 In order to see characteristics precisely, please choose "View"
-> "Scale Change" on the menu.
Put 5000 for End Frequency and -70 for Gain Range.
The first WINFIR (U_0, Kaiser Constant=4) is like following.
Second WINFIR (U_1, Kaiser Constant=9) is like following. The reduction
ratio has become deep but the slope of Stop Band is slow compare to U_0.
If you want its coefficients, please choose "Tools" -> "Save Coefficients" on the menu. The monitor window (U_0) needs to be enabled.
And please understand that long Tap Count is better to have good characteristics
but may cause some difficulties for hardware/software implementation.
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