Return-Path: Received: from rly-de11.mx.aol.com (rly-de11.mail.aol.com [172.19.170.147]) by air-de02.mail.aol.com (v121_r4.4) with ESMTP id MAILINDE024-51249130f4f1d6; Thu, 06 Nov 2008 10:38:00 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-de11.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINDE113-51249130f4f1d6; Thu, 06 Nov 2008 10:37:52 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Ky6vL-0004KX-Io for rs_out_1@blacksheep.org; Thu, 06 Nov 2008 15:37:31 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Ky6vK-0004KO-MY for rsgb_lf_group@blacksheep.org; Thu, 06 Nov 2008 15:37:30 +0000 Received: from web28105.mail.ukl.yahoo.com ([217.146.182.125]) by relay3.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1Ky6vK-0004G2-G0 for rsgb_lf_group@blacksheep.org; Thu, 06 Nov 2008 15:37:30 +0000 Received: (qmail 51176 invoked by uid 60001); 6 Nov 2008 15:37:24 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.co.uk; h=X-YMail-OSG:Received:X-Mailer:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type:Message-ID; b=b8AtGiME5Jpsc3FP05ajUDDERzWLe4IDJtfy1n8guCNprwGu8cLZZrG1omlyKfp0EamLqzItxXB/veowIeHMC2WiW6w4Bo7i6Mig9zq1lcmF/3qURsplZFFmzLnPzQ/dLXqMq0Xc5bRcBqzxRgvkK6hPRaVYh8pLGgtow/V2AEQ=; X-YMail-OSG: tXFeb_QVM1kS0DVIMbUa7dOcCyoeJ6Q9dKNbjTBGIQQIgfIWmontOfHpLB66tYlVjQAXR3.awBOl3AJHEyMvqUdNPY_eTnqN2Zxo4_ipbKWb55KAeU31PzNf75jNf5L2CSiM6gbBMm98_.ZHG6dzCgF404JrYLVQSZNBB_FbmsDNrec- Received: from [86.142.153.143] by web28105.mail.ukl.yahoo.com via HTTP; Thu, 06 Nov 2008 15:37:24 GMT X-Mailer: YahooMailWebService/0.7.260.1 Date: Thu, 6 Nov 2008 15:37:24 +0000 (GMT) From: M0FMT To: rsgb_lf_group@blacksheep.org In-Reply-To: <20081103155036.cr2fpbsbr3kscsgs@webmail4.kuleuven.be> MIME-Version: 1.0 Message-ID: <791159.50772.qm@web28105.mail.ukl.yahoo.com> DomainKey-Status: good (testing) Subject: Re: LF: 500 noise - Rik: Yep its in the house! Content-Type: multipart/alternative; boundary="0-777787760-1225985844=:50772" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-AOL-IP: 193.82.116.20 --0-777787760-1225985844=:50772 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi Rik and LF =C2=A0 Thanks for pushing me into doing some thing about my 500kc/s noise. You woul= d think a bloke my age would have got to grips with this earlier. You were d= ead right The noise was coming from a DVD player that was on the face of it=20= switched off. Using a small MW radio proved otherwise. I have to pull the pl= ug out of the wall to shut it up. Surgery with a hammer is planned next!!! =C2=A0 Oh yes I am now hearing things again hope to hear you and have that QSO. =C2=A0 73 petefmt =C2=A0 --- On Mon, 3/11/08, Rik Strobbe wrote: From: Rik Strobbe Subject: Re: LF: 500 To: rsgb_lf_group@blacksheep.org Date: Monday, 3 November, 2008, 2:50 PM Hello Pete, I found out that 90% of the noise on 500kHz came from inside my own house. A lot of electronics is running of switched PSU's and you need just one of these oscillating near 500 kHz to get a lot of noise. I took a small portable AM radio (tuned to the lowest end of the medium wave band =3D abt. 520kHz) to locate the noise sources. Use the ferrite antenna t= o take null bearings. After replacing a couple of 12V switched PSU's by good old linear ones noise was down by 10's of dB. Another source of noise are energy saving lamps. You can locate them the sam= e way. 73, Rik ON7YD - OR7T Quoting M0FMT : > Hi Mal and LF > =C2=A0 > I would like to be on for two way QSO's however its the old story=20 here I have a high noise level and am not hearing any thing other than loca= l signals. > =C2=A0 > I was on the Suffolk coast for this years holiday. I only had a Kenwood TS50 and a 40 metre dipole up. I was hearing just about every thing=C2=A0on 500kc/s. Its not as though I live in a high density area apart from a neigh= bour either side the nearest other is about 1/4mile away but I do have 11kV at t= he bottom of the garden which to date has not been a problem. So I suspect an insulator but the noise is not general it is not affecting HF at the moment= . > =C2=A0 > I have an 8 foot Octagon tuneable and rotatable loop that I am playing with at the moment=C2=A0but so far no real improvement. > =C2=A0 > Sorry for the tale of woe but we are working on the problem. > =C2=A0 > Chris XIZ has suggested X band so I may try that shortly. > =C2=A0 > 73 petefmt > =C2=A0 >=20 > --- On Mon, 3/11/08, mal hamilton wrote: >=20 > From: mal hamilton > Subject: Re: LF: 500 > To: rsgb_lf_group@blacksheep.org > Date: Monday, 3 November, 2008, 11:32 AM >=20 >=20 > =EF=BB=BF >=20 >=20 > Peter > Listening on 500 recently it looks like the GAS has gone out. > Mal/g3kev > =C2=A0 >=20 > ----- Original Message ----- > From: M0FMT > To: rsgb_lf_group@blacksheep.org > Sent: Monday, November 03, 2008 11:10 AM > Subject: Re: LF: 500 >=20 >=20 >=20 >=20 >=20 >=20 > =C2=A0 > =C2=A0 > Nice one Warren .... :)) > =C2=A0 > Sorry Mal. > =C2=A0 > 73 Petefmt >=20 > --- On Sat, 1/11/08, Warren Ziegler wrote: >=20 > From: Warren Ziegler > Subject: Re: LF: 500 > To: rsgb_lf_group@blacksheep.org > Date: Saturday, 1 November, 2008, 7:24 PM >=20 > Mal, > You have a gas powered TX? > 73 K2ORS >=20 >=20 > On Sat, Nov 1, 2008 at 2:55 PM, mal hamilton > wrote: >> Hi >> Is there anyone listening on 500 ? or am I just burning up gas !! now CQ > for >> a qso on 502.6 >> de g3kev >>=20 >>=20 >=20 >=20 >=20 > -- > 73 Warren K2ORS > WD2XGJ > WD2XSH/23 > WE2XEB/2 > WE2XGR/1 >=20 >=20 >=20 >=20 >=20 >=20 >=20 > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.175 / Virus Database: 270.8.5/1763 - Release Date: 11/2/2008 7:08 PM >=20 >=20 >=20 >=20 Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm =20 --0-777787760-1225985844=:50772 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Hi Rik and LF
 
Thanks for pushing me into doing some thing about my 500kc/s noise. You= would think a bloke my age would have got to grips with this earlier. You w= ere dead right The noise was coming from a DVD player that was on the face o= f it switched off. Using a small MW radio proved otherwise. I have to pull t= he plug out of the wall to shut it up. Surgery with a hammer is planned next= !!!
 
Oh yes I am now hearing things again hope to hear you and have that QSO= .
 
73 petefmt
 


--- On Mon, 3/11/08, Rik Strobbe <Rik.Strobbe@fys.kule= uven.be> wrote:
From: Rik Strobbe <Rik.Strobbe@fys.kuleuven.be>Subject: Re: LF: 500
To: rsgb_lf_group@blacksheep.org
Date: Monday,=20= 3 November, 2008, 2:50 PM

Hello Pete,

I found out that 90% of the noise on 500kHz came from inside my own house.
A lot of electronics is running of switched PSU's and you need just one of
these oscillating near 500 kHz to get a lot of noise.
I took a small portable AM radio (tuned to the lowest end of the medium wave
band =3D abt. 520kHz) to locate the noise sources. Use the ferrite antenna t=
o take
null bearings.
After replacing a couple of 12V switched PSU's by good old linear ones
noise was down by 10's of dB.
Another source of noise are energy saving lamps. You can locate them the sam=
e
way.

73, Rik  ON7YD - OR7T


Quoting M0FMT <m0fmt@yahoo.co.uk>:

> Hi Mal and LF
>  
> I would like to be on for two way QSO's however its the old story=20
here I have a high noise level and am not hearing any thing other  than loca=
l
signals.
>  
> I was on the Suffolk coast for this years holiday. I only had a  Kenwoo=
d
TS50 and a 40 metre dipole up. I was hearing just about  every thing on
500kc/s. Its not as though I live in a high density  area apart from a neigh=
bour
either side the nearest other is about  1/4mile away but I do have 11kV at t=
he
bottom of the garden which to  date has not been a problem. So I suspect an
insulator but the noise  is not general it is not affecting HF at the moment=
.
>  
> I have an 8 foot Octagon tuneable and rotatable loop that I am  playing
with at the moment but so far no real improvement.
>  
> Sorry for the tale of woe but we are working on the problem.
>  
> Chris XIZ has suggested X band so I may try that shortly.
>  
> 73 petefmt
>  
>=20
> --- On Mon, 3/11/08, mal hamilton <g3kevmal@talktalk.net> wrote:
>=20
> From: mal hamilton <g3kevmal@talktalk.net>
> Subject: Re: LF: 500
> To: rsgb_lf_group@blacksheep.org
> Date: Monday, 3 November, 2008, 11:32 AM
>=20
>=20
> =EF=BB=BF
>=20
>=20
> Peter
> Listening on 500 recently it looks like the GAS has gone out.
> Mal/g3kev
>  
>=20
> ----- Original Message -----
> From: M0FMT
> To: rsgb_lf_group@blacksheep.org
> Sent: Monday, November 03, 2008 11:10 AM
> Subject: Re: LF: 500
>=20
>=20
>=20
>=20
>=20
>=20
>  
>  
> Nice one Warren .... :))
>  
> Sorry Mal.
>  
> 73 Petefmt
>=20
> --- On Sat, 1/11/08, Warren Ziegler <wd2xgj@gmail.com> wrote:
>=20
> From: Warren Ziegler <wd2xgj@gmail.com>
> Subject: Re: LF: 500
> To: rsgb_lf_group@blacksheep.org
> Date: Saturday, 1 November, 2008, 7:24 PM
>=20
> Mal,
>      You have a gas powered TX?
> 73 K2ORS
>=20
>=20
> On Sat, Nov 1, 2008 at 2:55 PM, mal hamilton <g3kevmal@talktalk.net&=
gt;
> wrote:
>> Hi
>> Is there anyone listening on 500 ? or am I just burning up gas !! n=
ow
CQ
> for
>> a qso on 502.6
>> de g3kev
>>=20
>>=20
>=20
>=20
>=20
> --
> 73 Warren K2ORS
>                 WD2XGJ
>                 WD2XSH/23
>                 WE2XEB/2
>                 WE2XGR/1
>=20
>=20
>=20
>=20
>=20
>=20
>=20
> No virus found in this incoming message.
> Checked by AVG - http://www.avg.com
> Version: 8.0.175 / Virus Database: 270.8.5/1763 - Release Date:  11/2/2=
008
7:08 PM
>=20
>=20
>=20
>=20



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