[TenTec] Receivability

[Duane Grotophorst]

I have little doubt the Orion's RX performance will be
an order of magnitude better that the 505 or the
Peg/Jup. Simply because economical DSP hardware has
pretty well caught up to what's theoretically
possible. And by applying good design practices to the
analog RF stages of the design it should be a winner.
After a few rounds of firmware tweaks it should really
play well. The last key thing to put it completely
over the top will be its software control capability. 

Duane
N9DG


--- roger <rcook@hiwaay.net> wrote:
> Great review, Since one of the design Engineers came
> from Kachina to TenTec
> what do you bet that the Orion has the best of both
> worlds.
> KO4O
> ----- Original Message -----
> From: "Duane Grotophorst" <n9dg@yahoo.com>
> To: "George, W5YR" <w5yr@att.net>; "Gary Hoffman"
> <ghoffman@spacetech.com>
> Cc: "Ten-Tec Reflector" <tentec@contesting.com>
> Sent: Tuesday, October 29, 2002 23:21
> Subject: Re: [TenTec] Receivability
> 
> 
> >
> > I've recently acquired a Kachina 505 and ave done
> some
> > subjective comparisons of the filtering in it vs.
> the
> > Pegasus and IC-765. For the same SSB bandwidth the
> > Pegasus filter seems to be about the same as the
> 765
> > for shape factor, the 505 clearly has the better
> shape
> > factor than either the Peg or 765.
> >
> > Another area that was interesting to compare was
> the
> > Noise Reduction of the Peg vs. 505, there are some
> > very notable differences with each radio having a
> > distinct adavntage depending on what you are
> trying to
> > do. For relatively loud signals (about S-7 and
> > greater) the Pegasus NR did a better job of
> "erasing"
> > the noise without adding any "watery" sounding
> effects
> > to it like the 505 tends to do. For reducing the
> noise
> > around a really weak signal however the 505 has a
> > distinct edge, it will make marginally readable
> > signals more copyable, the Peg's NR does little or
> > nothing for those same conditions.
> >
> > Other than these two areas there doesn't seem to
> be
> > that dramatic of a difference between the Kachina
> 505
> > and Pegasus for performance. In the end the
> Pegasus
> > wins overall by virtue of its software support.
> >
> > Duane
> > N9DG


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