Return-Path: Received: from mtain-db02.r1000.mx.aol.com (mtain-db02.r1000.mx.aol.com [172.29.64.86]) by air-mc05.mail.aol.com (v129.4) with ESMTP id MAILINMC053-a9694ce89cd12b7; Sat, 20 Nov 2010 23:15:13 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-db02.r1000.mx.aol.com (Internet Inbound) with ESMTP id E932C380000AD; Sat, 20 Nov 2010 23:15:11 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PK1If-00041J-S7 for rs_out_1@blacksheep.org; Sun, 21 Nov 2010 04:13:13 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PK1Id-00041A-OS for rsgb_lf_group@blacksheep.org; Sun, 21 Nov 2010 04:13:11 +0000 Received: from blu0-omc1-s28.blu0.hotmail.com ([65.55.116.39]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PK1Ic-00057A-Cl for rsgb_lf_group@blacksheep.org; Sun, 21 Nov 2010 04:13:11 +0000 Received: from BLU146-W8 ([65.55.116.8]) by blu0-omc1-s28.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Sat, 20 Nov 2010 20:13:03 -0800 Message-ID: X-Originating-IP: [74.7.119.2] From: Laurence KL7UK To: Date: Sat, 20 Nov 2010 19:13:02 -0900 Importance: Normal In-Reply-To: <1290270401.1475.15.camel@gerhard-desktop> References: <1290270401.1475.15.camel@gerhard-desktop> MIME-Version: 1.0 X-OriginalArrivalTime: 21 Nov 2010 04:13:03.0179 (UTC) FILETIME=[642641B0:01CB8932] X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Content-Type: multipart/alternative; boundary="_c24f50c8-8fc1-49f0-a09e-d5db58a11393_" Subject: RE: VLF: Funny things! 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 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-sid: 3039ac1d40564ce89ccf59ed X-AOL-IP: 195.171.43.25 X-Mailer: Unknown (No Version) --_c24f50c8-8fc1-49f0-a09e-d5db58a11393_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I was fortunate to be working in Antarctica for a number of years and vist= ed Siple station just after they reopened the base in 1978 (closed for a= prior season or so due to a Hepatitis outbreak... who says there are no= germs in Antarctica!) =20 I was having breakfast there having just flown in as co-pilot (point it th= at way Laurence....) from our refuelling stop at 80 degS after dropping= off some glaciologists on the Rutford Ice stream near the Vinson Massif =20 The new replace VLF Jupiter transmitter was running a series of stepped 2-= 4Khz (im guessing here but my hearing was a lot better then) tones every= few seconds. What I vividly remember was the cutlery and anything with a= metal overlap vibrating at the Tx freq...pretty interesting really. The= cook said "you get used to it but the $^%$# tones are annoying given the= repitition...." (dah de dahhh da de dahhh etc) =20 Given the TX had an RF power of (stated) 150Kw perhaps its not surprising= everything was being excited. Im sure it wasnt running at that power tha= t day as the lights werent dimming that much - Nice breakfast in any case= chomping on my psuedo real bacon and canned powered eggs.=20 =20 http://www-star.stanford.edu/~vlf/Antarctica/Siple/index.htm =20 Laurence KL7UK in Dallas this evening... =20 > From: gerhard.hickl@aon.at > To: rsgb_lf_group@blacksheep.org > Date: Sat, 20 Nov 2010 17:26:41 +0100 > Subject: VLF: Funny things! >=20 > Hello group ! >=20 > Among others, I'm experimenting on VLF. >=20 > Today, I applied about 70W on my 16m high Marconi. The loading coil is= a > Variometer (460-580mH) and the capacitive load of the antenna is about > 600pf. The antenna current was measured at about 300mA. >=20 > 1. The coil is whistling but also the wires running across my property > do. I could hear the high tone even in abt. 70m away from my place. This > could cause problems with my neighbours, I guess. >=20 > 2. You =3D --_c24f50c8-8fc1-49f0-a09e-d5db58a11393_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I was fortunate to be working in Antarctica for a number of years&nbs= p;and visted Siple station just after they reopened the base in 1978= (closed for a prior season or so due to a Hepatitis outbreak... who= says there are no germs in Antarctica!)
 
I was having breakfast there having just flown in as co-pilot (point&= nbsp;it that way Laurence....)  from our refuelling stop at 80= degS after dropping off some glaciologists on the Rutford= Ice stream near the Vinson Massif
 
The new replace VLF Jupiter transmitter was running a series of stepp= ed 2-4Khz (im guessing here  but my hearing was a lot better then) to= nes every few seconds. What I vividly remember was the cutlery and an= ything with a metal overlap vibrating at the Tx freq...pretty interes= ting really. The cook said "you get used to it but the $^%$# tones are ann= oying given the repitition...." (dah de dahhh  da de dahhh etc)
 
Given the TX had an RF power of (stated) 150Kw perhaps its not surprising= everything was being excited. Im  sure it wasnt running at that= power that day as the lights werent dimming that much - Nice breakfast in= any case chomping on my psuedo real bacon and canned powered eggs.=
 
h= ttp://www-star.stanford.edu/~vlf/Antarctica/Siple/index.htm
 
Laurence KL7UK in Dallas this evening...
 
> From: gerhard.hickl@aon.at
> To: rsgb_lf_group@blacksheep.org> Date: Sat, 20 Nov 2010 17:26:41 +0100
> Subject: VLF: Funny= things!
>
> Hello group !
>
> Among others, I'm= experimenting on VLF.
>
> Today, I applied about 70W on my= 16m high Marconi. The loading coil is a
> Variometer (460-580mH) an= d the capacitive load of the antenna is about
> 600pf. The antenna= current was measured at about 300mA.
>
> 1. The coil is whis= tling but also the wires running across my property
> do. I could he= ar the high tone even in abt. 70m away from my place. This
> could= cause problems with my neighbours, I guess.
>
> 2. You = =3D --_c24f50c8-8fc1-49f0-a09e-d5db58a11393_--