Hi,
As mentioned elsewhere very narrow bandwidth using the filedtest APF firmware causes some ringing (expected) which really causing problems when receiveing VERY, VERY weak CW signals (where it's most needed) at or below the noise level. If the signals are just a tiny bit stronger the APF works fine, but as said the VERY, VERY weak ones are easier for me to copy using the EQ in combination with the dual PB feature. Perhaps decreased Q factor using the APF feature could decrease the ringing a bit and then the APF would dig out the VERY, VERY weak ones?
As this is APF feature still is a pre-release version I assume improvements can be made to the final version. Keep up the good work, guys!
73 de Stefan, SM4OTI
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