Return-Path: Received: from rly-ma07.mx.aol.com (rly-ma07.mail.aol.com [172.20.116.51]) by air-ma03.mail.aol.com (v121_r5.5) with ESMTP id MAILINMA032-8bb4961e84210b; Mon, 05 Jan 2009 06:00:43 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-ma07.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINMA075-8bb4961e84210b; Mon, 05 Jan 2009 06:00:21 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LJn8P-0006Xc-Hs for rs_out_1@blacksheep.org; Mon, 05 Jan 2009 10:56:37 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LJn8N-0006XT-IZ for rsgb_lf_group@blacksheep.org; Mon, 05 Jan 2009 10:56:35 +0000 Received: from web28106.mail.ukl.yahoo.com ([217.146.182.126]) by relay3.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1LJn8M-0005gb-3C for rsgb_lf_group@blacksheep.org; Mon, 05 Jan 2009 10:56:34 +0000 Received: (qmail 7754 invoked by uid 60001); 5 Jan 2009 10:56:28 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.co.uk; h=X-YMail-OSG:Received:X-Mailer:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type:Message-ID; b=jvcfUbkJT2j5rKECUFJn1m/ZD1T4gaWfLWKDTkxPibJN06dTOqQUvWrURimtnIUh46wltlhAYJuKHp4ecSL3KEfXel8IRQBnaCL/VB0dclj8RIMlETGpp3tXz9y5nRR5HgjSodAMi7q0tfyNevKS2c2pXxorgXUMOcqkDt8Evqc=; X-YMail-OSG: cFSQzT4VM1mylSP2mDbeEMlGvvdYVgN5HMCdLbXkdr8.8CL3pIzo8rHbB.c3ilto79CP6PQsebZzkDBZvpoeSjssi3J7U4YRRgV60oxZYJI1Pf14L6_57t07OUDZta9tRnIFy8JElDBHG77TB08mHptMH7UYKaiTwyvbhvF47oMTBC5PGhVwjET3mpaF_V9_Q5GhsUtS0boSjdE40U_Rfw5ETnybmtwcGXcSI4xERu.VIA2TFDSBX06TFk7BzxHw7AoC2mU- Received: from [86.130.69.9] by web28106.mail.ukl.yahoo.com via HTTP; Mon, 05 Jan 2009 10:56:28 GMT X-Mailer: YahooMailWebService/0.7.260.1 Date: Mon, 5 Jan 2009 10:56:28 +0000 (GMT) From: M0FMT To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 Message-ID: <771929.7157.qm@web28106.mail.ukl.yahoo.com> DomainKey-Status: good (testing) Subject: Re: LF: Re: Silent majority Content-Type: multipart/alternative; boundary="0-1038329280-1231152988=:7157" 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_30_40,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-IP: 193.82.116.20 --0-1038329280-1231152988=:7157 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi John and LF =C2=A0 They say when you are trying to get out of a hole stop digging. =C2=A0 You are right of course from recent reading 50Hz BW for CW (ON/OFF Keying) i= s probably much lower than 12 WPM .... depressing isn't it? =C2=A0 http://www.w8ji.com/cw_bandwidth_described.htm http://www.eham.net/articles/16649 =C2=A0 To Warren My reference to SSTV was to take the argument of spectrum usage in our (UK a= llocation)=C2=A03kc/s bandwidth to an absurd level=C2=A0to make a point. We=20= need to be able to conduct two way real time QSOs on the band without one st= ation hogging the lot with a wide blocking beacon type transmission especial= ly when stations have to co-exist in close physical proximity. In the Home C= ounties we don't have the luxury of the wide open prairies of Canada and the= US between stations so some of us around here can have almost volts in our=20= antennas from neighbouring stations. I think I can hear the reply now, haven=E2=80=99t you guys heard of Hi Q ban= d pass filters in the antenna input to the RX. Yes and that=E2=80=99s where=20= my argument falls down, time to stop digging. =C2=A0 Personally however, I think I would prefer to hear the CW =E2=80=9Cthumps= =E2=80=9D that I could decode by ear than the unintelligible racket from a=20= =E2=80=9CDATA=E2=80=9D transmission.....ho hum. =C2=A0 73 de (depressed) petefmt =C2=A0 --- On Mon, 5/1/09, John P-G wrote: From: John P-G Subject: Re: LF: Re: Silent majority To: rsgb_lf_group@blacksheep.org Date: Monday, 5 January, 2009, 8:11 AM On Mon, 5 Jan 2009 02:36:56 +0000 (GMT) M0FMT wrote: > =C2=A0I will start the ball rolling by saying a BW no more than 50c/s. This will test the CW rise/fall time shaping of all these class d/e home made manual telegraphy transmitters.=20 It will also require that the CW operators remain below 12wpm. John =20 --0-1038329280-1231152988=:7157 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Hi John and LF
 
They say when you are trying to get out of a hole stop digging.
 
You are right of course from recent reading 50Hz BW for CW (ON/OFF= Keying) is probably much lower than 12 WPM .... depressing isn't it?
 
 
To Warren
My reference to SSTV was to take the argument of spectrum usage in= our (UK allocation) 3kc/s bandwidth to an absurd level to make a=20= point. We need to be able to conduct two way real time QSOs on the band with= out one station hogging the lot with a wide blocking beacon type transmissio= n especially when stations have to co-exist in close physical proximity. In=20= the Home Counties we don't have the luxury of the wide open prairies of Cana= da and the US between stations so some of us around here can have almost vol= ts in our antennas from neighbouring stations.
I think I can hear the reply now, haven=E2=80=99t you guys heard o= f Hi Q band pass filters in the antenna input to the RX. Yes and that=E2=80= =99s where my argument falls down, time to stop digging.
 
Personally however, I think I would prefer to hear the CW =E2=80= =9Cthumps=E2=80=9D that I could decode by ear than the unintelligible racket= from a =E2=80=9CDATA=E2=80=9D transmission.....ho hum.
 
73 de (depressed) petefmt
 

--- On Mon, 5/1/09, John P-G <gm4slv@sighthound.demon.co.u= k> wrote:
From: John P-G <gm4slv@sighthound.demon.co.uk>Subject: Re: LF: Re: Silent majority
To: rsgb_lf_group@blacksheep.orgDate: Monday, 5 January, 2009, 8:11 AM

On Mon, 5 Jan 2009 02:36=
:56 +0000 (GMT)
M0FMT <m0fmt@yahoo.co.uk> wrote:

>  I will start the ball rolling by saying a BW no more than 50c/s.

This will test the CW rise/fall time shaping of all these class
d/e home made manual telegraphy transmitters.=20

It will also require that the CW operators remain below 12wpm.

John

=20 --0-1038329280-1231152988=:7157--