I read in !emc-pstc that [email protected] wrote (in <2714440827 092002/A03673/PLANET/1209DA2C0D00*@MHS>) about 'MEASURING VSWR WITHOUT A DIRECTIONAL COUPLER' on Fri, 27 Sep 2002: >The answer to your question is in my original e-mail on the subject. > >I said at the end... > >"One error that may creep in, is if the "device leg" of the "T" is >extended with co-ax or is relatively long (>lambda/20)"
Ah, I missed that. Sorry. > >Having dealt with the fundamental of the problem, it is up to the user >to determine if the error is too large. If the "T" piece is in "N" >type - that's, say, 3cm per leg... I would estimate that there would >not be a significant error intil the wavelength is greater then less than? >60cm ~ >400MHz. Smaller "T" pieces could be used - e.g. TNC or SMA. BNC? Or do you find the contacts a bit unreliable? -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc 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://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
