Return-Path: Received: from mtain-dc05.r1000.mx.aol.com (mtain-dc05.r1000.mx.aol.com [172.29.64.133]) by air-dc05.mail.aol.com (v129.4) with ESMTP id MAILINDC051-86014d7a74db2b6; Fri, 11 Mar 2011 14:15:39 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc05.r1000.mx.aol.com (Internet Inbound) with ESMTP id 50E3738000092; Fri, 11 Mar 2011 14:15:37 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Py7n7-0000T9-Tx for rs_out_1@blacksheep.org; Fri, 11 Mar 2011 19:14:25 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Py7n7-0000T0-4s for rsgb_lf_group@blacksheep.org; Fri, 11 Mar 2011 19:14:25 +0000 Received: from mail-wy0-f171.google.com ([74.125.82.171]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Py7n4-0006Kq-Rl for rsgb_lf_group@blacksheep.org; Fri, 11 Mar 2011 19:14:25 +0000 Received: by wyb32 with SMTP id 32so3413720wyb.16 for ; Fri, 11 Mar 2011 11:14:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:subject:references:from:content-type:x-mailer :in-reply-to:message-id:date:to:content-transfer-encoding :mime-version; bh=tOouCe9arka1PLJjJzisVYgkl7CpJeq9SpZY4MI7ZIM=; b=BFY8wOtzppALak0kTx6y9MPssvOrfij8gUKlHX6M5gU+Wv92seNiOFGvx84WmQ/WPx AX9lIU0W3gmC6FDr594ofGxavxP58ZJ39JOeycnmSN5F3L1y7TPAUGGcmw7qaBBWfIfn 0gMy83ljSm484f9nGyYy3yYiTe8v3CRLdQvPQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:references:from:content-type:x-mailer:in-reply-to :message-id:date:to:content-transfer-encoding:mime-version; b=jcAW78UrJHrXEHg/RZLNlgC7d8e0hO0V5u+Aqcz0eCvWPZCNJ1LeE7LmZQuSw8eflk b5ld+QmFHniAf4JJthrkX0OiAK72C5u4mFqtRwJFhY04nB2DVwkF05d41g4IoMlEYLf8 ldHpQgqSJIA13ZUz8vzR5j7ySfL4AXyq1RnRk= Received: by 10.216.35.83 with SMTP id t61mr7622735wea.1.1299870776333; Fri, 11 Mar 2011 11:12:56 -0800 (PST) Received: from [192.168.1.102] (87.169.pn.adsl.brightview.com [91.125.169.87]) by mx.google.com with ESMTPS id r48sm2206517weh.36.2011.03.11.11.12.53 (version=TLSv1/SSLv3 cipher=OTHER); Fri, 11 Mar 2011 11:12:54 -0800 (PST) References: <8CDAC566BD54D9E-C98-93FD@Webmail-m125.sysops.aol.com> <4D77B7AF.3040104@iup.uni-heidelberg.de> <4D79C6A3.3070900@talktalk.net> <4D7A6700.50104@iup.uni-heidelberg.de> From: Roger Lapthorn X-Mailer: iPod Mail (8C148) In-Reply-To: Message-Id: Date: Fri, 11 Mar 2011 19:15:01 +0000 To: "rsgb_lf_group@blacksheep.org" Mime-Version: 1.0 (iPod Mail 8C148) DomainKey-Status: good (testing) X-Spam-Score: 0.1 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,HTML_TAG_EXIST_TBODY=0.126 Subject: Re: LF: OK2BVG_TX_8970 Content-Type: multipart/alternative; boundary=Apple-Mail-2--558840689 Content-Transfer-Encoding: 7bit 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_20_30, HTML_FONTCOLOR_UNKNOWN,HTML_FONTCOLOR_UNSAFE,HTML_MESSAGE, HTML_TAG_EXISTS_TBODY,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-AUTHENTICATION: mail_rly_antispam_dkim-m263.2 ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d40854d7a74d8349d X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --Apple-Mail-2--558840689 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hi Lubos Until Saturday evening I am not at home (I am with our grandson) so I cann= ot look for your signal. If you are transmitting on VLF on Sunday I shall= try to see you. If G3ZJO is able to copy there is a good chance I will co= py you too.=20 Congratulations on being copied by Paul Nicholson - that is very good DX= for 25W.=20 73 Roger G3XBM Via my 2.4GHz handheld (iPod Touch 4g) On 11 Mar 2011, at 18:53, Lubos OK2BVG wrote: > Hello Stefan! > Yes it is true. My PWR is 25W, antenna current is 300mA. But I use fixed= antenna, as you know, so the ERP is cca 30uW only (I can expect this valu= e thanks to Gerhard=C2=B4s calculation). > Today=C2=B4s test was very interesting. >=20 > Lubos >=20 >=20 > Date: Fri, 11 Mar 2011 19:16:32 +0100 > From: Stefan.Schaefer@iup.uni-heidelberg.de > To: rsgb_lf_group@blacksheep.org > Subject: Re: LF: OK2BVG_TX_8970 >=20 > Hello Lubos,=20 >=20 > Sorry, i haven't seen anything it seems. But 600 km by using 25 W at 897= 0 Hz would almost be a wonder :-) >=20 > Go on and good luck >=20 > 73, Stefan >=20 >=20 > Am 11.03.2011 13:47, schrieb Lubos OK2BVG: > Hello Eddie! > Thanks, for your receiving! My TX was on from 08:00 to 12:30UT. Did you= detect my signal? >=20 > Lubos, OK2BVG >=20 > Date: Fri, 11 Mar 2011 06:52:19 +0000 > From: qrss@talktalk.net > To: rsgb_lf_group@blacksheep.org > Subject: Re: LF: OK2BVG_TX_8970 >=20 > Hi Lubos >=20 > RX is on this morning awaiting your test. >=20 > Good Luck >=20 > Eddie G3ZJO >=20 > On 10/03/2011 19:08, Lubos OK2BVG wrote: > Hello Stefan, Markus, Gerhard and all VLF enthusiasts! > I was quite busy during last days, so I am writing just now. > Well... I tested my new VLF TX set of the day 5th March. It was the fir= st test only and I am very pleased, you saw my signal. I expected, it woul= d be poorly visible on the Gerhard=C2=B4s grabber only! In fact, it was= visible with S/N 10dB. > Some information: > The antenna is my MW Marconi L (24m up), but I increased top load on the= value 220m. > Generator is Wandel/Goltermann PS30, the finest tuning step 1Hz (OCXO). > PA is Seba Dynatronic 25W out. > My loading coil is made from 60l barrel, it contains two fixed coils 50= 0 + 500 turns of wire 0,4CuL + rotary coil made from 5litre bucket. >=20 > I am going to take some photos and give them on my websides at the weeke= nd. I will let you know, they are there. >=20 > My next VLF test will be tomorrow (2011-03-11): =20 > I will start transmission on 8970 tomorrow morning at 08:00UT.=20 > Than I won=C2=B4t be at home, so TX will transmit to approximately 12:00= UT. It is the best time for VLF TX test, becouse the noise would be the lo= west. >=20 > Thanks for your encouraging words and help!=20 >=20 > 73! >=20 > Lubos >=20 > Date: Wed, 9 Mar 2011 18:23:59 +0100 > From: Stefan.Schaefer@iup.uni-heidelberg.de > To: rsgb_lf_group@blacksheep.org > Subject: Re: VLF: OK2BVG signal in Todmorden >=20 > Wow, the next one!=20 > Lubos, can you tell us about your station? All parameters and data pleas= e :-) > How strong have you been visible at OE3GHB? >=20 > Welcome in the VLF TX group ;-) >=20 > 73, Stefan/DK7FC >=20 >=20 > Am 09.03.2011 10:49, schrieb Markus Vester: > Dear Lubos, LF, > =20 > beneath is a posting from Paul Nicholson in the Yahoo VLF groop. His spe= ctrum from last Saturday morning shows three amateur signals, including yo= urs. > =20 > Very good! > =20 > 73, Markus > =20 > ________________________________ > Re: [VLF_Group] Re: DF6NM on 8970.00 > Tue Mar 8, 2011 11:54 pm >=20 >=20 > Thanks for the info Markus. >=20 > > I do not know whether that was really a transmission > > from Lubos, or a local pretest from Gerhard. >=20 > Yes, that long dash was Lubos. > OK2BVG was active that morning for a couple of hours. >=20 > I get this spectrum, (08:00-09:00, 278uHz bins) >=20 > http://abelian.org/vlf/tmp/110308b.gif >=20 > which has a small peak at 8970Hz - 3.0mHz, bearing east. >=20 > To bring this out I found the best S/N at bearing 110 and > I synthesised a unidirectional cardioid by combining H and E fields. >=20 > Only 3.6 sigma unfortunately. >=20 > Hopefully Lubos will do further tests. He should be visible > here with 30uW at 1423km if the tx frequency is stable enough. > -- > Paul Nicholson > -- >=20 > Re: [VLF_Group] Re: DF6NM on 8970.00 >=20 >=20 > Thanks for the info Markus. >=20 > > I do not know whether that was really a transmission > > from Lubos, or a local pretest from Gerhard. >=20 > Yes, that long dash was Lubos. > OK2BVG was active that morning for a couple of hours. >=20 > I get this spectrum, (08:00-09:00, 278uHz bins) >=20 > http://abelian.org/vlf/tmp/110308b.gif >=20 > which has a small peak at 8970Hz - 3.0mHz, bearing east. >=20 > To bring this out I found the best S/N at bearing 110 and > I synthesised a unidirectional cardioid by combining H and E fields. >=20 > Only 3.6 sigma unfortunately. >=20 > Hopefully Lubos will do further tests. He should be visible > here with 30uW at 1423km if the tx frequency is stable enough. > -- > Paul Nicholson > -- >=20 >=20 >=20 >=20 >=20 >=20 --Apple-Mail-2--558840689 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
Hi Lubos

Unt= il Saturday evening I am not at home (I am with our grandson) so I cannot= look for your signal. If you are transmitting on VLF on Sunday I shall tr= y to see you. If G3ZJO is able to copy there is a good chance I will copy= you too. 

Congratulations on being copied= by Paul Nicholson - that is very good DX for 25W. 

73
Roger G3XBM

Via my 2.4GHz handheld (iPod Touch= 4g)

On 11 Mar 2011, at 18:53, Lubos OK2BVG <bvgbob@hotmail.com> wrote:

<= div>
Hello Stefan!
Yes it is true. My PWR is 25W, antenna current is 300mA.= But I use fixed antenna, as you know, so the ERP is cca 30uW only (I can= expect this value thanks to Gerhard=C2=B4s calculation).
Today= =C2=B4s test was very interesting.

Lubos


Date: Fri, 11 Mar 2011 19:16:32 +0100From: Stefan.Schaefer@iup.uni-hei= delberg.de
To: = rsgb_lf_group@blacksheep.o= rg
Subject: Re: LF: OK2BVG_TX_8970

=20 Hello Lubos,

Sorry, i haven't seen anything it seems. But 600 km by using 25 W at 8970 Hz would almost be a wonder :-)

Go on and good luck

73, Stefan


Am 11.03.2011 13:47, schrieb Lubos OK2BVG:
Hello Eddie!
Thanks, for your receiving! My TX was on from 08:00 to 12:30UT. Did you detect my signal?

Lubos, OK2BVG

Date: Fri, 11 Mar 2011 06:52:19 +0000
From: qrss@talktalk.net
To: rsgb_lf_gr= oup@blacksheep.org
Subject: Re: LF: OK2BVG_TX_8970

=20 =20 =20 Hi Lubos

RX is on this morning awaiting your test.

Good Luck

Eddie G3ZJO

On 10/03/2011 19:08, Lubos OK2BVG wrote:
Hello Stefan, Markus, Gerhard and all VLF enthusiasts!
I was quite busy during last days, so I am writing just now.
Well... I tested my new VLF TX set of the day  5th March. It was the first test only and I am very pleased, you saw my signal. I expected, it would be poorly visible  on the Gerhard=C2=B4s grabber= only! In fact, it was visible with S/N 10dB.
Some information:
The antenna is my MW Marconi L (24m up), but I increased top load on the value 220m.
Generator is Wandel/Goltermann PS30, the finest tuning step 1Hz (OCXO).
PA is Seba Dynatronic 25W out.
My loading coil is made from 60l barrel, it contains two fixed coils  500 + 500 turns of wire 0,4CuL + rotary coil made from 5litre bucket.

I am going to take some photos and give them on my websides at the weekend. I will let you know, they are there.

My next VLF test will be tomorrow (2011-03-11):    
I will start transmission on 8970 tomorrow morning at 08:00UT. 
Than I won=C2=B4t be at home, so TX will transmit to approximatel= y 12:00UT. It is the best time for VLF TX test, becouse the noise would be the lowest.

Thanks for your encouraging words and help! 

73!

Lubos

Date: Wed, 9 Mar 2011 18:23:59 +0100
From: Stefan.Schaefer@iup.uni-heidelberg.de
To: rsgb_lf_gr= oup@blacksheep.org
Subject: Re: VLF: OK2BVG signal in Todmorden

Wow, the next one!
Lubos, can you tell us about your station? All parameters and data please :-)
How strong have you been visible at OE3GHB?

Welcome in the VLF TX group ;-)

73, Stefan/DK7FC


Am 09.03.2011 10:49, schrieb Markus Vester:
Dear Lubos, LF,
 
beneath is a posting= from Paul Nicholson in the Yahoo VLF groop. His spectrum from last Saturda= y morning shows three amateur signals, including yours.
 
Very good!
 
73, Markus
 
__________________________= ______
Re: [VLF_Group] Re: DF6NM on 8970.00
Tue Mar 8, 2011 11:54 pm


Thanks for the info Markus.

> I do not know whether that was really a transmission
> from Lubos, or a local pretest from Gerhard.

Yes, that long dash was Lubos.
OK2BVG was active that morning for a couple of hours.

I get this spectrum, (08:00-09:00, 278uHz bins)

http://abelian.org/vlf/tmp/110308b.gif=

which has a small peak at 8970Hz - 3.0mHz, bearing east.

To bring this out I found the best S/N at bearing 110 and
I synthesised a unidirectional cardioid by combining H and E fields.

Only 3.6 sigma unfortunately.

Hopefully Lubos will do further tests. He should be visible
here with 30uW at 1423km if the tx frequency is stable enough.
--
Paul Nicholson
--

Re: [VLF_Group] Re: DF6NM on 8970.00


Thanks for the info Markus.

> I do not know whether that was really a transmission
> from Lubos, or a local pretest from Gerhard.

Yes, that long dash was Lubos.
OK2BVG was active that morning for a couple of hours.

I get this spectrum, (08:00-09:00, 278uHz bins)

http://abelian.o= rg/vlf/tmp/110308b.gif

which has a small peak at 8970Hz - 3.0mHz, bearing east.

To bring this out I found the best S/N at bearing 110 and
I synthesised a unidirectional cardioid by combining H and E fields.

Only 3.6 sigma unfortunately.

Hopefully Lubos will do further tests. He should be visible
here with 30uW at 1423km if the tx frequency is stable enough.
--
Paul Nicholson
--


=20
=3D --Apple-Mail-2--558840689--