[TenTec] Orion II NR with 2.031

[Douglas Shock]

I don't know about that Henrick. Unless I am contesting, I leave the 600 and
300 off and use auto. Seems to work pretty well.



I thought I was onto something between the roofing filters and the NR but it
turned out to be nothing. The distortion on weak signal copy is independent
of the selected roofing filter when using narrow roofing filters.



The NR works great until the signal drops below a certain threshold and then
distortion is introduced to the signal.



The big boys here on this reflector are hashing this and many other items
out so I am sitting back watching, learning, and being quite. Hopefully
TenTec is watching as well.


On 3/18/06, Henrik <oz1ing at mail.dk> wrote:
>
> Hi Doug,
>
> They are going to be installed today.
>
> I suppose I will make it auto.
>
> Should work best I guess.
>
> Henrik
>
> -----Oprindelig meddelelse-----
> Fra: tentec-bounces at contesting.com
> [mailto:tentec-bounces at contesting.com] På vegne af Douglas Shock
> Sendt: 7. marts 2006 01:26
> Til: Discussion of Ten-Tec Equipment
> Emne: Re: [TenTec] Orion II NR with 2.031
>
> Henrick,
> Any chance you have the 600 and 300 hz roofing filters installed? And if
> so
> is your filter selection auto?
>
>
> On 3/6/06, Henrik Weiss <oz1ing at mail.dk> wrote:
> >
> > And you dont have any distortion on signals ?
> >
> > Cause I am.
> >
> > 73 - Henrik
> > OZ1ING
> >
> >
> > Douglas Shock <douglas.shock at gmail.com> wrote:
> > > Well, I have spent the last 4 hours working with release
> > > 2.031 and my
> > > impressions are far different of the NR capability than when
> > > it first came
> > > out.
> > >
> > >
> > >
> > > My receive antenna is a rain gutter. The band of choice for
> > > week signals
> > > today is 40m.  I have several CW signals in the noise floor
> > > so NR is very
> > > important.
> > >
> > >
> > >
> > > My observations are that it actually works very
> > > well...however there is
> > > little to no room for error on extracting the weak signal
> > > from the noise
> > > floor. So you better be sure the sig is zero-beat to your
> > > passband or forget
> > > it.  I found that 4 works for most of the cases but not all
> > > the time. I also
> > > found that it seems to work better when the BW is as narrow
> > > as possible.
> > >
> > >
> > >
> > > Once engaged, the noise floor drops immediately...very nice.
> > > On loud
> > > signals, s3 or better, the NR actually enhances the
> > > signal...very nice copy
> > > indeed.
> > >
> > >
> > >
> > > So overall...the TX audio reports have been exceptional
> > > while running the
> > > Heil FR-40 via the W2IHY 8 band EQ once I made the correct
> > > adjustments to
> > > compensate for undocumented changes.
> > >
> > >
> > >
> > > NR actually does work once you figure out how to dial it
> > > in...This dialing
> > > it in does appear to have changed since 2.030. Not sure why
> > > but needless to
> > > say...it still works and even better. Going back and forth
> > > from 2.030 and
> > > 2.031, the noise floor levels drop significantly on 2.031
> > > when compared to
> > > 2.030. Not absolute yet but TenTec is certainly back in the
> > > right direction.
> > >
> > >
> > >
> > >
> > > I wish my observations could be more scientific with scopes
> > > and analyzers
> > > but it is what it is...my observation.
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Catch yea on the air!
> > >
> > >
> > >
> > > Doug / K0ZU
> > > _______________________________________________
> > > TenTec mailing list
> > > TenTec at contesting.com
> > > http://lists.contesting.com/mailman/listinfo/tentec
> >
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> >
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