I'll try to explain quite; have you ever turn on a cheap CB and turn the
gain up? White noise, hiss, back round rush, your ears are shutting
down but no signals are heard. Now on a good receiver this white noise
goes down, but on the Jupiter it goes way down, I mean easy listening.
Jerry
Jeff Peacock wrote:
>
> "am beginning to wonder what "quiet" is"
> Thats the million dollar question. To me a quiet receiver is when there is a
> signal down in the mud such as on 75 or 160 meters. Turning up the af gain
> makes the floor noise the same but make the station signal louder. Thats to
> me is a quiet receiver. The filters help but in some cases just the
> quietness of the receiver is the only thing that will bring that station in.
> Jeff
> ve3ios
> ----- Original Message -----
> From: <cyr999@extremezone.com>
> To: "Joe Word" <joe_word@yahoo.com>
> Cc: <tentec@contesting.com>
> Sent: Monday, April 01, 2002 5:39 PM
> Subject: Re: [TenTec] Is Jupiter > Icom 746: what is "quiet"?
>
> > Hi all -
> >
> > I find it quite interesting that Joe has aid the Jupitor is quieter. I
> have no
> > way of knowing since I have never even seen a Jupitor. What I am REALLY
> curious
> > about is how the phrase "Quieter" is defined. In one sense, if you hear
> nothing,
> > a rig will be really quiet! On the other hand a rig could be quiet yet in
> doing
> > so shut out some signals you'd really like to hear. I know I sound like a
> techno
> > idiot, but I am beginning to wonder what "quiet" is. Anybody care to share
> a
> > practical definition of a "quiet rig"?
> >
> >
> > I have an interesting last two months which I feel has opened my eyes a
> bit.
> > When I finally cleared up a few internal shack errors (with George's
> help), my
> > 756 PRO ran circles around my OMNI V. A took me a little bit of time to
> sort out
> > some problems that I created when I rearranged my shack upon getting the
> 756 -
> > mainly ground loops and RFI. (One thing I did was hookup an external audio
> amp
> > that is totally cool). Once my idiot mistakes were taken care of I could
> truly
> > experience the 756 PRO. It is a phenomenal rig.
> >
> > Now don't get me wrong, I LOVED that OMNI V and I love TenTec as a
> company. I
> > still do and always will. But I have to say that I feel I listened to the
> > "crystals are the only way" theme for too long and it made me narrow
> minded. The
> > 756 PRO is one terrific rig - no matter where it's made.
> >
> > Now here's the interesting part - once I learned how to use it and got
> used to
> > the characteristics of a DSP rig, I realized my "quiet" OMNI was not
> hearing
> > sigs the 756 was hearing. I know very little about interpreting the spec
> > comparisons as shown on Elecraft's chart for all the major rigs, but I do
> know
> > what I hear in the shack. So how do we define a "quiet" receiver?
> >
> > Quoting Joe Word <joe_word@yahoo.com>:
> >
> > > John,
> > >
> > > I did own an Icom IC-746 and now own a Jupiter.
> > > Compared them side-by-side for about a month. I
> > > decided to keep the Jupiter and sell the IC-746
> > > because the Jupiter was much quieter on receive. Here
> > > are my thoughts on the two rigs:
> > >
> > > Jupiter strong points.
> > > 1. Quiet receiver.
> > > 2. Better audio reports on transmit.
> > > 3. Digital filters, I use them as often as I use RIT.
> > > 4. Very seldon use NR because the rig is so quiet, but
> > > used NR all the time on the IC-746. NR does work great
> > > on 75 meters and has no (none) watery sound.
> > > 5. Not picky about SWR, will put out full power at
> > > high SWR.
> > >
> > > IC-746 strong points and what you lose with the
> > > Jupiter.
> > > 1. One button band selection.
> > > 2. Triple band stacking registers.
> > > 3. Twin passband tuning.
> > > 4. Antenna tuner.
> > > 5. Much better display.
> > > 6. Better control knob feel, the Jupiter's multi knob
> > > feels like you are turning a stick molasses.
> > > 7. Less prone to have RF problems in rig.
> > >
> > > Well this is my opinion...
> > >
> > > Joe K9MAN
> > >
> > >
> > >
> > > __________________________________________________
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> >
>
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