[Elecraft] Spectrogram - again - No 2

[TL]

Hello again guys,
I'm a bit confused about the  response of my SSB filters (all ssb combinations).
What should the difference be (DB)  inside the "FIL1 OPt1 bandwidth"  and how wide is this bandwidth ?
(my k2 is still prior to any modifications #1574 , "old" crystals).
Thanks in advance 
Isaac, 4Z4TL


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