Lucky wrote:
You see I need a notch filter on the HF-150 imo. I was thinking of picking
up just the NIR-60 for now. It's just a notch filter. The 150 doesn't really
need DSP, but it would make it even better. But, I could use a DSP unit with
the rest of rigs except the Icom R-75 which already has superb DSP for the
price.

Be warned that automatic notch filters don't work except on really loud
heterodynes. The weak ones stay there, hour after hour, if you're listening
to some broadcast with a weak het on it.

Manual notch filters take out what you tune them to take out, no matter
how weak.

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


On the internet, nobody knows you're a jerk.

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.

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

That *is* the icom DSP that is in the 706..
Some other icoms too...
That was an option on the 706mk2, and standard
on the 706mk2g. MK

schrieb:


That *is* the icom DSP that is in the 706..
Some other icoms too...
That was an option on the 706mk2, and standard
on the 706mk2g. MK


I know. But AFAIK the UT-106 was released for the PCR-1000 first.