That sounds a bit confusing to me. VHF is typically 30 MHz to 300 MHz, and an LISN is a device to stabilize the impedance of a powerline to the EUT. Traditionally, an LISN "decouples" itself from impedance control when the length of the powerline to the EUT is about 1/8 lambda or more. Current standards recognize this by defining a powerline length of 1 meter and an upper measurement bound of 10 MHz. Keeping to this philosophy, a 300 MHz LISN would only allow for about a 3 centimeter long powerline.
I think you need to clarify what VCCI standard you are trying to work with. Ed Price WB6WSN Chula Vista, CA USA From: Youngsik Kim [mailto:[email protected]] Sent: Wednesday, November 13, 2013 9:19 PM To: [email protected] Subject: [PSES] VHF-LISN for conducted emission test I'm looking for a VHF-LISN It is a product that has become a issure in VCCI Please tell me if you know manufacturer... - ---------------------------------------------------------------- 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.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) <http://www.ieee-pses.org/list.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.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) 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]>
