Return-Path: X-Spam-DCC: paranoid 1102; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_MESSAGE autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id t61H2CtE014618 for ; Wed, 1 Jul 2015 19:02:13 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ZALL9-0003Id-Qd for rs_out_1@blacksheep.org; Wed, 01 Jul 2015 17:58:27 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ZALL9-0003IU-Es for rsgb_lf_group@blacksheep.org; Wed, 01 Jul 2015 17:58:27 +0100 Received: from smtpout3.wanadoo.co.uk ([80.12.242.59] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.85) (envelope-from ) id 1ZALL7-0005Bq-PM for rsgb_lf_group@blacksheep.org; Wed, 01 Jul 2015 17:58:26 +0100 Received: from AGB ([95.150.80.230]) by mwinf5d39 with ME id n4yR1q0034y94kF034yRx3; Wed, 01 Jul 2015 18:58:25 +0200 X-ME-Helo: AGB X-ME-Date: Wed, 01 Jul 2015 18:58:25 +0200 X-ME-IP: 95.150.80.230 Message-ID: From: "Graham" To: References: <7D577AEFBA43411C807FDDFBCF90CCC0@AGB> In-Reply-To: Date: Wed, 1 Jul 2015 17:58:24 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 X-Scan-Signature: b707651713bcd4ad9db4bb0f5d794041 Subject: Re: LF: what causes this on wspr Content-Type: multipart/alternative; boundary="----=_NextPart_000_0052_01D0B427.86A6B1A0" 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-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 3594 This is a multi-part message in MIME format. ------=_NextPart_000_0052_01D0B427.86A6B1A0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Andy=20 Problem there is it lasts , what seems to be the full duration = of the data phase [ phase as a change from cw to data .. etc ] wspr via a ssb rig , overdriving usually produces , harmonic = side bands , 1000 , 2000 Hz etc Mains Hum 50/100/150 etc =20 The power distribution looks like a FM signal , that would also = account for the equal distribution about the centre and the = extended group of side bands to the right .. I would take shot at a kit using either a PLL or one of = the clock pulse systems .. with timing jitter ? 73 -G, From: Andy Talbot=20 Sent: Wednesday, July 01, 2015 5:33 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: what causes this on wspr Fast CW ident perhaps ?=20 The spectral lines look to be about 8Hz apart so that makes it 10 WPM or = thereabouts Andy 'jnt On 1 July 2015 at 17:24, Graham wrote: what causes this on wspr=20 This takes some doing ...... but how to do it ? G, ------=_NextPart_000_0052_01D0B427.86A6B1A0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Hi Andy

Problem there is it lasts , what = seems =20 to be the full duration of the = data =20 phase [ phase as a change from cw to data = .. etc=20 ]

wspr via a ssb rig , overdriving =20 usually produces , harmonic side bands = , =20 1000 , 2000 Hz etc Mains Hum =20 50/100/150 etc

The power distribution looks like a FM = signal=20 , that would also account for the =20 equal distribution about the =20 centre and the extended group of = side =20 bands to the right ..

I would take shot at a = kit =20 using either a PLL = or =20 one of the clock pulse systems .. = with =20 timing jitter ?

73 -G,

From: Andy Talbot

Sent: Wednesday, July 01, 2015 5:33 PM

To: rsgb_lf_group@blacksheep.org= =20

Subject: Re: LF: what causes this on wspr

Fast CW ident perhaps ?=20

The spectral lines look to be about 8Hz apart so that makes it 10 = WPM or=20 thereabouts

Andy 'jnt

On 1 July 2015 at 17:24, Graham <g8fzk@g8fzk.fsnet.co.uk> wrote:

what causes this on wspr

This takes some doing ...... but = how =20 to do it ?

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