There are all sorts of spectrum analyzers and receivers out there with coverage to 30 Hz. Agilent and R&S readily come to mind. The HP 8566 Opt 462 was impulse BWs, not 6 dB.
The difference between 3 dB and 6 dB BW will only affect BB signals, like rectification harmonics. If you know the shape factor of the 3 dB filter (Gaussian for the 8566) vs. the 6 dB filter, you can calculate how much extra signal the 3 dB BW machine would report over a 6 dB BW machine. Ken Javor Phone: (256) 650-5261 > From: "[email protected]" <[email protected]> > Date: Thu, 17 Jun 2010 16:58:19 -0700 > To: <[email protected]> > Subject: Spectrum analyzers for MIL-STD-461 CE101? > > Hi, > > I need to rent a spectrum analyzer for performing MIL-STD-461 CE101 tests. > Although the requirements go down to 30Hz, I only need to start at 100Hz. > > After sifting out analyzers with frequency range limits, and those with > -3dB IF bandwidth specifications, I keep coming back to the venerable HP > 8566B or 8568A with option 462 (bandwidths spec'd at -6dB). > > 1) For those who perform this test, what spectrum analyzers do you use? > 2) How much different will readings be if I used equipment with -3dB IF > bandwidth specs? > > TIA, > Pat Lawler > EMC Engineer > SL Power Electronics Corp. > > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <[email protected]> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieeecommunities.org/emc-pstc > Graphics (in well-used formats), large files, etc. can be posted to that URL. > > Website: http://www.ieee-pses.org/ > Instructions: http://listserv.ieee.org/request/user-guide.html > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > Scott Douglas <[email protected]> > Mike Cantwell <[email protected]> > > For policy questions, send mail to: > Jim Bacher: <[email protected]> > David Heald: <[email protected]> - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
