[Premium-Rx] Best Premium Receiver?

Thomas B. Roach thomasbroach at ssctv.net
Wed Nov 7 10:09:13 EST 2007 

I used to own the HF100A and used it with the DX sloper antenna, a Rubidium
frequency standard, SE-3, and MOST importantly, a Singer Spectrum Analyzer.
The latter would clearly show signals totally inaudible to my ears. Thus, in
many cases, you could prove a signal was there even if you couldn't hear it
well enough to determine its content. I was measuring the RF to one Hz as an
aid to identifying and separating some "tropicals" (e.g. say Indonesia,
Myanamar, and Central America).Thus while not capability was not "useful",
it demonstrated to me the truly remarkable qualities of the HF1000A. I think
I still have the database I created in MS Access which documented the
interesting stability, or lack thereof, displayed by many SW stations. I did
find that you could often use their small differences in RF to tell them
apart.

I was living in Grass Valley, CA most of the time I did this research. 

Tom Roach


-----Original Message-----
From: premium-rx-bounces at mailman.qth.net
[mailto:premium-rx-bounces at mailman.qth.net] On Behalf Of Don
Sent: Tuesday, November 06, 2007 6:19 PM
To: 'Clemens Paul'; Premium-Rx at mailman.qth.net
Subject: RE: [Premium-Rx] Best Premium Receiver?

> It proves that the SE3 and not the WJ makes the difference,doesn't it?

>73
>Clemens
>DL4RAJ

I don't think I ever said anything about the WJ standalone - I have ALWAYS
used the SE3 in combination for the results I have reported on.

It’s the combination of the two.  

Its similar to saying "it’s the antenna not the receiver that matters" -
again its both not just one or the other.

By the way, the combination of the R-390A and the SE-3 is pretty sweet too.
Chuck Rippel turned me on to this one when we talked at a Grayland
DXpedition (not ham dxpedition, but SWL/TPDX).

You probably back in premium receiver where this R-390A/SE3 combination
picked up the last of the Radio St Helena broadcasts (off the old commercial
equipment) fading in several minutes before even the WJ/SE-3 did, then
followed by R3030A/SE3, the R590A(I recall having an SE-3 on this one as
well but I'd have to check) as well by 535D(Kiwa modified) and then finally
the 545?  That makes the R-390A/SE-3 even more sensitive to weak signals by
a few minutes during their fade-in here on the left coast.

I certainly enjoy my WJ's for weak signal dxing. If I want dx music, the
Kiwa-modified NRD535D is even better than the others.

Best 73
Don



-----Original Message-----
From: Clemens Paul [mailto:cpaul at gmx.net] 
Sent: Tuesday, November 06, 2007 12:32 PM
To: Don
Subject: Re: [Premium-Rx] Best Premium Receiver?

Don,

>The article does not say that it was done with a SE-3 with the WJ.
>Even you know that the synch detector of the WJ's isn't good without the
>SE-3.
>So this does not prove anything about the WJ+SE-3, does it?

It proves that the SE3 and not the WJ makes the difference,doesn't it?

73
Clemens
DL4RAJ




----- Original Message ----- 
From: Don
To: Premium-Rx at mailman.qth.net
Sent: Tuesday, November 06, 2007 4:18 PM
Subject: RE: [Premium-Rx] Best Premium Receiver?


Clemens

The article does not say that it was done with a SE-3 with the WJ.

Even you know that the synch detector of the WJ's isn't good without the
SE-3.

So this does not prove anything about the WJ+SE-3, does it?

Perhaps you can point to such a test?




-----Original Message-----
From: premium-rx-bounces at mailman.qth.net
[mailto:premium-rx-bounces at mailman.qth.net] On Behalf Of Clemens Paul
Sent: Friday, November 02, 2007 12:13 PM
To: Premium-Rx at mailman.qth.net
Subject: [Premium-Rx] Best Premium Receiver?

Hi,

>For example, I read that the WJ
>HF-1000A/8711A blows away the Icom 7800's  receiver or that the Icom
IC-R9500
>isn't necessarily the greatest.

It would be interesting to know where you've read such a biased nonsense.
Go to
http://www.ratzer.at/9500.php

Then scroll down just below the third picture.
Load down the the mp3 file on the end of the second text paragraph,see
below:

"Mittelwellenempfang: Radio Tien Gold, Niederlande auf 1008 kHz. Sehr gut
erkennbar die
ausgezeichnete Arbeitsweise des Synch-AM Empfangs im 9500, welcher das
Fading des Musiksenders
wesentlich besser verarbeiten kann als der HF1000A. Aufnahme von Radio Tien
Gold, Niederlande,
8. März 2007, 2250 UT. Bandbreite 8 kHz. Reihenfolge: 30 sec 9500, 30 sec
HF1000A, 30 sec
9500, 30 sec HF1000A. mp3 Audiodatei, 1,8 MB"

Now you can hear a *proof* not a rumor which one performs better.
Both rx operate in synch am and the 9500 copes much better with the fading
am signal than the
HF1000A.
The sequence is 30 seconds 9500,30seconds HF1000A,30seconds 9500,30seconds
HF1000A.

Regarding DR3 and other essential specs the 9500's rx on sw is virtually
identical to the
7800's rx.

73
Clemens
DL4RAJ







----- Original Message ----- 
From: Aidehua at aol.com
To: premium-rx at mailman.qth.net
Sent: Tuesday, October 16, 2007 9:22 AM
Subject: [Premium-Rx] Best Premium Receiver?



Just curious as to how some premium  receivers stack up against some others,
either consumer or commercial-grade  rigs. For example, I read that the WJ
HF-1000A/8711A blows away the Icom 7800's  receiver or that the Icom
IC-R9500
isn't necessarily the greatest.

My  personal favorite is indeed the HF-1000A because of it's sensitivity,
selectivity and superb audio recovery.  A close second is the Harris
RF-590A....Just wondering what some of your favorites may be....I challenge
my
receivers through their ability to pull out weak signals on the Tropical
Bands....The
HF-1000 seems to hear sigs my other receivers cannot.  Your  mileage may
vary.  Please share your experiences....

Regards,
Ed  NI6S




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