Absolutely. In fact, the one and only weak link in my RX-340/Pegasus
combination is the relatively high phase noise of the Pegasus synthesizer.
Not so with the RX-340. In fact, I can null a received CW tone with known
low phase noise on the RX-340 to a greater degree than I can with my Omni
Six which uses crystal mixing. The synthesizer in the RX-340 is that good.
Another absolutely stunning performance feature of the RX-331/340 is the
I.F. DSP shape factor. I am now using a Fast Fourier Transform program from
Sound Technology Corporation called Spectra-Plus. This is incredible
software if you're an audiophile and works very well in characterizing your
own transmitted SSB bandwidth for those who are now venturing into the Hi-Fi
SSB scene. If you have a sound card in your PC, here's the link to a free
30-day trial:
http://www.telebyte.com/pioneer/
By clicking on the peak-hold button you can almost instantly characterize
any receive or transmitted passband characteristic. With Spectra Plus, it's
very easy to see the RX-340's tight filter skirts.
Of course, the heart and soul of the RX-340/Pegasus world-class combination
is the N4PY software. Those of you who think that excellent QSK cannot be
achieved with "separates," QSK is every bit as good as any other Ten-Tec
with Carl's sequencing protocol. At some point, I'm hoping that Carl
bullet-points the entire feature set of his software as it has evolved over
the past year and a half.
As Carl noted, the front end on the RX-331/340 receivers is outstanding. A
few weeks ago, I computed that you needed something like a 2 watt signal
driven directly into the receiver's antenna jack to overload and compress
the front end! (preamp off).
I think it would be great if Ten-Tec and Carl could demo of this combination
at Dayton. I guarantee it would steal the show and be the talk even among
the die-hard FT-1000MP and ICOM-765PRO users.
-Paul, W9AC
----- Original Message -----
From: "Mike Hyder -N4NT-" <N4NT@chartertn.net>
To: "Carl Moreschi" <n4py@earthlink.net>; "tentec" <tentec@contesting.com>
Sent: Sunday, May 06, 2001 12:28 PM
Subject: Re: [TenTec] Rx-331 Front End - N4PY
>
> That is impressive -- a notable tribute to the clean signal transmitted by
a
> Delta 580, as well as the Rx-331 receiver. Do you think that a
synthesized
> radio's transmitter would be as clean?
>
> 73 de Mike N4NT@chartertn.net
>
> ----- Original Message -----
> From: "Carl Moreschi" <n4py@earthlink.net>
> To: "tentec" <tentec@contesting.com>
> Sent: Sunday, May 06, 2001 10:53 AM
> Subject: [TenTec] Rx-331 Front End - N4PY
>
>
> >
> > I decided this morning to do an experment to see how resistant
> > my RX-331 is to front end overload. I have a dipole on a separate
> > feedline located about 100 feet from my tower. On my tower, I have
> > a log periodic 8 element antenna. I tuned the RX-331 to 21.250 and
> > was listening to a Russian station running about S7 on the log periodic.
> >
> > I setup my Ten-Tec 580 Delta to the dipole and tuned it to 21.050.
> > I transmitted a carrier. No effect whatsoever was heard on the RX-331.
> > In fact I found the RX-331 was not the least bit disturbed by the
Delta's
> > 100 watts until I got to within 10 kHz of the RX-331 tuned frequency.
> >
> > I thought this was very impressive. I have never seen another front
> > end on a receiver that was this strong. This would certainly solve
> > what I call the classic "field day problem", when you run many rigs
> > close together.
> >
> >
> > Carl Moreschi N4PY
> > Franklinton, North Carolina
> > n4py@earthlink.net
>
>
>
> --
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>
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