[amsat-bb] searching advice on low pass filter for 146 MHz

I received several suggestions, when I stated my problem lasst week. While exercising, I started to document my 'case' and now I would be glad, if you could have a look at my measurements:

http://www.hb9bnk.ch/index.php?id=59&L=1

and let me have your opinion !

I guess, that Domenico had the ultimate answer: two huge filters (if the problem can be solved at all) or Power-off of the preamplifier

Thanks and

73 Werner, HB9BNK