Re: [HCDX] the Grundig Eton G5: a major disappointment
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Re: [HCDX] the Grundig Eton G5: a major disappointment



I am reluctant to make specific receiver recommendations. There are lots of reviews out there, and no doubt others have first-hand experience with receivers benefiting from good image rejection. 73, Glenn

--- On Sat, 12/20/08, aurel chiochiu <acq@xxxxxxxxxxxx> wrote:

> From: aurel chiochiu <acq@xxxxxxxxxxxx>
> Subject: Re: [HCDX] [mwdx] Re:  the Grundig Eton G5: a major disappointment
> To: mwdx@xxxxxxxxxxxxxxx
> Cc: hard-core-dx@xxxxxxxxxxxxxxxx
> Date: Saturday, December 20, 2008, 9:10 PM
> Warm greetings Glenn !
> 
> I'm actually back at the computer since a bunch of
> powerlines-like noise (TV sets in the neighborhood ?)
> appeared throwing away any audio from the 585 Spaniard and
> likely others...
> 
> I think in the Sanyo, the IF is around 910, since I do get
> like a pulsating growl right on 540 with bits of
> poor-strenght audio from the 1450 local tx which dissapears
> when tuning on either the low or the high side of 540 and it
> sounds really weak...
> 
> What double-conversion receiver would you suggest me ? We
> might try out a few in the medium price range if there are
> any MEDIUM...
> 
> May the good DX be with you !
> Bogdan Chiochiu in Pierrefonds / Montreal
> 
> 
>   ----- Original Message ----- 
>   From: Glenn Hauser 
>   To: mwdx@xxxxxxxxxxxxxxx ; aurel chiochiu 
>   Cc: hard-core-dx@xxxxxxxxxxxxxxxx ; Sylvain Naud 
>   Sent: Saturday, December 20, 2008 8:52 PM
>   Subject: [mwdx] Re: [HCDX] the Grundig Eton G5: a major
> disappointment
> 
> 
>   Bogdan,
> 
>   Too bad you got another cheap radio with little image
> rejection. Hearing 1450 signal on 550 is not a spur (which
> implies it is transmitted by the station), but an inherent
> characteristic of radios with an IF (intermediate frequency)
> of 450 kHz. Double that, subtract from true frequency, and
> you get the image produced in the receiver. There is the
> formula. Sometimes the IF is 455 in which case the image is
> 910 kHz below. A double-conversion receiver (mainly for
> shortwave) should reduce or eliminate this problem.
> 
>   73, Glenn Hauser
> 
>   --- On Sat, 12/20/08, aurel chiochiu
> <acq@xxxxxxxxxxxx> wrote:
> 
>   > From: aurel chiochiu <acq@xxxxxxxxxxxx>
>   > 
>   > I'm writing again because we just tested the
> Grundig
>   > Eton G5 receiver and we are highly disappointed...
> We get
>   > overload on every frequency on both LW and MW. It
> overloads
>   > even worse than the Sangean CST-818 rx with local
> 1450 kHz
>   > Arabic station wipping out any signal on 550 in both
> the DX
>   > and LO mode. In LO it is just SLIGHTLY weaker...
>   > 
>   > I purchased it, because a lot of the interesting LW
>   > channels such as Tipaza-252 or Azilal-207 were
> hammered by
>   > local false mixing products between CINF-690,
> CFAV-1450 and
>   > CHUC-1450 on the Sangean CST-818, but with this rx
> things
>   > are only worse. While the 550 RECEIVER-GENERATED
> spur is
>   > poor-strenght using the Sangean CST-818 barefoot, it
> is
>   > SEMI-LOCAL-like with excellent strenght semi-Hi-Fi
> using the
>   > Grundig Eton G5 receiver... I wonder why CHUC the
> 1450
>   > Arabic station in Le Parc Industriel de
> Saint-Laurent
>   > generates spur on 550 in all the radios in our house
> (even
>   > on a broken Venturer clock radio) WITH THE EXCEPTION
> of the
>   > Sanyo MCD-S830 AM/FM Hi-Fi chain with tape copy and
> recorder
>   > which cleanly receives the weak WEVD Vermont
> groundwave and
>   > skywave from low-power domestic regionals, as well
> as
>   > occasionally YVKE-Venezuela without any 1450 local
>   > receiver-generated spur and even better had a TA het
> on 549.
>   > Is there a mathematical formula for a signal on 1450
> to
>   > appear on 550 due to overload concerns ?
> 
> 
> 
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THE INFORMATION IN THIS ARTICLE IS FREE. It may be copied, distributed
and/or modified under the conditions set down in the Design Science License
published by Michael Stutz at
http://www.gnu.org/licenses/dsl.html