Ron Hardin schrieb:

I never use the automatic notches on any of my DSP's, so useless are they.

I liked the 'UT-106' DSP-option from the Pcr-1000 for its automatic
multi-notch only. This unit also works in the Icom 706 TRX-series.
It filtered very nicely especially very weak hets. But I found it was
useless on reducing QRM or QRN noise.
At least my manual notches on the NRD-525 and the external analog filter
notches of the Datong FL2 and the Dierking DG82NF have deeper skirts.