Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-db04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 9D12D380000A3; Thu, 13 Jun 2013 19:48:56 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1UnHF4-0007wA-OE for rs_out_1@blacksheep.org; Fri, 14 Jun 2013 00:47:46 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1UnHF3-0007w1-QF for rsgb_lf_group@blacksheep.org; Fri, 14 Jun 2013 00:47:45 +0100 Received: from mail-ob0-f174.google.com ([209.85.214.174]) by relay1.thorcom.net with esmtps (TLSv1:RC4-SHA:128) (Exim 4.77) (envelope-from ) id 1UnHF1-0002kJ-AI for rsgb_lf_group@blacksheep.org; Fri, 14 Jun 2013 00:47:44 +0100 Received: by mail-ob0-f174.google.com with SMTP id wd20so15614318obb.19 for ; Thu, 13 Jun 2013 16:47:40 -0700 (PDT) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=3878otX7pQLMeBwdnZtElR2KZehZZgY4huc+fiDWmj0=; b=visgr0qTaNDHo7mlu7gqmG9Hl8rVYco5nqtvfTiK66WHaipi8BY3mH2Q500VSYwtHp m6P5nYx6mTO5XMgsLMeUOPFBNg/ln9xM7nugTS+GCnqlolAC52Pr4V+YY0W/8B7x6jQZ xRWcAJBwZtfZ1ELu7otRIz+K8B7iPT21+fuUSk2lqGSKOsbXN1ujDZovLwyoasErm9OX cb7isVpR/+MfTEen990yQcUtLtgUZjaGi5r3DBWC7ug3dp1Ypfhefrl2NGwk/WuodGuP W9yf6EmTBVzAmNWwB1xOSTp3hkpbfGQ/8vA2Kat9W9QRsep0cYJlzBGFZkgDwkr//Pjo do7A== MIME-Version: 1.0 X-Received: by 10.182.97.194 with SMTP id ec2mr2520122obb.7.1371167260789; Thu, 13 Jun 2013 16:47:40 -0700 (PDT) Received: by 10.60.54.200 with HTTP; Thu, 13 Jun 2013 16:47:40 -0700 (PDT) In-Reply-To: References: <003d01ce682a$a597b0a0$6401a8c0@JAYDELL> Date: Thu, 13 Jun 2013 19:47:40 -0400 Message-ID: From: Warren Ziegler To: rsgb_lf_group X-Spam-Score: 0.3 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Laurence, What is the model number of the Corcom filters you have? Tnx & 73 Warren On Thu, Jun 13, 2013 at 6:55 PM, Laurence KL1 X < wrote: > Jay/Stefan thanks for the comments - > > Yes - I had to really be careful with Code on this - the main > meter feeds directly into the 2 x 2phase 100A breakers and went thru the > wall, one direct to one breaker panel for the non essentials and another > via a generator transfer switch to the right of all this lot then onto the > Eeesntial services panel in the garage. The meter used to have a "Turtle" > RF pulsing device but it was causing LF MF QRM and I managed to persuade > the electrical Co to remove it and now they still read the meter visually > > I didnt have the energy or the resources to recable back from either two > locations direct obviating the need to come into the same breaker box - so > as you look at the Gray filter box the output cabling is at the top of the > filter and short run back up the ( 2 1/4)conduit and out using the existing > (non connectorized) cabling. Its not ideal I know and there will be some > capacitive and small inductive affects but I was aiming at LF and a band > either side of it I dont think its going to be large. > > Youll also notice the filters are designed for 3 phase Y and not 2 phase > AND my neutral is bonded to Earth in the breaker box too. I did pony up for > a thicker and less inductance earth connection to the spaced rods located > beneath the boxes to improve the "RF" coupling/shunting to Earth at this > point. > > http://www.kl7uk.com/Corcom.jpg > > Linked are the specs for the Corcom 200A filter - they are still available > for 700 USD each or Eee Bay (yikes), but I offered him 100 USD and he took > it. Just had to add the pack mule costs to get them to Alaska. The weight > of the filters and the UL Electrical enclosure is something like 85 pounds > and is supported on the frame which is bolted to the concrete beneath. All > hardware was stainless - and lots of Petronox style gray stuff for the Alu > connections > > http://www.kl7uk.com/Corcom2.jpg > > > In addition to this, the house has further single and 2 phase Corcoms on > the 20A breakered outlets to [...] Content analysis details: (0.3 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.214.174 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (wd2xgj[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid 1.0 FREEMAIL_REPLY From and body contain different freemails X-Scan-Signature: e43fe7093e9b3ae0dc118eec4efba8a5 Subject: Re: LF: Re: Whole house EMC/I filtering - Corcom 200 A 3 phase Y Content-Type: multipart/alternative; boundary=047d7b2e496281d57904df11c174 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-global-disposition: G X-AOL-SCOLL-AUTHENTICATION: mtain-db04.r1000.mx.aol.com ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d405851ba5a674c9c X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --047d7b2e496281d57904df11c174 Content-Type: text/plain; charset=ISO-8859-1 Laurence, What is the model number of the Corcom filters you have? Tnx & 73 Warren On Thu, Jun 13, 2013 at 6:55 PM, Laurence KL1 X < hellozerohellozero@hotmail.com> wrote: > Jay/Stefan thanks for the comments - > > Yes - I had to really be careful with Code on this - the main > meter feeds directly into the 2 x 2phase 100A breakers and went thru the > wall, one direct to one breaker panel for the non essentials and another > via a generator transfer switch to the right of all this lot then onto the > Eeesntial services panel in the garage. The meter used to have a "Turtle" > RF pulsing device but it was causing LF MF QRM and I managed to persuade > the electrical Co to remove it and now they still read the meter visually > > I didnt have the energy or the resources to recable back from either two > locations direct obviating the need to come into the same breaker box - so > as you look at the Gray filter box the output cabling is at the top of the > filter and short run back up the ( 2 1/4)conduit and out using the existing > (non connectorized) cabling. Its not ideal I know and there will be some > capacitive and small inductive affects but I was aiming at LF and a band > either side of it I dont think its going to be large. > > Youll also notice the filters are designed for 3 phase Y and not 2 phase > AND my neutral is bonded to Earth in the breaker box too. I did pony up for > a thicker and less inductance earth connection to the spaced rods located > beneath the boxes to improve the "RF" coupling/shunting to Earth at this > point. > > http://www.kl7uk.com/Corcom.jpg > > Linked are the specs for the Corcom 200A filter - they are still available > for 700 USD each or Eee Bay (yikes), but I offered him 100 USD and he took > it. Just had to add the pack mule costs to get them to Alaska. The weight > of the filters and the UL Electrical enclosure is something like 85 pounds > and is supported on the frame which is bolted to the concrete beneath. All > hardware was stainless - and lots of Petronox style gray stuff for the Alu > connections > > http://www.kl7uk.com/Corcom2.jpg > > > In addition to this, the house has further single and 2 phase Corcoms on > the 20A breakered outlets to the radio room - > > I think if I was/were in a concreted blocked, rebar earth facility it > would now be darned internally quiet but as I live in a ranch style open > to everything RF wise Im still getting some QRM from the house and overhead > supply some 150m away - but conductive noise (which Im assuming was coming > up the "mains supply") and being reradiated has been attenuated - just dont > ask me how much, but at least Ive added a high impedance point :-) I can > see an improvement in VLF by some 5dB to date from 5kHz upwards and Im > working on MF and LF but we appear to have a large thunderhead nearby which > is making measurement difficult. > > Regards > Laurence KL 1 X > > ------------------------------ > From: jrusgrove@comcast.net > To: rsgb_lf_group@blacksheep.org > Date: Thu, 13 Jun 2013 07:39:21 -0400 > Subject: LF: Re: Whole house EMC/I filtering > > Laurence > > Would like more info on the filters as well as performance. > > Guess the best arrangement would be to go directly from the meter into a > separate box that houses a 'mains' breaker and the filters ... then out of > that box into the existing 'mains' and 'sub' breaker box ... with no > sharing of conduit. What config are those filters? Have often eyed the > large isolation transformers for sale on ebay for potential use as a ' > whole house' filter. Would be interesting to compare the effectiveness of > various types. > > -- 73 Warren K2ORS WD2XGJ WD2XSH/23 WE2XEB/2 WE2XGR/1 --047d7b2e496281d57904df11c174 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Laurence,
=A0 =A0What is the model number of the= Corcom filters you have?
Tnx & 73 Warren



On Thu, Jun 13, 2013 at 6:55 PM, Laurence KL1 X <= ;helloz= erohellozero@hotmail.com> wrote:
Jay/Stefan thanks=A0for the comments -
=A0
Yes= - I had to really be careful with Code on this - the=A0main meter=A0feeds= =A0directly into the 2 x 2phase 100A breakers and went thru the wall, one d= irect to one=A0breaker panel for the non essentials and another via a gener= ator=A0transfer switch to the right of all this lot then onto the Eeesntial= =A0services panel in the garage. The meter used to have a "Turtle"= ; RF pulsing device but it was causing=A0 LF=A0MF QRM and I managed to pers= uade the electrical Co to remove it and now they still read the meter visua= lly
=A0
I didnt have the energy or the resources to recable back from either= two locations=A0direct=A0obviating the need to come into the=A0same breake= r=A0box - so as you look at the=A0 Gray filter box the output cabling is at= the top of the filter and short run back up the ( 2 1/4)conduit=A0and=A0ou= t using the existing (non connectorized) cabling. Its not ideal I know and = there will be some capacitive and small inductive affects but I was aiming = at LF and a band either side of it I dont think its going to be large.
=A0
=A0Youll also notice the filters are designed for 3 phase=A0 Y and n= ot 2 phase AND my neutral is bonded to Earth in the breaker box too. I did = pony up for a thicker and less inductance earth connection to the spaced ro= ds located beneath the boxes to improve the "RF" coupling/shuntin= g to Earth at this point.
=A0
http:/= /www.kl7uk.com/Corcom.jpg
=A0
Linked are the specs=A0for the Corc= om 200A filter=A0- they are still=A0available for 700 USD=A0each or Eee Bay= (yikes), but I offered him=A0100 USD and he took it.=A0Just had to add the= pack mule costs to get them to Alaska.=A0 The weight of the filters and th= e UL Electrical enclosure is something like 85 pounds and is supported on t= he frame which is=A0bolted to the concrete beneath. All hardware was stainl= ess - and lots of Petronox style gray stuff for the Alu connections
=A0
http:= //www.kl7uk.com/Corcom2.jpg
=A0
=A0
In addition to this, the h= ouse has further=A0single and 2 phase=A0Corcoms on the=A020A breakered outl= ets to the radio room -
=A0
I think if I was/were in a concreted blocked, rebar earth facility i= t would now be darned internally quiet but as I live in a ranch style open = to=A0everything RF wise Im still getting some QRM from the house and overhe= ad supply=A0some 150m away - but conductive noise (which Im assuming was=A0= coming up the "mains=A0supply") and being reradiated=A0has been a= ttenuated - just dont ask me how much, but at least Ive added a high impeda= nce point :-)=A0 I can see an improvement in VLF by some 5dB to date from 5= kHz upwards and Im working on MF and LF but we appear to have a large thund= erhead nearby which is making measurement difficult.
=A0
Regards
Laurence KL 1 X=A0
=A0
From: jrusgrove@comcast.net
= To: rsgb_= lf_group@blacksheep.org
Date: Thu, 13 Jun 2013 07:39:21 -0400
Subject: LF: Re: Whole house EMC/I= filtering

Laurence
=A0
Would like more info on the filters as well as=20 performance.
=A0
Guess the best arrangement would be to go directl= y=20 from the meter into a separate box that houses a 'mains' breaker=A0= and the=20 filters ... then out of that box into the existing=A0'mains' and &#= 39;sub'=20 breaker box=A0... with no sharing of conduit.=A0What config are=A0those=20 filters? Have often eyed the large isolation transformers for sale on ebay = for=20 potential use as a=A0' whole house' filter. Would be interesting to= compare=20 the effectiveness of various types.=A0
=A0



--
73 Warren K2= ORS
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WD2XGJ
=A0 =A0 =A0 =A0 =A0 =A0 = =A0 =A0 WD2XSH/23
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WE2XEB/2
=A0 =A0 = =A0 =A0 =A0 =A0 =A0 =A0 WE2XGR/1

=A0
--047d7b2e496281d57904df11c174--