Hi Steve, Each attenuator section is designed to present a 50 ohm input impedance when terminated in 50 ohms. Of course that will change as frequency is increased and inductive effects take greater prominence.
At what frequency(ies) did you make your measurements? What were the actual SWR readings in the various attenuator section combinations? Is your signal generator a 50 ohm output impedance unit, and do you have a known good 50 ohm termination for the attenuator output port? If the resistors measure within a few percent of their nominal values, I would suspect the slide switches and/or solder joints along the path. I would also use an impedance bridge/analyzer as a check on your SWR meter. 73, Mike, K8CN ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
