Prof. Dr. Thomas Baier, DG8SAQ made a Workshop Presentation at the Friedrichshaven HAM RADIO Convent:
Following his presentation, and making his experiments, is a learning expiriences: DOWNLOAD it here...
This picture show one of his experiments, messuared with my VNWA 2.6, a PHANTASTICH TOOL:
|The RESULT of MY FILTER:
DONE with his TESTBOARD, LOOK here...
This filter is for the 60 meter band, and show a fine filter, with a perfect SWR, impedans, and -3 db bandwith, with less than -0.5 db RETURNLOSS, designet with ELSIE, a Simulation program.
The TESTBOARD, mounted with components JUST works.
you can change the components to STANDARD values, and still se the
TRY IT FOR YOURSELF