Return-Path: Received: from mtain-mh06.r1000.mx.aol.com (mtain-mh06.r1000.mx.aol.com [172.29.96.218]) by air-mc03.mail.aol.com (v129.4) with ESMTP id MAILINMC034-a8de4d60086f388; Sat, 19 Feb 2011 13:14:07 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mh06.r1000.mx.aol.com (Internet Inbound) with ESMTP id EE07B380000B9; Sat, 19 Feb 2011 13:14:04 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PqrJ1-0007nc-J4 for rs_out_1@blacksheep.org; Sat, 19 Feb 2011 18:13:19 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PqrJ0-0007nT-Vl for rsgb_lf_group@blacksheep.org; Sat, 19 Feb 2011 18:13:18 +0000 Received: from out1.ip05ir2.opaltelecom.net ([62.24.128.241]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PqrIy-0005jl-4P for rsgb_lf_group@blacksheep.org; Sat, 19 Feb 2011 18:13:18 +0000 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ai0BADaXX01Z8ngc/2dsb2JhbACCSoFWk0sOjjxzqgiQFIRodgSBaI4AgnY X-IronPort-AV: E=Sophos;i="4.62,192,1297036800"; d="scan'208,217";a="332652478" Received: from unknown (HELO xphd97xgq27nyf) ([89.242.120.28]) by out1.ip05ir2.opaltelecom.net with SMTP; 19 Feb 2011 18:13:09 +0000 Message-ID: <00e301cbd060$a97b2990$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: References: <007501cbd04d$2690bcb0$0401a8c0@xphd97xgq27nyf>, <00a101cbd054$234a8e30$0401a8c0@xphd97xgq27nyf> Date: Sat, 19 Feb 2011 18:13:08 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: LF: Re: Re: Antennas es power Content-Type: multipart/alternative; boundary="----=_NextPart_000_00E0_01CBD060.A922F770" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,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: 3039ac1d60da4d60086c2eda X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none ------=_NextPart_000_00E0_01CBD060.A922F770 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Laurance You referred to the Russians, US, Chinese etc government commercial ag= encies and not your specific experiment. I do not have a wideband RX so cannot help with your request. On VLF= my max BW is 3 Khz, ideal for my needs. You might upset Stefan talking about his ERP from his KITE vertical an= tenna, Be careful he might go Underground!! G3KEV =20 ----- Original Message -----=20 From: Laurence KL7UK=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Saturday, February 19, 2011 5:06 PM Subject: LF: Re: Antennas es power Mal =E2=80=93 well done on receiving on 9khz but my interest is grea= ter - and a plot of 1-24Khz or higher would help me and others see the= kind of levels and signal to noise you, on your antennae system, in= your part of Lancashire compares with mine over here so I can move to= wards that direction. Doesn=E2=80=99t take but a few mins but I unders= tand if you don=E2=80=99t want to help.=20 As one that has operated at a VLF commerical tx/rx research station= in the 70=E2=80=99s let me tell you on some days there was little to= no difference in transmitted signals =E2=80=93 we certainly had days= when our ERP=E2=80=99s were less than Stefan and Ossis=E2=80=99 (!) 73 ps At this time DHO38 is the weakest Ive seen it over the pole =20 From: mal hamilton=20 Sent: Saturday, February 19, 2011 4:43 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: Antennas es power Laurence there is a BIG difference between radio amateur transmitted= signals and Commercial operators Regarding LF plots, suffice it to say that if you read my message yo= u will see that I can copy OE5ODL on 9 Khz in a qrs 3 window. and supplied screen shots for verification. What is the point sending a 1 - 24 Khz plot also I use narrow band= reception not wideband. Mal/G3KEV ----- Original Message -----=20 From: Laurence KL7UK=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Saturday, February 19, 2011 4:27 PM Subject: RE: LF: Antennas es power =20 "proper elevated antenna is wasted time except one is content with= a few kilometres coverage, and..."=20 Mal - try telling that to the Russian, US, Chinese Mi$#tary and An= tarctic VLF research stations that - they appear to have other effecti= ve solutions to radiate VLF or lower globally and are certainly not= elevated in some forms :-) =20 Ill still be very interested in my request for your wideband VLF= plots Mal - even if its just over a couple of hours from 1Khz to 24KH= z say - more if you have it. I just dont know how your view of VLF is= in NE England, near that beautiful county of Lancashire. =20 Cheers Laurence KL7 UK aka G4DMA et al =20 ----------------------------------------------------------------------= ------ From: john.rabson@numeo.fr Date: Sat, 19 Feb 2011 17:10:58 +0100 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Antennas es power On 19 Feb 2011, at 16:53CET, mal hamilton wrote: On VLF es LF especially, using anything but a proper elevated= antenna is wasted time except one is content with a few kilometres co= verage, and=20 earth probe inductive/conduction devices are only good for Cave= Divers. Wrong. They are used by cavers generally, not just divers, and di= vers usually only use radio when they come up for air. John F5VLF ------=_NextPart_000_00E0_01CBD060.A922F770 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
Laurance
You referred to the Russians, US, Chi= nese etc=20 government commercial agencies and not your specific experiment.
I do not have a wideband RX so cannot= help with=20 your request. On VLF my max BW is 3 Khz, ideal for my needs.
You might upset Stefan talking about= his ERP=20 from his KITE vertical antenna, Be careful he might go=20 Underground!!
G3KEV
 
 
 
----- Original Message -----
From:=20 Laurence KL7UK
Sent: Saturday, February 19,= 2011 5:06=20 PM
Subject: LF: Re: Antennas es= power

 
From: mal hamilton=
Sent: Saturday, February 19, 2011 4:43 PM
Subject: Re: LF: Antennas es power
 
Laurence there is a BIG difference= between radio=20 amateur transmitted signals and Commercial operators
Regarding LF plots, suffice it to= say that if you=20 read my message you will see that I can copy OE5ODL on  9 Khz= in a =20 qrs 3 window.
and supplied screen shots for=20 verification.
What is the point sending a 1 - 24= Khz plot also=20 I use narrow band reception not wideband.
Mal/G3KEV
 
----- Original Message -----
From:=20 Laurence KL7UK
Sent: Saturday, February 19= , 2011 4:27=20 PM
Subject: RE: LF: Antennas= es=20 power
 
 
"proper elevated ant= enna is=20 wasted time except one is content with a few kilometres coverage,= and..."=20

Mal - try telling that to the Russian, US, Chinese= Mi$#tary=20 and Antarctic VLF research stations that - they appear to have oth= er=20 effective solutions to radiate VLF or lower  globally and are= certainly=20 not elevated in some forms :-)
 
Ill still be very inte= rested in=20 my request for your wideband VLF plots Mal - even if its just over= a couple=20 of hours from 1Khz to 24KHz say - more if you have it. I just dont= know how=20 your view of VLF is in NE England, near that beautiful county of= =20 Lancashire.
 
Cheers Laurence
KL7 UK aka G4DMA et=20 al
 
From: john.rabson@numeo.fr
Date: Sat, 19 Feb 2011 17:10:58 +010= 0
To:=20 rsgb_lf_group@blacksheep.org
Subject: Re: LF: Antennas es power=

On 19 Feb 2011, at 16:53CET, mal hamilton wrote:

On VLF es=20 LF especially,  using anything but a proper elevated antenn= a is=20 wasted time except one is content with a few kilometres coverage= , and=20

earth=20 probe inductive/conduction devices are only good for Cave=20 Divers.
Wrong.  They= are used by=20 cavers generally, not just divers, and divers usually only use rad= io when=20 they come up for air.
 
John=20 F5VLF

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