[ICOM] Pro 3 noise reduction

[peter markavage]

I use the noise reduction control to take out or reduce pulse-type
noises, ignition, motor, etc. It generally doesn't have any effect on
atmospheric-type noises.

Pete, wa2cwa

On Sat, 13 Aug 2005 13:40:03 -0400 "Jeff Frank" <jafrank at nyc.rr.com>
writes:
> I'm having a hard time finding any use for the noise reduction 
> control on my Pro 3.  It's not helpful to me under practically any 
> conditions when I'm on cw and I'm not crazy about it's usefulness on 
> ssb. One of the reasons I bought the Pro 3 was because the noise 
> reduction was supposed to be improved over the Pro 2. The earliest 
> product reviews on e-ham.net include reports on how much improved 
> the NR is, and how happy people are with it. I never had a Pro 2 so 
> I can't say anything about the comparison. Maybe I'm not using it 
> correctly or maybe there's a problem with my rig. I find that unless 
> a cw signal is relatively strong (s-5 or better) the NR control 
> distorts the signal and makes it rough sounding and HARDER to copy. 
> If the signal is weak, near the noise, using the NR distorts it into 
> unreadability and I can copy it better without the NR. And if the 
> signal is stronger, I don't need the noise reduction anyway. If I 
> keep the NR setting below about 9:00, it does make a little positive 
> difference but I don't feel overall it's doing very much. I don't 
> operate much ssb, but when I have used it, it just seems to take the 
> highs out of whatever noise there is, and I could do that with any 
> decent audio filter. I would be very interested in hearing what 
> other people's experience with the NR on the Pro 3 is so I can try 
> and make an educated guess as to whether or not there is anything 
> wrong with mine. If anyone is getting good results with theirs, 
> please let me know what your settings are and under what kind of 
> band conditions. And if anyone had the Pro 2 before the Pro 3 I'd 
> sure like to hear how the Pro 3 NR is an improvement over the older 
> model.  Thanks very much.
> 
> Jeff KX2P