As it is stated, below -20dB, nothing at all comes through the switch. Then once you reach that level, output signal level suddenly begins increasing from zero. That obviously makes no sense and is probably only a result of an engineering spec being lost in translation when Marketing created the Data Sheet.
Losses are not an offset that must be overcome before any output is generated, but simply as Ken mentioned, a proportion of input power. Bob Wilson TIR Systems Ltd. Vancouver. -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: May 23, 2002 1:37 PM To: [email protected] Subject: RE: Coaxial Switches - use with spectrum analyzer and gear? That information is from an application document found on the Dow Key web site. I can't say that I fully understand it myself. Richard Woods Sensormatic Electronics Tyco International -----Original Message----- From: Ken Javor [mailto:[email protected]] Sent: Thursday, May 23, 2002 3:59 PM To: [email protected]; [email protected] Subject: Re: Coaxial Switches - use with spectrum analyzer and gear? I don't understand the snipped statement below. Isn't the loss just a fraction of the power flowing through the switch? ---------- >From: [email protected] >To: [email protected] >Subject: RE: Coaxial Switches - use with spectrum analyzer and gear? >Date: Thu, May 23, 2002, 12:22 PM > > A minimum power of about -20dbm must be used to overcome the > losses in the switch. ------------------------------------------- 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" ------------------------------------------- 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"
