Return-Path: Received: from mtain-de11.r1000.mx.aol.com (mtain-de11.r1000.mx.aol.com [172.29.64.211]) by air-di04.mail.aol.com (v128.1) with ESMTP id MAILINDI043-eac44bbce7ee16b; Wed, 07 Apr 2010 16:15:43 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-de11.r1000.mx.aol.com (Internet Inbound) with ESMTP id 261D738000319; Wed, 7 Apr 2010 16:15:40 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Nzbdx-0006tb-Vg for rs_out_1@blacksheep.org; Wed, 07 Apr 2010 21:14:33 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Nzbdx-0006tS-9Q for rsgb_lf_group@blacksheep.org; Wed, 07 Apr 2010 21:14:33 +0100 Received: from imr-db02.mx.aol.com ([205.188.91.96]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Nzbdu-0006Ck-OV for rsgb_lf_group@blacksheep.org; Wed, 07 Apr 2010 21:14:33 +0100 Received: from mtaout-ma05.r1000.mx.aol.com (mtaout-ma05.r1000.mx.aol.com [172.29.41.5]) by imr-db02.mx.aol.com (8.14.1/8.14.1) with ESMTP id o37KE4xc002062 for ; Wed, 7 Apr 2010 16:14:04 -0400 Received: from Black (g229115166.adsl.alicedsl.de [92.229.115.166]) by mtaout-ma05.r1000.mx.aol.com (MUA/Third Party Client Interface) with ESMTPA id 94E62E000182 for ; Wed, 7 Apr 2010 16:14:03 -0400 (EDT) Message-ID: From: "Markus Vester" To: References: <4BB13167.3080404@telus.net>, <4BBA4F6A.9840.F1BA72@mike.dennison.ntlworld.com>, <4BBACEA6.4060703@telus.net> <4BBCB626.30059.18824AC@mike.dennison.ntlworld.com> <004201cad674$7533cd40$6d01a8c0@DELL4> In-Reply-To: <004201cad674$7533cd40$6d01a8c0@DELL4> Date: Wed, 7 Apr 2010 22:13:47 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6000.16480 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6000.16669 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: VE7TIL Grabber and DCF39 Monitor back online Content-Type: multipart/alternative; boundary="----=_NextPart_000_004A_01CAD69F.980D40F0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_20_30,HTML_MESSAGE, MISSING_OUTLOOK_NAME 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: 3039ac1d40d34bbce7ec50c6 X-AOL-IP: 193.82.116.20 ------=_NextPart_000_004A_01CAD69F.980D40F0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear LF, I would very much support Jay's point, and I favour the current freque= ncy allocations for the split TA and Eu slots. Scott, how about if you traded in DCF39 for HGA22? It's slightly stron= ger (100 kW) and a bit further east (Budapest). The idle carrier sits= on 135.43, so by tuning to say 135.2 USB, you could (just barely) fit= all three in the passband. Best wishes, Markus (DF6NM) ----- Original Message -----=20 From: jrusgrove@comcast.net=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Wednesday, April 07, 2010 7:04 PM Subject: Re: LF: VE7TIL Grabber and DCF39 Monitor back online Mike Several hundred Hz separation between the W-E and E-W T/A windows wo= uld be nice - the old 136.318 /=20 137.777 worked well. Since the EU stations have abandoned 136.318 an= d moved to 137.777 it has been=20 impossible to receive them here in the northeast US due to local act= ivity. This has been pointed out=20 over the past few years...to almost no avail. I'd suggest windows separation such that an average cw filter can se= parate the two. Would sure be=20 nice to get back to looking for EU stations on 137 kHz! Jay W1VD WD2XNS WE2XGR/2 ----- Original Message -----=20 From: "Mike Dennison" To: Sent: Wednesday, April 07, 2010 11:43 AM Subject: Re: LF: VE7TIL Grabber and DCF39 Monitor back online > Scott, > > I do not have direct experience of running a grabber, but it seems= to > me that your main difficulty is that, even with a SSB bandwidth on > your LF receiver, you cannot cover DCF39 and the Eu DX window at= the > same time. > > The window at 136.318kHz was chosen to facilitate transatlantic te= sts > and two-way QSOs so that the west-east traffic around 137.777kHz= did > not clash with east-west traffic. As I recall, there were QRM issu= es > in Canada or the USA which meant that this was optimum. I do not= know > whether these are still relevant. > > I suggest an alternative west-east DX window just below the QRSS3 > part of the band, ie around 137.650kHz. Provided this is not used= for > daytime transmissions when QRSS3 activity is expected, it should= not > cause QRM to other users. I would still suggest using the lower pa= rt > of the band for skeds. > > This would enable you and others to add an Argo window that is wit= hin > the receiver's passband, but avoids the need for Eu stations to QR= M > the 137.777 area in order to check reception on most grabbers. > > Does this help? > > What to other users of 137kHz think? > > Mike > =3D=3D=3D=3D > > > >> If you or anyone can assist me in getting the equipment or expert= ise >> to get this setup I can commit to have it operational from a low= noise >> site for the next DX season. >> >> I just welcomed my first child within the last year to the world= so >> time is limited but my passion for LF is GREAT ;-) >> >> 73 Scott >> >> >> >> >> >> >> Mike Dennison wrote: >> > OK, all understood. Thanks for considering the idea. >> > >> > 73 de Mike >> > =3D=3D=3D=3D=3D=3D=3D=3D >> > >> > >> >> Unfortunately as the main LF RX is tuned to allow reception of= the >> >> upper end of the band 137778ish and DCF39 the EU DX window is= not >> >> within my passband. >> >> >> >> I hope to have a SDR online sometime in the future which would >> >> resolve this. >> >> >> >> 73, >> >> Scott >> >> >> >> >> >> >> >> >> >> Mike Dennison wrote: >> >> >> >>> This is good news, Scott. Is there any chance of one of your >> >>> grabbers being tuned to the EU DX Tx window of 136.318kHz? >> >>> >> >>> Mike. G3XDV >> >>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D >> >>> >> >>> >> >>> >> >>>> I'm pleased to report the noise problem has been resolved an= d >> >>>> most of the renovations here are complete. The 2200m grabbe= r and >> >>>> DCF39 monitor are back online. >> >>>> >> >>>> 73 Scott >> >>>> VE7TIL >> >>>> http://www3.telus.net/sthed/argo/ >> >>>> >> >>>> >> >>>> >> >>>> >> >>>> >> >>>> >> >>>> >> >>> >> >>> >> >>> >> >>> >> >> >> > >> > >> > >> > >> > >> >> > > >=20 ------=_NextPart_000_004A_01CAD69F.980D40F0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Dear LF,
 
I would very much support Jay's point= , and=20 I favour the current frequency allocations for the split TA and= Eu=20 slots.
 
Scott, how about if you traded in DCF= 39 for HGA22?=20 It's slightly stronger (100 kW) and a bit further east (Buda= pest). The=20 idle carrier sits on 135.43, so by tuning to say 135.2 USB, you= could (just=20 barely) fit all three in the passband.
 
Best wishes,
Markus (DF6NM)
 
----- Original Message -----
Sent: Wednesday, April 07, 20= 10 7:04=20 PM
Subject: Re: LF: VE7TIL Grabb= er and DCF39=20 Monitor back online

Mike

Several hundred Hz separation betwee= n the=20 W-E and E-W T/A windows would be nice - the old 136.318 /
137.77= 7 worked=20 well. Since the EU stations have abandoned 136.318 and moved to 137.= 777 it has=20 been
impossible to receive them here in the northeast US due to= local=20 activity. This has been pointed out
over the past few years...to= almost no=20 avail.

I'd suggest windows separation such that an average cw= filter=20 can separate the two. Would sure be
nice to get back to looking= for EU=20 stations on 137 kHz!

Jay W1VD  WD2XNS =20 WE2XGR/2


----- Original Message -----
From: "Mike Den= nison"=20 <mike.dennison@= ntlworld.com>
To:=20 <rsgb_lf_grou= p@blacksheep.org>
Sent:=20 Wednesday, April 07, 2010 11:43 AM
Subject: Re: LF: VE7TIL Grabbe= r and=20 DCF39 Monitor back online


> Scott,
>
> I= do not have=20 direct experience of running a grabber, but it seems to
> me= that your=20 main difficulty is that, even with a SSB bandwidth on
> your= LF=20 receiver, you cannot cover DCF39 and the Eu DX window at the
>= same=20 time.
>
> The window at 136.318kHz was chosen to facilit= ate=20 transatlantic tests
> and two-way QSOs so that the west-east= traffic=20 around 137.777kHz did
> not clash with east-west traffic. As= I recall,=20 there were QRM issues
> in Canada or the USA which meant that= this was=20 optimum. I do not know
> whether these are still=20 relevant.
>
> I suggest an alternative west-east DX wind= ow just=20 below the QRSS3
> part of the band, ie around 137.650kHz. Prov= ided this=20 is not used for
> daytime transmissions when QRSS3 activity is= expected,=20 it should not
> cause QRM to other users. I would still sugges= t using=20 the lower part
> of the band for skeds.
>
> This= would=20 enable you and others to add an Argo window that is within
>= the=20 receiver's passband, but avoids the need for Eu stations to QRM
&= gt; the=20 137.777 area in order to check reception on most grabbers.
>>=20 Does this help?
>
> What to other users of 137kHz=20 think?
>
> Mike
> =3D=3D=3D=3D
>
>
= >
>>=20 If you or anyone can assist me in getting the equipment or=20 expertise
>> to get this setup I can commit to have it oper= ational=20 from a low noise
>> site for the next DX=20 season.
>>
>> I just welcomed my first child withi= n the last=20 year to the world so
>> time is limited but my passion for= LF is=20 GREAT ;-)
>>
>> 73=20 Scott
>>
>>
>>
>>
>>>>
>>=20 Mike Dennison wrote:
>> > OK, all understood. Thanks for= =20 considering the idea.
>> >
>> > 73 de Mike>>=20 > =3D=3D=3D=3D=3D=3D=3D=3D
>> >
>> >
&= gt;> >>=20 Unfortunately as the main LF RX is tuned to allow reception of the>>=20 >> upper end of the band 137778ish and DCF39 the EU DX window= is=20 not
>> >> within my passband.
>> >>>>=20 >> I hope to have a SDR online sometime in the future which=20 would
>> >> resolve this.
>> >>
>= ;>=20 >> 73,
>> >> Scott
>> >>
>= >=20 >>
>> >>
>> >>
>> >&= gt; Mike=20 Dennison wrote:
>> >>
>> >>> This= is good=20 news, Scott. Is there any chance of one of your
>> >>= >=20 grabbers being tuned to the EU DX Tx window of 136.318kHz?
>&g= t;=20 >>>
>> >>> Mike. G3XDV
>> >&g= t;>=20 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>> >>>
>>= >>>
>>=20 >>>
>> >>>> I'm pleased to report the= noise=20 problem has been resolved and
>> >>>> most of= the=20 renovations here are complete.  The 2200m grabber and
>&g= t;=20 >>>> DCF39 monitor are back online.
>>=20 >>>>
>> >>>> 73 Scott
>>= =20 >>>> VE7TIL
>> >>>> http://www3.telus.net/sthed/argo/
>>=20 >>>>
>> >>>>
>>=20 >>>>
>> >>>>
>>=20 >>>>
>> >>>>
>>=20 >>>>
>> >>>
>> >>>>>=20 >>>
>> >>>
>> >>
>&g= t;=20 >
>> >
>> >
>> >
>>= =20 >
>>
>>
>
>
>=20


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