When enabling the ANF (Auto Notch Filter) on the DSP menu (not to be confused with the TNF or Tracking Notch Filter), SSB audio becomes fuzzy and/or distorted as the gain is increased on the ANF slider control.
From a subjective standpoint, the ANF does not appear to be as effective in removing offending carrier tones in SmartSDR as PowerSDR did on my old Flex 3000.
Are there any recommendations on how to best utilize this feature or work around the distortion while still mitigating offending carrier tones? Is this a known issue? Are there any plans to enhance the ANF feature?
I guess it's "on the list" but no relief is in sight.
Not to dig up an old problem, but the Automatic Notch Filter (ANF) in v1.5.1 still imparts a "gravelly" distortion to received SSB audio, especially if the station has a prominent low-end response.
I also note that the ANF seems to un-mute briefly during parts of the received audio, so bits and pieces of the notched signal get through. However, the notch mutes perfectly during periods of silence, even with mild QSB of the "offending" carrier.
I know that these things are always "works in progress" but wanted to register my observations for the record.
- 5116 Conversations
- 1556 Followers
- 3014 Conversations
- 624 Followers
- 3549 Conversations
- 912 Followers
- 855 Conversations
- 148 Followers
- 2917 Conversations
- 835 Followers