Richards,
I echo your comments. I use the built in DSP of my Omni VI+, with it's full
load of I.F. filters (including the roofing filter from Inrad), as well as it's
PBT, and manual notch, constantly ride the RF gain, and sometimes even use the
LP filter. What a fun rig to use!!! This is all prefaced by an MFJ-1025 Noise
canceling phasing box, and followed by a BHI Corp external DSP.
The BIGGEST help in digging out the weak ones, for me, especially with my
hearing loss getting worse every day, is using headphones.... but I bet that's
old news for those trying all these tools for receiving!!
I am surely impressed with the roofing filter kit from Inrad. According to
their testing, it puts my Omni VI+ squarely between the Orion and Orion II, if
you use the dynamic range chart on NC0B's site. I can live with that!!!
Greg Schippers, KC8HXO
"Those who would give up essential liberty to purchase a little temporary
safety deserve neither liberty nor safety." - Benjamin Franklin
--- On Sat, 5/14/11, Richards <jruing@ameritech.net> wrote:
> Hi Guys --
>
> I often use NR to advantage on SSB, and it can make a
> substantial
> difference in reading SOME weak, noisy signals.
> HOWEVER... one's
> satisfaction will depend entirely on his level of
> expectation. It
> works well, as long as you do not ask too much of it.
> NR CAN help in
> SOME cases, but is no panacea and cannot remove all noise,
> and it DOES
> ALTER the signal. Noise is received right
> along with the desired
> signal, and it affects the signal as it removes "some" of
> the noise.
> Sometimes it helps, and sometimes not.
>
> Thus NR becomes, in my view, AT BEST, just one more
> tool in the tool
> box. Sometimes it is the right tool for
> the job, and other times, it
> is not.
>
> Just MY take.
>
> ------------------
> Happy Trails.
> ======================= Richards / K8JHR
> =========================
>
> On 5/14/2011 12:29 PM, k3miy@csonline.net
> wrote:
> > A correctly used bandpass filter will beat any
> > noise reduction scheme.
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