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=-2.2 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_50_60,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 t61HOwON014694 for ; Wed, 1 Jul 2015 19:24:58 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ZALiQ-0003TO-SJ for rs_out_1@blacksheep.org; Wed, 01 Jul 2015 18:22:30 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ZALiQ-0003TF-Hy for rsgb_lf_group@blacksheep.org; Wed, 01 Jul 2015 18:22:30 +0100 Received: from mail-wi0-f180.google.com ([209.85.212.180]) by relay1.thorcom.net with esmtps (TLSv1.2:AES128-GCM-SHA256:128) (Exim 4.85) (envelope-from ) id 1ZALiO-0005IM-QH for rsgb_lf_group@blacksheep.org; Wed, 01 Jul 2015 18:22:29 +0100 Received: by wiar9 with SMTP id r9so76380083wia.1 for ; Wed, 01 Jul 2015 10:22:27 -0700 (PDT) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=QHzOCEIoh4bc2p5l+RU8+Xy8YbOpmxVgRCB7j+yE0j8=; b=PoMEl/FtGuavDTSQG4RmAjrpns/bQkd5PkUqr0zADG98ZlKAYFeT+RCUBI8+cOQwx5 zEEfG/oNIZV5uKPyUmMSGVjI/5P1dRozJNw1xPV1Qih9cz6F7idixQ+ni7pjDYyoKCDD ywaekvkhiMX/TlMKzn6VApYYK4/W22lq7drIXrnBIW4MopgChh+ac2ODirNE06IZxhMG Q+Cf837Ddm2yuMAa5aYw4UtrDLCZjjnCsfNbqyiMb7DxOMIfMsSbzZUBKF5cMoGjYG9Y Jsf96EqWduBtZ4jNWeG2on+dJtPCS1JGs3F6MVjph6kIEsB+lPnVEfgYbWDSeizV9wnE ao3g== MIME-Version: 1.0 X-Received: by 10.194.206.65 with SMTP id lm1mr51124854wjc.117.1435771347678; Wed, 01 Jul 2015 10:22:27 -0700 (PDT) Received: by 10.28.28.7 with HTTP; Wed, 1 Jul 2015 10:22:27 -0700 (PDT) In-Reply-To: References: <7D577AEFBA43411C807FDDFBCF90CCC0@AGB> Date: Wed, 1 Jul 2015 18:22:27 +0100 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org X-Scan-Signature: 18c242620d7d7b91a1caf5740aa3e326 Subject: Re: LF: what causes this on wspr Content-Type: multipart/alternative; boundary=047d7b8739d2283bba0519d391d3 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: 3595 --047d7b8739d2283bba0519d391d3 Content-Type: text/plain; charset=UTF-8 Yep - I missed the fact it was over a minute long . The sidebands are 12Hz (not 8Hz as I said before) which seems a bit close for any synth instability. Nothing is that slow surely. So a bit of a mystery in that case. Still reckon it looks like CW though. Hard on -off keing generates a spectrum at harmonics of the clock frequency Andy On 1 July 2015 at 17:58, Graham wrote: > Hi Andy > > 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 > > 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 > *Sent:* Wednesday, July 01, 2015 5:33 PM > *To:* rsgb_lf_group@blacksheep.org > *Subject:* Re: LF: what causes this on wspr > > Fast CW ident perhaps ? > 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 >> >> This takes some doing ...... but how to do it ? >> >> G, >> > > --047d7b8739d2283bba0519d391d3 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Yep - I missed the fact it was over a minute long .
Th= e sidebands are 12Hz (not 8Hz as I said before) which seems a bit close for= any synth instability.=C2=A0 Nothing is that slow surely.

So a bit of a mystery in that case. =C2=A0 =C2=A0Still reckon it l= ooks like CW though. =C2=A0 =C2=A0Hard on -off keing generates a spectrum a= t harmonics of the clock frequency


=
Andy

On 1 July 2015 at 17:58, Graham <g8fzk@= g8fzk.fsnet.co.uk> wrote:
<= u>
Hi Andy
=C2=A0
Problem there=C2=A0 is=C2=A0 it=C2=A0 lasts=C2=A0 , what=C2=A0 seems= =C2=A0=20 to=C2=A0 be=C2=A0 the=C2=A0 full=C2=A0 duration=C2=A0 of the=C2=A0 data=C2= =A0=20 phase=C2=A0 [ phase as=C2=A0 a change=C2=A0 from=C2=A0 cw=C2=A0 to data .. = etc=20 ]
=C2=A0
wspr=C2=A0 via a=C2=A0 ssb=C2=A0 rig ,=C2=A0 overdriving=C2=A0=20 usually=C2=A0 produces=C2=A0 , harmonic=C2=A0 side=C2=A0 bands ,=C2=A0=C2= =A0=20 1000=C2=A0 , 2000=C2=A0=C2=A0 Hz etc=C2=A0 Mains=C2=A0 Hum=C2=A0=20 50/100/150=C2=A0 etc=C2=A0
=C2=A0
The=C2=A0 power=C2=A0 distribution=C2=A0 looks like a=C2=A0 FM signal= =20 ,=C2=A0 that=C2=A0 would=C2=A0 also=C2=A0 account=C2=A0 for the=C2=A0=20 equal=C2=A0=C2=A0=C2=A0 distribution=C2=A0=C2=A0 about=C2=A0 the=C2=A0=20 centre=C2=A0 and the=C2=A0 extended=C2=A0 group=C2=A0 of=C2=A0 side=C2=A0= =20 bands=C2=A0 to=C2=A0 the=C2=A0 right ..
=C2=A0
I would=C2=A0 take=C2=A0=C2=A0 shot=C2=A0 at=C2=A0 a=C2=A0 kit=C2=A0= =20 using=C2=A0=C2=A0 either=C2=A0 a=C2=A0 PLL=C2=A0=C2=A0=C2=A0 or=C2=A0=C2=A0= =20 one=C2=A0 of the=C2=A0 clock=C2=A0 pulse=C2=A0 systems=C2=A0 .. with=C2=A0= =20 timing=C2=A0 jitter=C2=A0 ?
=C2=A0
73 -G,

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

Andy =C2=A0'jnt


On 1 July 2015 at 17:24, Graham <g8fzk@g8= fzk.fsnet.co.uk> wrote:
what causes this=C2=A0 on wspr
=C2=A0
This=C2=A0 takes=C2=A0 some=C2=A0 doing=C2=A0 ...... but=C2=A0 how= =C2=A0=20 to=C2=A0 do=C2=A0 it=C2=A0 ?
=C2=A0
G,


--047d7b8739d2283bba0519d391d3--