Return-Path: Received: from mtain-mg05.r1000.mx.aol.com (mtain-mg05.r1000.mx.aol.com [172.29.96.205]) by air-da03.mail.aol.com (v129.4) with ESMTP id MAILINDA032-86134d7a88822ec; Fri, 11 Mar 2011 15:39:30 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mg05.r1000.mx.aol.com (Internet Inbound) with ESMTP id BD77038000A8D; Fri, 11 Mar 2011 15:37:25 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Py94i-0002B6-UK for rs_out_1@blacksheep.org; Fri, 11 Mar 2011 20:36:40 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Py94i-0002Ax-6K for rsgb_lf_group@blacksheep.org; Fri, 11 Mar 2011 20:36:40 +0000 Received: from bay0-omc1-s13.bay0.hotmail.com ([65.54.190.24]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Py94g-0007rs-9d for rsgb_lf_group@blacksheep.org; Fri, 11 Mar 2011 20:36:40 +0000 Received: from BAY154-W24 ([65.54.190.61]) by bay0-omc1-s13.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Fri, 11 Mar 2011 12:36:31 -0800 Message-ID: X-Originating-IP: [81.200.63.88] From: Lubos OK2BVG To: _RSGB_LF Date: Fri, 11 Mar 2011 21:36:31 +0100 Importance: Normal In-Reply-To: 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> , MIME-Version: 1.0 X-OriginalArrivalTime: 11 Mar 2011 20:36:31.0282 (UTC) FILETIME=[0128B920:01CBE02C] X-Spam-Score: 1.3 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,HTML_TAG_EXIST_TBODY=0.126,SUBJ_ALL_CAPS=1.166 Content-Type: multipart/alternative; boundary="_16a18294-6554-4f4e-b18b-6b15b8e57b57_" Subject: RE: LF: OK2BVG_TX_8970 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.3 required=5.0 tests=FORGED_HOTMAIL_RCVD,HTML_20_30, HTML_FONTCOLOR_UNKNOWN,HTML_FONTCOLOR_UNSAFE,HTML_MESSAGE, HTML_TAG_EXISTS_TBODY,SUBJ_ALL_CAPS 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: 3039ac1d60cd4d7a88044ed9 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --_16a18294-6554-4f4e-b18b-6b15b8e57b57_ Content-Type: text/plain; charset="iso-8859-2" Content-Transfer-Encoding: quoted-printable Hello Roger!I will send an information about my next transmission before= I will start TX. I hope, you will have time to catch my weak signal. 73! Lubos, OK2BVG From: rogerlapthorn@gmail.com Date: Fri, 11 Mar 2011 19:15:01 +0000 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: OK2BVG_TX_8970 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 73Roger 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 expe= ct this value thanks to Gerhard=B4s calculation).Today=B4s test was very= interesting. Lubos 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 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? =20 =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 =20 =20 =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: =20 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=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. =20 =20 I am going to take some photos and give them on my websides at the weekend. I will let you know, they are there. =20 =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=B4t be at home, so TX will transmit to approximately 12:00UT. It is the best time for VLF TX test, becouse the noise would be the lowest. =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 please :-) 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: =20 Dear Lubos, LF, =20 beneath is a posting from Paul Nicholson in the Yahoo VLF groop. His spectrum from last Saturday morning shows three amateur signals, including yours. =20 Very good! =20 73, Markus =20 ________________________________ Re: [VLF_Group] Re: DF6NM on 8970.00=20 Tue Mar 8, 2011 11:54 pm=20 =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 Re: [VLF_Group] Re: DF6NM on 8970.00=20 =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 =20 =20 =20 =20 =20 =20 =20 =20 =20 =20 =20 =20 =20 =20 =3D --_16a18294-6554-4f4e-b18b-6b15b8e57b57_ Content-Type: text/html; charset="iso-8859-2" Content-Transfer-Encoding: quoted-printable Hello Roger!
I will send an information about my next transmission bef= ore I will start TX.  I hope, you will have time to catch my weak sig= nal.

73!

Lubos, OK2BVG
From: rogerlapthorn@gmail.com
Date: Fri,= 11 Mar 2011 19:15:01 +0000
To: rsgb_lf_group@blacksheep.org
Subject= : Re: LF: OK2BVG_TX_8970

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=B4s calculation).
Today=B4s= test was very interesting.

Lubos

<= br>
Date: Fri, 11 Mar 2011 19:16:32 +0100
Fro= m: 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_l= f_group@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=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=B4t be at home, so TX will transmit to approximately 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_l= f_group@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.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
--


=20
=3D --_16a18294-6554-4f4e-b18b-6b15b8e57b57_--