You are of course correct, although when we use a mains-voltage high-pass filter to protect an instrument during conducted emission testing, we would indeed compensate for loss in that manner. On the other hand, that filter is (or is intended to be) 50 ohms over its operating bandwidth.
Cortland Richmond > [Original Message] > From: ce-test, qualified testing bv - Gert Gremmen <[email protected]> > To: <[email protected]>; IEEE EMC & SAFETY PSTC <[email protected]> > Date: 11/11/2009 1:31:22 AM > Subject: RE: AC or DC coupling in emissions measurement > > >One could easily "calibrate out" this kind of response in software. > > No you should never do that, as the input impedance will not be > 50 Ohm anymore, and the 50 Ohm is part of the measurement system. > > Gert Gremmen > Ce-test, qualified testing bv - 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]>
