Return-Path: Received: from mtain-dj05.r1000.mx.aol.com (mtain-dj05.r1000.mail.aol.com [172.19.187.141]) by air-mc07.mail.aol.com (v128.2) with ESMTP id MAILINMC074-a97e4bc8cacd2f4; Fri, 16 Apr 2010 16:38:37 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-dj05.r1000.mx.aol.com (Internet Inbound) with ESMTP id B9CCD380000A6; Fri, 16 Apr 2010 16:38:35 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1O2sIS-00053i-UT for rs_out_1@blacksheep.org; Fri, 16 Apr 2010 21:37:52 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1O2sIS-00053Z-F9 for rsgb_lf_group@blacksheep.org; Fri, 16 Apr 2010 21:37:52 +0100 Received: from out1.ip08ir2.opaltelecom.net ([62.24.128.244]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1O2sIQ-0005V3-4e for rsgb_lf_group@blacksheep.org; Fri, 16 Apr 2010 21:37:52 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ak8FAMNnyEtcGPFP/2dsb2JhbACMegOCVYYDhiRxvn+FDgQ X-IronPort-AV: E=Sophos;i="4.52,221,1270422000"; d="scan'208,217";a="445808779" Received: from unknown (HELO your91hoehfy9g) ([92.24.241.79]) by out1.ip08ir2.opaltelecom.net with SMTP; 16 Apr 2010 21:37:44 +0100 Message-ID: <003701cadda4$aba89e50$0301a8c0@your91hoehfy9g> From: "mal hamilton" To: References: <001201cadd83$a1ed53e0$0301a8c0@your91hoehfy9g> Date: Fri, 16 Apr 2010 21:37:44 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: Dreamers Band update from W1VLF Content-Type: multipart/alternative; boundary="----=_NextPart_000_0034_01CADDAD.0C7E87A0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_40_50,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: 3039cdbc9d0a4bc8cacb54aa X-AOL-IP: 193.82.116.20 ------=_NextPart_000_0034_01CADDAD.0C7E87A0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable QRS 6 YEARS would be even better=20 g3kev ----- Original Message -----=20 From: Markus Vester=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Friday, April 16, 2010 9:29 PM Subject: Re: LF: Dreamers Band update from W1VLF Dear Paul and Jay, this is an excellent result, well done!=20 The crossover between reactive nearfield (E ~ r^-3) and farfield (r^= -1) occurs at lambda/2/pi =3D 5.3 km. As you seem to have quite a bit= of margin there, your signal will be detectable very significantly be= yond that. Assuming otherwise equal receive conditions, QRSS-120 shoul= d get you more than 6 times further than QRSS-3. Best wishes, Markus (DF6NM) ----- Original Message -----=20 From: Warren Ziegler=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Friday, April 16, 2010 8:05 PM Subject: Re: LF: Dreamers Band update from W1VLF Paul, Great work! Nice looking coil! How much power can you crank= through it? At 5kM, I believe that you are still in the near field (9kHz wavelength is 33km), so signal will fall off at the 3rd power of distance until you reach far-field conditions. --=20 73 Warren K2ORS WD2XGJ WD2XSH/23 WE2XEB/2 WE2XGR/1 at 1:51 PM, Paul A. Cianciolo wrote: > Hello Folks, > > Today we made our first outdoor transmission on VLF. > > The system resonance forced the transmissions to take place on= 8890 Hz at > least until I can get a variometer worked up. > > The distance is only 5 KM but the signal is quite good on QRSS3. > > I can only wonder how far the signal would go using QRSS 120??? > > Please comment if you can, this a great learning experience for= me > > Thank you > > PauLC > W1VLF > > http://www.rescueelectronics.com/9-Kilohertz.html > ------=_NextPart_000_0034_01CADDAD.0C7E87A0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
QRS 6 YEARS would be even better
g3kev
 
----- Original Message -----
Sent: Friday, April 16, 2010= 9:29=20 PM
Subject: Re: LF: Dreamers Ban= d update=20 from W1VLF

Dear Paul and Jay,
 
this is an excellent result, well= done!=20
 
The crossover between reactive= nearfield (E=20 ~ r^-3) and farfield (r^-1) occurs at lambda/2/pi =3D 5.3= km. As=20 you seem to have quite a bit of margin there, your signal will= be=20 detectable very significantly beyond that. Assuming otherw= ise equal=20 receive conditions, QRSS-120 should get you more than 6 times furthe= r than=20 QRSS-3.
 
Best wishes,
Markus (DF6NM)
 
----- Original Message -----
From:=20 Warre= n Ziegler=20
Sent: Friday, April 16, 201= 0 8:05=20 PM
Subject: Re: LF: Dreamers= Band update=20 from W1VLF

Paul,

    =   Great=20 work! Nice looking coil!  How much power can you crank throug= h=20 it?
At 5kM, I believe that you are still in the near field=20 (9kHz
wavelength is 33km), so signal will fall off at the 3rd= power=20 of
distance until you reach far-field conditions.

-- 73 Warren=20 K2ORS
         &nb= sp;     =20 WD2XGJ
         &n= bsp;     =20 WD2XSH/23
         = ;      =20 WE2XEB/2
         =       =20 WE2XGR/1


 at 1:51 PM, Paul A. Cianciolo <paulc@snet.net> wrote:
&= gt; Hello=20 Folks,
>
> Today we made our first outdoor transmissio= n on=20 VLF.
>
> The system resonance forced the transmissions= to take=20 place on 8890 Hz at
> least until I can get a variometer wor= ked=20 up.
>
> The distance is only 5 KM but the signal is qu= ite good=20 on QRSS3.
>
> I can only wonder how far the signal wou= ld go=20 using QRSS 120???
>
> Please comment if you can, this= a great=20 learning experience for me
>
> Thank you
>
&g= t;=20 PauLC
> W1VLF
>
> http://www.rescueelectronics.com= /9-Kilohertz.html
>
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