels would be OK too. Thanks, -- Derek N. Walton L F Research Poplar Grove, IL 61065, USA ----------- ---------------------------------------------------- This message is from the IEEE Product Safety Engineering Socie! ty emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/listserv/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Bob Richards [email protected] http://www.toprudder.com -------------- ------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/listserv/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
