Return-Path: X-Spam-DCC: paranoid 1170; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-0.1 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_HOTMAIL_RCVD,HTML_MESSAGE autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id t2UMPEvN007020 for ; Tue, 31 Mar 2015 00:25:14 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Yci4z-0007u1-Jy for rs_out_1@blacksheep.org; Mon, 30 Mar 2015 23:22:45 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Yci4z-0007ts-9W for rsgb_lf_group@blacksheep.org; Mon, 30 Mar 2015 23:22:45 +0100 Received: from blu004-omc1s32.hotmail.com ([65.55.116.43]) by relay1.thorcom.net with esmtps (TLSv1.2:AES256-SHA256:256) (Exim 4.85) (envelope-from ) id 1Yci4x-00069d-BL for rsgb_lf_group@blacksheep.org; Mon, 30 Mar 2015 23:22:44 +0100 Received: from BLU177-W28 ([65.55.116.9]) by BLU004-OMC1S32.hotmail.com over TLS secured channel with Microsoft SMTPSVC(7.5.7601.22751); Mon, 30 Mar 2015 15:22:41 -0700 X-TMN: [6pvKVUsPtTXG+KyJcdzxMKCYM/v8rt24] X-Originating-Email: [hellozerohellozero@hotmail.com] Message-ID: From: Laurence KL7 L To: "rsgb_lf_group@blacksheep.org" Date: Mon, 30 Mar 2015 14:22:41 -0800 Importance: Normal In-Reply-To: <5519C78C.5090509@charter.net> References: <4698D0522AFD45F896A41F2D16A2D831@AGB> <19EEF7A6DD30462FA6ACC0F015DC9F52@AGB> <5509E3D5.90900@gmail.com> <55102D0C.8040405@gmail.com>,<55148587.3090101@gmail.com> <7E7DFBB4D102A04DB5ADC88D66628A4A234F1A25@ICTS-S-MBX1.luna.kuleuven.be> <520562D5C7694FF69C20E595E00B793D@F6CNIToshiba>,<55155AD6.1090102@gmail.com> <7E7DFBB4D102A04DB5ADC88D66628A4A234F1AFC@ICTS-S-MBX1.luna.kuleuven.be>,<551560D0.1040306@gmail.com> <7E7DFBB4D102A04DB5ADC88D66628A4A234F1B3A@ICTS-S-MBX1.luna.kuleuven.be> <551734A0.3090005@gmail.com> <5517ED59.10203@charter.net> <60ED0A877BFF4C1D852D99B6F81A5820@White>,<5519C78C.5090509@charter.net> MIME-Version: 1.0 X-OriginalArrivalTime: 30 Mar 2015 22:22:41.0828 (UTC) FILETIME=[09AAE640:01D06B38] X-Scan-Signature: b08ad821341ca291e1fd930f7b9292d3 Content-Type: multipart/alternative; boundary="_09858889-9e95-4639-a579-ea9699af52fe_" Subject: LF: Dot and Dashes - PLC noise? 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-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 2827 --_09858889-9e95-4639-a579-ea9699af52fe_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable We get these here too - most of the dots and dashes appear at repetitive ti= mes every day - related to (mostly!) power meter "Turtles" in peoples meter= s which inject signals back to the local substation across the 110/240/7.5K= w transformers - it used to be horrid at 137kHZ - and I managed to get the= electrical utility to revert back a manual reading meter at home- and the= n installed a whole house RF filter ( 2 x 220A) on incoming supply which he= lped a little more - =20 I still get the interference but its a lot better=2C that and choking the= incoming Cable tv cable outside in the roadside podium with a large "J" fe= rrite with 15T - that helped clear up a load of VLF noise too - Cant fix t= he fenceless dog interference yet... :-( =20 Unless its Aliens again.... =20 Laurence KL7L We2XPQ etc =20 =20 > Date: Mon=2C 30 Mar 2015 18:00:44 -0400 > From: w1tag@charter.net > To: rsgb_lf_group@blacksheep.org > Subject: Re: LF: LF tonite >=20 > Markus=2C >=20 > > Wonder what the little dash below Stefan's "F" was... possibly local QR= M > > from some MFSK PLC system? We sometimes seem to find a number of > > unexplained scattered dashes on North American QRSS spectrograms. >=20 > I watched the entire band for a while this afternoon=2C and homed in on=20 > the 136.552 kHz frequency range below=2C after seeing some "dash"=20 > activity. Interesting. >=20 > John=2C W1TAG = --_09858889-9e95-4639-a579-ea9699af52fe_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
We get these here too - most of = the dots and dashes appear at repetitive times every day - related to (most= ly!) =3Bpower meter "Turtles" in peoples meters which inject signals ba= ck to the local substation across the 110/240/7.5Kw transformers =3B- i= t used to be horrid at 137kHZ  =3B- and I managed to get the electrical= utility to revert back a manual reading meter at home-  =3Band then in= stalled a whole house =3BRF filter ( 2 x 220A) on incoming supply which= helped a little more -
 =3B
 =3B I still get the =3Binte= rference but its a lot better=2C that and choking the incoming Cable tv cab= le outside =3Bin the roadside podium with a large "J" ferrite with 15T = - that helped clear up a load of VLF noise too - =3B Cant fix the fence= less dog interference yet... :-(
 =3B
Unless its Aliens again....=
 =3B
Laurence KL7L We2XPQ etc
 =3B

 =3B
>=3B Date: Mon=2C 30 Mar 2015 18:00:44 -0400
>=3B From: w1tag@char= ter.net
>=3B To: rsgb_lf_group@blacksheep.org
>=3B Subject: Re: L= F: LF tonite
>=3B
>=3B Markus=2C
>=3B
>=3B >=3B Won= der what the little dash below Stefan's "F" was... possibly local QRM
&g= t=3B >=3B from some MFSK PLC system? We sometimes seem to find a number o= f
>=3B >=3B unexplained scattered dashes on North American QRSS spec= trograms.
>=3B
>=3B I watched the entire band for a while this a= fternoon=2C and homed in on
>=3B the 136.552 kHz frequency range belo= w=2C after seeing some "dash"
>=3B activity. Interesting.
>=3B <= br>>=3B John=2C W1TAG
= --_09858889-9e95-4639-a579-ea9699af52fe_--