Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dh04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 80D403800009C; Thu, 13 Jun 2013 22:06:57 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1UnJOP-0008E1-Gj for rs_out_1@blacksheep.org; Fri, 14 Jun 2013 03:05:33 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1UnJOO-0008Ds-Oh for rsgb_lf_group@blacksheep.org; Fri, 14 Jun 2013 03:05:32 +0100 Received: from blu0-omc1-s34.blu0.hotmail.com ([65.55.116.45]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1UnJOM-0002xb-97 for rsgb_lf_group@blacksheep.org; Fri, 14 Jun 2013 03:05:31 +0100 Received: from BLU404-EAS419 ([65.55.116.9]) by blu0-omc1-s34.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Thu, 13 Jun 2013 19:05:27 -0700 X-TMN: [dLkCoRLbmND99iTBJ6ntcE2YOZrfdUsO] X-Originating-Email: [hellozerohellozero@hotmail.com] Message-ID: References: <003d01ce682a$a597b0a0$6401a8c0@JAYDELL> From: Laurence KL1 X In-Reply-To: Date: Thu, 13 Jun 2013 18:05:24 -0800 To: "rsgb_lf_group@blacksheep.org" MIME-Version: 1.0 (1.0) X-OriginalArrivalTime: 14 Jun 2013 02:05:27.0306 (UTC) FILETIME=[A38ABEA0:01CE68A3] X-Spam-Score: 0.6 (/) 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: 200AYC10B. Warren - on the clickable links below it shows the filter. cheers On Jun 13, 2013, at 3:50 PM, "Warren Ziegler" wrote: > 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 [...] Content analysis details: (0.6 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [65.55.116.45 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (hellozerohellozero[at]hotmail.com) -0.0 SPF_PASS SPF: sender matches SPF record -0.4 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message 1.0 FREEMAIL_REPLY From and body contain different freemails X-Scan-Signature: 1273381c241b4bc851b7e848e0897dc9 Content-Type: multipart/alternative; boundary="Apple-Mail-F4AD03B9-4173-4737-A7E2-C68108D7C261" Content-Transfer-Encoding: 7bit Subject: Re: LF: Re: Whole house EMC/I filtering - Corcom 200 A 3 phase Y 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=FORGED_HOTMAIL_RCVD, HTML_MESSAGE,TO_ADDRESS_EQ_REAL 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-DMARC: mtain-dh04.r1000.mx.aol.com ; domain : hotmail.com ; policy : none ; result : F x-aol-sid: 3039ac1d411851ba7ac04b7d X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --Apple-Mail-F4AD03B9-4173-4737-A7E2-C68108D7C261 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable 200AYC10B. Warren - on the clickable links below it shows the filter. cheers= On Jun 13, 2013, at 3:50 PM, "Warren Ziegler" wrote: > Laurence, > What is the model number of the Corcom filters you have? > Tnx & 73 Warren >=20 >=20 >=20 > On Thu, Jun 13, 2013 at 6:55 PM, Laurence KL1 X wrote: >> Jay/Stefan thanks for the comments -=20 >> =20 >> 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 dire= ct to one breaker panel for the non essentials and another via a generator t= ransfer 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 bu= t it was causing LF MF QRM and I managed to persuade the electrical Co to r= emove it and now they still read the meter visually >> =20 >> I didnt have the energy or the resources to recable back from either two l= ocations 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 fi= lter and short run back up the ( 2 1/4)conduit and out using the existing (n= on connectorized) cabling. Its not ideal I know and there will be some capac= itive and small inductive affects but I was aiming at LF and a band either s= ide of it I dont think its going to be large. >> =20 >> Youll also notice the filters are designed for 3 phase Y and not 2 phas= e AND my neutral is bonded to Earth in the breaker box too. I did pony up fo= r a thicker and less inductance earth connection to the spaced rods located b= eneath the boxes to improve the "RF" coupling/shunting to Earth at this poin= t.=20 >> =20 >> http://www.kl7uk.com/Corcom.jpg >> =20 >> Linked are the specs for the Corcom 200A filter - they are still availabl= e 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 o= f the filters and the UL Electrical enclosure is something like 85 pounds an= d is supported on the frame which is bolted to the concrete beneath. All har= dware was stainless - and lots of Petronox style gray stuff for the Alu conn= ections >> =20 >> http://www.kl7uk.com/Corcom2.jpg >> =20 >> =20 >> In addition to this, the house has further single and 2 phase Corcoms on t= he 20A breakered outlets to the radio room -=20 >> =20 >> I think if I was/were in a concreted blocked, rebar earth facility it wou= ld now be darned internally quiet but as I live in a ranch style open to eve= rything 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 h= ow much, but at least Ive added a high impedance point :-) I can see an imp= rovement in VLF by some 5dB to date from 5kHz upwards and Im working on MF a= nd LF but we appear to have a large thunderhead nearby which is making measu= rement difficult. >> =20 >> Regards >> Laurence KL 1 X=20 >> =20 >> 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 >>=20 >> Laurence >> =20 >> Would like more info on the filters as well as performance. >> =20 >> Guess the best arrangement would be to go directly from the meter into a s= eparate box that houses a 'mains' breaker and the filters ... then out of th= at box into the existing 'mains' and 'sub' breaker box ... with no sharing o= f conduit. What config are those filters? Have often eyed the large isolatio= n transformers for sale on ebay for potential use as a ' whole house' filter= . Would be interesting to compare the effectiveness of various types.=20 >=20 >=20 >=20 > --=20 > 73 Warren K2ORS > WD2XGJ=20 > WD2XSH/23 > WE2XEB/2 > WE2XGR/1 >=20 > =20 --Apple-Mail-F4AD03B9-4173-4737-A7E2-C68108D7C261 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: 7bit
200AYC10B. Warren - on the clickable links below it shows the filter. cheers

On Jun 13, 2013, at 3:50 PM, "Warren Ziegler" <wd2xgj@gmail.com> wrote:

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

 
--Apple-Mail-F4AD03B9-4173-4737-A7E2-C68108D7C261--