Steve,
I do have the same feeling; in these days (since 1.372 DSP gain control
introduced) the NR improves signal to noise ratio. Check out ages 15/16
and 46 of the manual.
I think under quiet band conditions no NR is needed but a "real (LF) NR"
system as in the Omni 6+ and apparently in early Orion firmware versions
wud be nice to have too. Maybe release 2.0 gives us the option ??
Guess "real" NR is more often required than SN/R improvement?? (160m?)
Am I missing something ? and just FWIW (consider myself not being a real
technician nor an analyst)
73
Harry
PA3ARM
-----Oorspronkelijk bericht-----
Van: tentec-bounces@contesting.com
[mailto:tentec-bounces@contesting.com] Namens Steve N4LQ
Verzonden: woensdag 15 juni 2005 2:59
Aan: Discussion of Ten-Tec Equipment
Onderwerp: Re: [TenTec] Orion NR problem
I don't recall the firmware revision my Orion had when I bought it but I
do
recall turning on the NR and my jaw dropping. It was awesome. All the
band
noise vanished and I none of the goofy dsp artifacts that most rigs
have.
Then I "upgraded" to a new firmware and the NR ceased to work. Pushing
the
button had a tiny effect but it was almost useless. I tried many master
resets to no avial. I think we see different opinions here because some
NRs
are working and some are not or not much.
Steve Ellington
N4LQ@iglou.com
----- Original Message -----
From: <K4IA@aol.com>
To: <tentec@contesting.com>
Sent: Tuesday, June 14, 2005 8:29 AM
Subject: Re: [TenTec] Orion NR problem
> Gary
>
> I sometimes find it hard to tell if the NR is working or not. Band
noise
> is
> still there. But I find that if I let the NR "do its thing" the S
meter
> gradually declines and even though I still hear noise - it is at a
much
> lower
> level than before. My natural inclination was to crank up the audio
gain
> a
> little bit so I could "hear" the radio. Then when a signal comes on,
it
> really
> jumps out at you.
>
> I have found that you must push the button firmly. A partial push or
a
> light touch will change the display but not engage the NR. I know that
> makes no
> sense but that is the way it works on my Orion. I use a setting of 3
as
> I
> find that reduces the noise in about a second or two with a minimum of
> distortion.
>
> k4ia
> Craig "Buck"
> Fredericksburg, Virginia USA
>
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> TenTec@contesting.com
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>
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