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The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hi Stefan and group Don't listen to them. I have no idea about the probability of sucess in theory but as they say "the proof of the pudding etc." Good luck, you are an example to us all. 73 es GL Pete M0FMT IO91UX [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [77.238.189.77 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (m0fmt[at]yahoo.co.uk) 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 11963a33d604c33786d8f1de94ce267f Subject: Re: LF: Re: Considerations about wide DX experiments on 630m and tonites QRSS-60 Content-Type: multipart/alternative; boundary="1982344905-1495622067-1360666999=:82679" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.7 required=5.0 tests=HTML_20_30,HTML_MESSAGE, NO_EXPERIENCE,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: mtain-mg05.r1000.mx.aol.com ; domain : yahoo.co.uk DKIM : fail x-aol-sid: 3039ac1d60cd511a235e210c X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --1982344905-1495622067-1360666999=:82679 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Hi Stefan and group=0A=A0=0ADon't listen to them. I have no idea about the = probability of sucess in theory but as they say "the proof of the pudding e= tc." Good luck, you are an example to us all.=0A=0A73 es GL Pete M0FMT IO91= UX=0A=0A=0A>________________________________=0A> From: Alan Melia =0A>To: rsgb_lf_group@blacksheep.org =0A>Sent: Tuesday, 1= 2 February 2013, 1:09=0A>Subject: LF: Re: Considerations about wide DX expe= riments on 630m and tonites QRSS-60=0A> =0A>Hi Stefan I think that maybe t= he right approach. I think you may find that the "perceived wisdom" on fadi= ng rate v QRSS speed is based on relatively short paths. I suspect it may w= ell be very different at real DX range, that is several hops.......>6000km.= There obviously is some sort of a problem because the wavelength is much s= horter than 136kHz so the phase changes more rapidly with ionisation and "a= pparent refection height" but you need two "modes" of nearly equal strength= to get extinction. This may not be so prevalent at long ranges on 470kHz. = The experiment will be very interesting if you can start to leave traces on= distant grabbers.=0A>=0A>Alan=0A>G3NYK=0A>----- Original Message ----- Fro= m: "Stefan Sch=E4fer" =0A>To: ; "Vasily Savchenko" ; "Garry and= Linda Hess" ; "Douglas D. Williams" ; "Andy - KU4XR" ; "Edgar J Twining" =0A>Sent: Monday, February 11, 2013 10:57 PM=0A>Subject: = LF: Considerations about wide DX experiments on 630m and tonites QRSS-60=0A= >=0A>=0A>> MF !!!!!!!!!!!!!!!!!!!!!!! ;-)=0A>> =0A>> Edgar in Tasmania was = recently asking if i have some plans about DX experiments on 630m. Well tha= t is a path of > 16000 km. However we do not have real experience if that i= s easier than 2200m or rather impossible.=0A>> =0A>> At least i know that t= here was not even a single decode by UA0SNV in my MF WSPR and QRSS tests so= far, while it is no problem on LF (OK my MF signal is weaker than my LF si= gnal). Thus i would guess that it is much harder to get some traces of a si= gnal on 630m. We will try anyway!=0A>> =0A>> I'm starting to run a QRSS-60 = transmission on 476.172 kHz (+- a few Hz) for the night. Maybe someone acro= ss the pond will catch something. We, or at least i still have no experienc= e about the QSB problem on very slow QRSS transmissions on MF. It would be = interesting to see a spectrogram.=0A>> =0A>> On air in a few minutes.=0A>> = =0A>> 73, Stefan/DK7FC=0A>> =0A>> PS: No, not only beacon transmissions, i'= ve just had a > 1 hour long CW QSO with PA0LCE and DK6SX/p! Also contacts t= o OK2BVG and S57A.=0A>> =0A>=0A>=0A>=0A>=0A> --1982344905-1495622067-1360666999=:82679 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Hi Stefan and group
 
Don't listen to them. I= have no idea about the probability of sucess in theory but as they say "th= e proof of the pudding etc." Good luck, you are an example to us all.
73 es GL Pete M0FMT IO91UX
From: Alan Melia <alan.melia@btinternet.com>
To: rsgb_lf_group@blacksheep.org
Sent: Tuesday, 12 February 2013, = 1:09
Subject: LF: Re: = Considerations about wide DX experiments on 630m and tonites QRSS-60

Hi Stefan I think that maybe the right approach. I think y= ou may find that the "perceived wisdom" on fading rate v QRSS speed is base= d on relatively short paths. I suspect it may well be very different at rea= l DX range, that is several hops.......>6000km. There obviously is some = sort of a problem because the wavelength is much shorter than 136kHz so the= phase changes more rapidly with ionisation and "apparent refection height"= but you need two "modes" of nearly equal strength to get extinction. This = may not be so prevalent at long ranges on 470kHz. The experiment will be very = interesting if you can start to leave traces on distant grabbers.

Al= an
G3NYK
----- Original Message ----- From: "Stefan Sch=E4fer" <Stefan.Schaefer@iup.uni-heidelberg.de<= /a>>
To: <rsgb_lf_group@blacksheep.org&g= t;; "Vasily Savchenko" <ua0snv@yahoo.com>; "Garry and Linda Hess" &l= t;k3siw@sbcglobal.net>; "Douglas D. Williams" <kb4oer@gmail.com>; "Andy - KU4XR" <ku4xr@yahoo.com>; "Edgar J Twini= ng" <edgarjtwining@virginbroadband.= com.au>
Sent: Monday, February 11, 2013 10:57 PM
Subject: LF: = Considerations about wide DX experiments on 630m and tonites QRSS-60

> MF !!!!!!!!!!!!!!!!!!!!!!! ;-)
>
> Edgar in Tasmania= was recently asking if i have some plans about DX experiments on 630m. Wel= l that is a path of > 16000 km. However we do not have real experience i= f that is easier than 2200m or rather impossible.
>
> At least= i know that there was not even a single decode by UA0SNV in my MF WSPR and= QRSS tests so far, while it is no problem on LF (OK my MF signal is weaker= than my LF signal). Thus i would guess that it is much harder to get some = traces of a signal on 630m. We will try anyway!
>
> I'm starting to run a QRSS-60 transmission on 476.172 kHz (+- a few Hz) for th= e night. Maybe someone across the pond will catch something. We, or at leas= t i still have no experience about the QSB problem on very slow QRSS transm= issions on MF. It would be interesting to see a spectrogram.
>
&g= t; On air in a few minutes.
>
> 73, Stefan/DK7FC
>
&= gt; PS: No, not only beacon transmissions, i've just had a > 1 hour long= CW QSO with PA0LCE and DK6SX/p! Also contacts to OK2BVG and S57A.
> =




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