Filters shapes in the IC-756 PROII
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Here is  how I set up the filters on my 756 PROII, showing Frequency vs. Amplitude plots for both Sharp and Soft, but I prefer the Sharp.  Input was white noise from 10 meter band, so not a perfect test.  I switch MixW2 to use Filter 1 to look at all the signals in a 2.6Khz slice of the band, then Filter 3 for the QSO using macros that are part of my CQ, Reply, and Bye commands.  

 

Filter 1, SSB Voice Medium, 0-2600   Sharp

 

Filter 1, SSB Voice Medium, 0-2600 Soft

 


Filter 2 SSB Voice Narrow, 200-2000  Sharp

 

Filter 2 SSB Voice Narrow, 200-2000  Soft 

 


Filter 3 SSB PSK31 Very Narrow, 1450-1550  Sharp

 

Filter 3 SSB PSK31 Very Narrow, 1450-1550  Soft (No difference)