Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dl05.r1000.mx.aol.com (Internet Inbound) with ESMTP id ED6493800009B; Fri, 7 Oct 2011 10:30:35 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RCBQF-0003P4-Qn for rs_out_1@blacksheep.org; Fri, 07 Oct 2011 15:29:11 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RCBQF-0003Ov-4G for rsgb_lf_group@blacksheep.org; Fri, 07 Oct 2011 15:29:11 +0100 Received: from blu0-omc1-s36.blu0.hotmail.com ([65.55.116.47]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RCBQD-0007uR-EH for rsgb_lf_group@blacksheep.org; Fri, 07 Oct 2011 15:29:11 +0100 Received: from BLU153-W1 ([65.55.116.9]) by blu0-omc1-s36.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Fri, 7 Oct 2011 07:29:02 -0700 Message-ID: X-Originating-IP: [138.32.32.166] From: Laurence KL7UK To: Date: Fri, 7 Oct 2011 06:29:01 -0800 Importance: Normal In-Reply-To: <4E8F044C.5000005@iup.uni-heidelberg.de> References: ,<4E8F044C.5000005@iup.uni-heidelberg.de> MIME-Version: 1.0 X-OriginalArrivalTime: 07 Oct 2011 14:29:02.0856 (UTC) FILETIME=[76056880:01CC84FD] X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Content-Type: multipart/alternative; boundary="_1cdaabce-4ce2-42b8-9042-13585fe885f7_" Subject: RE: LF: Conditions 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-SCOLL-SCORE: 0:2:463590464:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d4ad34e8f0d0b6994 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --_1cdaabce-4ce2-42b8-9042-13585fe885f7_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Stefan -=20 =20 It gets a little better=2C ie a few more dB's strength wise but whats impor= tant for 8970 is probably the background "blue" youll see on the screen ie = the QRN. GBZ/FTA doesnt get much stronger than indicated on the overnight s= nap. =20 Optimum path for comms at DHO freq would indicate the middle of Night Eu ti= me=2C which is kind of challenging at your end - and from Alaska when Im no= t getting South or Central Pacific/Asia QRN which rises later. As you point= ed out DHO isnt 8970 but s/n wise Im guessing its pretty indicative but pro= bably more flat signal strength wise than 23kHz =20 Ill be in Alaska at home (hurrah) over the Christmas period and installing = a new VLF (larger) array=2C and GPS discplined 10MHz/500Hz ref's which Ive = built down here which may help a tadge but looking at the results so far it= isnt too shabby.=20 =20 Ive been built around over the past couple of years on one side but still h= ave the water/ice (Lake) path on the Eu heading. Id love to remote power pr= eamp but the animals and darkness/snow etc make it very challenging just to= keep it up remotely. =20 I want to have at least two loops so I can point one down the West Coast t= owards Scott in VE7 as hes pretty much in a nullish position at the moment.= I could really do with more automation in remote switching USB/serial but= things are a little tight at the moment. Ive got a spare rotator and need = to get some thought into remote control.... =20 Laurence KL7UK KL1X WE2XPQ etc =20 Date: Fri=2C 7 Oct 2011 15:53:16 +0200 From: Stefan.Schaefer@iup.uni-heidelberg.de To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Conditions Hello Laurence=2C=20 That sound very promising=2C about DHO! Do you remember its strength during our last experiments in december and fe= bruary? Is it even stronger these days? 73=2C Stefan/DK7FC PS: Nothing this weekend :-/ Am 07.10.2011 15:19=2C schrieb Laurence KL7UK:=20 =20 In Alaska HF=2C MF and LF appear still to be very very poor with high losse= s over the Pole - dang pesky Protons.. No real strength from DCF39 =20 Long haul AK firing East on MF was only just above poor with a few hits on = WSPR from wd2xsh/7 over a +5000Kms path but still some 25-35dB down on peak= levels. =20 Alaska VLF over the pole to Eu is improving all the time and actual signal = levels and s/n improving - Ive spread the bandscale (nice old word that) ou= t a bit to show GBZ and others a bit more clearly - DHO38 peaking some 30dB= above noise in the latter half of the Eu night before collapsing at dawn. =20 http://kl7uk.com/VLFAlaska.html =20 Laurence KL7UK Wasilla Alaska remotely controlled from Oklahoma = --_1cdaabce-4ce2-42b8-9042-13585fe885f7_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Stefan -
 =3B
It gets a little better=2C ie a few more dB's strength wise =3Bbut what= s important for 8970 is probably =3Bthe background "blue" youll see on = the screen ie the QRN. GBZ/FTA doesnt get much stronger than indicated on t= he overnight snap.
 =3B
Optimum path for comms =3Bat DHO freq would indicate the middle of = =3BNight Eu time=2C which is kind of challenging at your end - and from Ala= ska when Im not getting South =3Bor Central Pacific/Asia QRN which rise= s later. As you pointed out DHO isnt 8970 but s/n wise Im guessing its pret= ty indicative but probably more flat signal strength wise than 23kHz
 =3B
Ill be in Alaska at home (hurrah) =3Bover the Christmas period and inst= alling a new VLF (larger) =3Barray=2C and GPS discplined 10MHz/500Hz re= f's which Ive built =3Bdown here =3Bwhich may help a tadge but = =3Blooking at the results so =3Bfar it isnt too shabby.
 =3B
Ive been built around over the past couple of years on one side =3Bbut = still have the water/ice (Lake) path on the Eu heading. Id love to remote p= ower preamp but the animals and darkness/snow etc make it very challenging = just to keep it up remotely.
 =3B
 =3BI want to have at least two loops so I can point =3Bone =3B= down the West Coast =3Btowards Scott in VE7 as hes pretty =3Bmuch&n= bsp=3Bin =3Ba nullish position at the moment. =3B I could really do= with more automation in remote switching USB/serial =3Bbut things are = a little tight at the moment. Ive =3Bgot a spare rotator and need to ge= t some thought into remote control....
 =3B
Laurence KL7UK KL1X WE2XPQ etc
 =3B
Date: Fri=2C 7 Oct 2011 15:53:16 +0200
From: Stefan.Schaefer@iup.uni-hei= delberg.de
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: Conditio= ns

Hello Laurence=2C
That sound very promising=2C about DHO!
Do you remember its strengt= h during our last experiments in december and february? Is it even stronger= these days?

73=2C Stefan/DK7FC

PS: Nothing this weekend :-/<= BR>
Am 07.10.2011 15:19=2C schrieb Laurence KL7UK:=20
 =3B
In Alaska HF=2C MF and LF appear still to be ver= y very poor with high losses over the Pole - dang pesky Protons.. =3B N= o real strength from DCF39
 =3B
Long haul AK firing East on MF wa= s only just above poor with a few hits on WSPR from wd2xsh/7 over a +5000Km= s path but still some 25-35dB down =3Bon peak levels.
 =3B
Al= aska VLF over the pole to Eu is improving all the time and actual signal le= vels and s/n improving - Ive spread the bandscale (nice old word that) out = a bit to show GBZ and others a bit more clearly - DHO38 peaking some 30dB a= bove noise in the latter half of the Eu night before collapsing at dawn. =3B
ht= tp://kl7uk.com/VLFAlaska.html
 =3B
Laurence KL7UK Wasilla Ala= ska remotely controlled from Oklahoma
=
= --_1cdaabce-4ce2-42b8-9042-13585fe885f7_--