Return-Path: X-Spam-DCC: paranoid 1290; Body=4 Fuz1=4 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_50_60,HTML_MESSAGE,HTML_TINY_FONT,SPF_PASS 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 u2TGhxmT002003 for ; Tue, 29 Mar 2016 18:43:59 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1akwcF-0002Cg-7V for rs_out_1@blacksheep.org; Tue, 29 Mar 2016 17:35:39 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1akwcE-0002CM-Gi for rsgb_lf_group@blacksheep.org; Tue, 29 Mar 2016 17:35:38 +0100 Received: from mail-vk0-x235.google.com ([2607:f8b0:400c:c05::235]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.86) (envelope-from ) id 1akwc9-0000MC-Su for rsgb_lf_group@blacksheep.org; Tue, 29 Mar 2016 17:35:37 +0100 Received: by mail-vk0-x235.google.com with SMTP id e6so25751366vkh.2 for ; Tue, 29 Mar 2016 09:35:33 -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; bh=nTRZazmrB5+nN/XidGrT3FLSJGguI5tya+j1QFj5nEE=; b=fvA5QSkabEptkjdjUmBscD2bBq62PDuaL1SjIqE3Snwbi9JdzvZ6nE3iCF+4uVNgG1 gMDpO82e0srP2dyH193gp80YPdr2V9kW0rVfAWpLYplJCkgTNZYuuU8tBDpo23e/crsI e6Ms0FeWQKx9pZccY9ZNFGrrg9YkLsEdQDE0LS2O7DmZhGpQRugH+0nRAjJJ+fNY4tPE 2U3QQZzl0MIT1LnhN2t3vYrAWkG54D2+cp8UOu6U/ObeYNfhteqGHNSMFILKIRYumSz4 6+5uTHO5VcF8zJavAw3CxMYnG3JjZjoHY7KX+5tXEA4ZlrNm9c0/Plas2FlJ2dFrX+aj ZYew== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to; bh=nTRZazmrB5+nN/XidGrT3FLSJGguI5tya+j1QFj5nEE=; b=XKa2RR4zXiu09ygyQECOKM3f/lYNb1D7PVH0V01e52ftCZMuVJ6Zj8XRAlrp5c+wKD xUYQKDJXgYZfD5nASaWa/5IkSJipJJKelF6hPAWtO4g1v6c9KdVNZJMUlo3ZPAYJAKIV A+ZVGGMev6bFZgZk+A60PlnZ9iBwxkKGvN859jae+zL7B5OHl1PvicnaGsL6vT63o6oD aZosf8rXSkKEJCYe9haDyMa3N9QXKnfPCWjD/YoY+ZWLIa2okZ9pYesQFaJkv1laT1mf 6r9x3iaqLkWFMt6q3fy4UAHuLY8JrbRtKjVvadlXuC0oShLn8LLdGzq5KRlH76Y/eAoF yl0g== X-Gm-Message-State: AD7BkJIk6g8TX9Sxfbumu/IhOCy3JCqHpM6fK73kY3bxXha/e6PuFjJNqAsZkrAkZGYfcaq+RFvCMwzP31EUaQ== MIME-Version: 1.0 X-Received: by 10.176.64.41 with SMTP id h38mr1751849uad.106.1459269327384; Tue, 29 Mar 2016 09:35:27 -0700 (PDT) Received: by 10.159.32.198 with HTTP; Tue, 29 Mar 2016 09:35:27 -0700 (PDT) In-Reply-To: References: <094E96255B2D4EE9886317C115E7E5D9@Clemens0811> Date: Tue, 29 Mar 2016 17:35:27 +0100 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org X-Scan-Signature: faff3fbcd1eb34d6ed6e9cedf6e974d0 Subject: Re: [rsgb_lf_group] RE: Cheap and nasty sources - was LF: DK7FC WSPR bad quality problem Content-Type: multipart/alternative; boundary=94eb2c1246d8e3f542052f329d65 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 10.1.3.11 Status: O X-Status: X-Keywords: X-UID: 7514 --94eb2c1246d8e3f542052f329d65 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Course. it occurred I didn't actually answer your question: The standard PICs have maximum Fosc of 20MHz, so Fclk =3D 5MHz. Not really suitable for any direct generation task aboive a few kHz Its really not worth trying to do a third rate bodged job just to try to get a source on the cheap. I know we're radio *Amateurs*, trying to do things simply, but nice modern synthesizer chips, even Fract-n ones, cost peanuts these days, so there is little point even trying to do some makeshift cack-handed thing that generates sidebands and spurii all over the place. Andy G4JNT On 29 March 2016 at 13:54, Graham wrote: > Andy > PIC > > If the execute times of PIC routines are not subject to IRQ ..or > if they are , could be in a predictable pattern , assuming nothing else > was 'going on' > > Then , the PIC alone would produce a reasonable drive [ square wave > or pulse] for a class e/d logic divider chain , there being no > need [lf/mf] for the ppl or dds ? > > how fast , will a pic run? > > 73-G, > > > > *From:* Andy Talbot > *Sent:* Sunday, March 27, 2016 9:04 PM > *To:* rsgb_lf_group@yahoogroups.co.uk > *Cc:* rsgb_lf_group@blacksheep.org > *Subject:* Re: [rsgb_lf_group] RE: Cheap and nasty sources - was LF: > DK7FC WSPR bad quality problem > > If you are referring to the close spaced lines making up the spectrum of > the two strong signals, from teh plot you show they appear to be about > 1.5Hz spacing. This is the WSPR symbol rate (actually 1.465Hz) so the > lines visible are the natural sidebands from the WSPR waveform. > > I'd be surprised if an DDS itself were generating 100Hz sidebands on its > own. Especially a more modern one like the AD9859. Even the venerabl= e > AD9850 doesn't generate stuff only 40dB down. So I'd still look for > other means of 100Hz leakage. Perhaps getting onto the reference sourc= e. > I assume the two stations both reporting 100Hz sidebands are using > identical generating hardware ? > > I use an AD9852 for WSPR and generationg MFSK modes generally, a device > perhaps bit a bit older than the AD9859, but the same family, and it is > certainly clean down to at least -60dBc. When driven from a higher cloc= k > frequency, better still. > > Andy G4JNT > > > On 27 March 2016 at 19:47, 'Clemens Paul' cpaul@gmx.net [rsgb_lf_group] < > rsgb_lf_group@yahoogroups.co.uk> wrote: > >> >> >> Hello all, >> >> I've been watching the 100Hz sideband WSPR multi-decodes also from the >> other two strong stations on MW, >> DH5RAE and DB0ABR.They are located about 65km from me and generate S9++d= B >> signals here. >> The deoded sidebands are also about 40dB down. >> DB0ABR has tried a different power supply to no avail and both believe >> that the DDS synthesizer is the culprit. >> It is a AD9859,see >> http://www.dj0abr.de/index_english.html >> I have added a perseus screenshot with a bin width of 0.24Hz showing >> strange lines in their signal. >> I'm not sure if this is the DDS spectrum what we see here. >> >> 73 >> Clemens >> DL4RAJ >> >> >-----Original Message----- >> >From: owner-rsgb_lf_group@blacksheep.org >> >[mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Andy Talbot >> >Sent: Sunday, March 27, 2016 8:06 PM >> >To: rsgb_lf_group@blacksheep.org; rsgb_lf_group@yahoogroups.co.uk >> >Subject: Cheap and nasty sources - was LF: DK7FC WSPR bad >> >quality problem >> > >> >It is unfortunate these cheap and simple low power solutions >> >have come-about at all. The originators who worked out how >> >to generate a few milliwatts of Rf from very non-purpose >> >designed hardware presumably never anticipated that eh great >> >masses would end up connecting this unsuitable kit to high >> >power amplifiers. I hope they only ever anticipated their >> >being used for very low power uses. >> > >> >As for the R-PI, that really does look like a bad way of >> >generating narrow band RF. I don't know the details of its >> >internal hardare, but strongly suspect that it uses a >> >jittering Fract-N route to generating arbitrary frequencies. >> > Again, fine for a few milliwats of test signal, but >> >certainly not for amplification to hundreds of milliwatts. >> > >> >If you want a decent high power source, use a DDS chip or a >> >modern Fract-N synthesizer like the LMX2541. That device has >> >an internal VCO and an output divider that allows it to >> >generate as low as 35MHz - and then any external CMSO divider >> >will allow you to go lower. And they are CLEAN - especially >> >so when divided down to LF / HF >> > >> > >> >Andy G4JNT >> > >> > >> > >> > >> >On 27 March 2016 at 18:14, Graham wrote: >> > >> > >> > >> > Andy, >> > >> > This time its not really Stefan's fault :-,) >> > >> > This is a problem , using the raspberry PI , the Pi >> >processor uses interrupts, which, cause the execution time >> >of the timing loops to vary slightly , >> > the 'small' time variations , produce side bands . >> > >> > This was evident during the development of a R-PI >> >routine for sending Opera , as the R-Pi support >> >documentation is not particularly comprehensive, its 'not' >> >possible to fully address the i/o functions and as such >> >there exists a conflict with higher order irq requests . >> >Producing seemingly random widening of the spectrum, >> >depending on the irq deployments. >> > >> > Ie the pulse train suffers from timing jitter >> > >> > The alterative of the U3 beacon key'er , driving >> >the DDS 'oscillator' is a more elegant solution, but as >> >noted by Andy [rad-com] some time back, the later U3 with >> >the PPL suffers from settling time issues , when >> >commanded with , step frequency changes. these sever to >> >produce sidebands , at the step changes. >> > >> > 73-G, >> > >> > >> > From: F6CNI - Andy - JN19QB >> > Sent: Saturday, March 26, 2016 8:36 PM >> > To: RSGB LF Group >> > Subject: LF: DK7FC WSPR bad quality problem >> > >> > >> > Hello Stefan. >> > >> > >> > >> > I am sorry, but this evening you have a very poor >> >quality WSPR signal on MF with many splatters, I think it is >> >perhaps due to an overload TX AF level. >> > >> > >> > >> > That is not in phase with the normal ham spirit. So, >> >please be kind to stop now your transmission and correct this problem. >> > >> > >> > >> > On the way, can you say honnestly if your power is not >> >over the legal limit ? >> > >> > >> > >> > Sincerly yours and my best 73 de Andy. >> > >> > >> > >> > P.S. >> > >> > >> > >> > Have a look below at some reports last hour showing the >> >problem : >> > >> > >> > >> > >> > >> >2016-03-26 19:00 >> > >> >DK7FC >> > >> >0.475683 >> > >> >+12 >> > >> >0 >> > >> >JN49ik >> > >> >1 >> > >> >PI4THT >> > >> >JO32kf >> > >> >336 >> > >> >338 >> > >> >2016-03-26 19:00 >> > >> >DK7FC >> > >> >0.475783 >> > >> >-25 >> > >> >0 >> > >> >JN49ik >> > >> >1 >> > >> >PI4THT >> > >> >JO32kf >> > >> >336 >> > >> >338 >> > >> >2016-03-26 18:50 >> > >> >DK7FC >> > >> >0.475783 >> > >> >-23 >> > >> >0 >> > >> >JN49ik >> > >> >1 >> > >> >PE1RKT >> > >> >JO22fb >> > >> >418 >> > >> >316 >> > >> >2016-03-26 18:50 >> > >> >DK7FC >> > >> >0.475683 >> > >> >+14 >> > >> >1 >> > >> >JN49ik >> > >> >1 >> > >> >PE1RKT >> > >> >JO22fb >> > >> >418 >> > >> >316 >> > >> >2016-03-26 18:40 >> > >> >DK7FC >> > >> >0.475683 >> > >> >+12 >> > >> >0 >> > >> >JN49ik >> > >> >1 >> > >> >LA8AV >> > >> >JO59cs >> > >> >1153 >> > >> >4 >> > >> >2016-03-26 18:40 >> > >> >DK7FC >> > >> >0.475783 >> > >> >-24 >> > >> >0 >> > >> >JN49ik >> > >> >1 >> > >> >LA8AV >> > >> >JO59cs >> > >> >1153 >> > >> >4 >> > >> >2016-03-26 18:50 >> > >> >DK7FC >> > >> >0.475783 >> > >> >-28 >> > >> >0 >> > >> >JN49ik >> > >> >1 >> > >> >LA3JJ >> > >> >JO59bh >> > >> >1102 >> > >> >4 >> > >> >2016-03-26 18:50 >> > >> >DK7FC >> > >> >0.475683 >> > >> >+10 >> > >> >0 >> > >> >JN49ik >> > >> >1 >> > >> >LA3JJ >> > >> >JO59bh >> > >> >1102 >> > >> >4 >> > >> >2016-03-26 18:40 >> > >> >DK7FC >> > >> >0.475780 >> > >> >-28 >> > >> >1 >> > >> >JN49ik >> > >> >1 >> > >> >G3KEV >> > >> >IO94sh >> > >> >829 >> > >> >314 >> > >> >2016-03-26 18:40 >> > >> >DK7FC >> > >> >0.475679 >> > >> >+10 >> > >> >0 >> > >> >JN49ik >> > >> >1 >> > >> >G3KEV >> > >> >IO94sh >> > >> >829 >> > >> >314 >> > >> >2016-03-26 19:10 >> > >> >DK7FC >> > >> >0.475682 >> > >> >+13 >> > >> >0 >> > >> >JN49ik >> > >> >1 >> > >> >F6CNI >> > >> >JN19qb >> > >> >389 >> > >> >266 >> > >> >2016-03-26 19:10 >> > >> >DK7FC >> > >> >0.475782 >> > >> >-27 >> > >> >1 >> > >> >JN49ik >> > >> >1 >> > >> >F6CNI >> > >> >JN19qb >> > >> >389 >> > >> >266 >> > >> >2016-03-26 18:30 >> > >> >DK7FC >> > >> >0.475682 >> > >> >+15 >> > >> >0 >> > >> >JN49ik >> > >> >1 >> > >> >F5WK >> > >> >JN18hp >> > >> >452 >> > >> >261 >> > >> >2016-03-26 18:30 >> > >> >DK7FC >> > >> >0.475782 >> > >> >-22 >> > >> >0 >> > >> >JN49ik >> > >> >1 >> > >> >F5WK >> > >> >JN18hp >> > >> >452 >> > >> >261 >> > >> >2016-03-26 18:00 >> > >> >DK7FC >> > >> >0.475680 >> > >> >+19 >> > >> >0 >> > >> >JN49ik >> > >> >1 >> > >> >DL6II >> > >> >JO30nx >> > >> >205 >> > >> >327 >> > >> >2016-03-26 18:00 >> > >> >DK7FC >> > >> >0.475780 >> > >> >-18 >> > >> >0 >> > >> >JN49ik >> > >> >1 >> > >> >DL6II >> > >> >JO30nx >> > >> >205 >> > >> >327 >> > >> >2016-03-26 18:50 >> > >> >DK7FC >> > >> >0.475682 >> > >> >+17 >> > >> >0 >> > >> >JN49ik >> > >> >1 >> > >> >DL4RAJ/2 >> > >> >JN68kj >> > >> >326 >> > >> >109 >> > >> >2016-03-26 18:50 >> > >> >DK7FC >> > >> >0.475782 >> > >> >-22 >> > >> >0 >> > >> >JN49ik >> > >> >1 >> > >> >DL4RAJ/2 >> > >> >JN68kj >> > >> >326 >> > >> >109 >> > >> > >> > >> > >> > >> __._,_.___ >> ------------------------------ >> Posted by: "Clemens Paul" >> ------------------------------ >> Reply via web post >> >> =E2=80=A2 Reply to sender >> >> =E2=80=A2 Reply to group >> >> =E2=80=A2 Start a new topic >> >> =E2=80=A2 Messages in this topic >> >> (2) >> Visit Your Group >> >> >> - New Members >> >> 1 >> >> [image: Yahoo! Groups] >> >> =E2=80=A2 Privacy >> =E2=80=A2 Unsubscribe >> =E2= =80=A2 Terms >> of Use >> >> . >> >> __,_._,___ >> > > --94eb2c1246d8e3f542052f329d65 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Course. it occurred I didn't actually answer your= question:

The standard PICs have maximum Fosc of = 20MHz, so Fclk =3D 5MHz.=C2=A0 Not really suitable for any direct generatio= n task aboive a few kHz

Its really not worth tryin= g to do a third rate bodged job just to try to get a source on the cheap.= =C2=A0 I know we're radio Amateurs, trying to= do things simply, but nice modern synthesizer chips, even Fract-n ones, = =C2=A0cost peanuts these days, so there is little point even=C2=A0trying to= do some makeshift cack-handed thing that generates sidebands and spurii al= l over the place.

Andy=C2=A0 G4JNT

On 29 March 2016 at 13:54, = Graham <g8fzk@g8fzk.fsnet.co.uk> wrote:
Andy > PIC
=C2=A0
If the=C2=A0 execute=C2=A0 times=C2=A0 of PIC=C2=A0 routines=C2=A0 are= =20 not=C2=A0 subject to=C2=A0=C2=A0 IRQ=C2=A0 ..or if they are , could be=C2= =A0 in=20 a predictable pattern , assuming=C2=A0 nothing else was 'going on' = =C2=A0
=C2=A0
Then , the=C2=A0 PIC alone=C2=A0 would=C2=A0 produce a reasonable=20 drive=C2=A0 [ square=C2=A0 wave or=C2=A0 pulse] =C2=A0 for=C2=A0 a=C2=A0=C2= =A0=20 class e/d=C2=A0 logic divider=C2=A0 chain , there=C2=A0 being=C2=A0 no=C2= =A0=20 need=C2=A0 [lf/mf]=C2=A0=C2=A0 for the=C2=A0 ppl or dds ?
=C2=A0
how fast , will=C2=A0 a=C2=A0 pic run?
=C2=A0
73-G,
=C2=A0

=C2=A0

If you are referring to the close spaced lines making up t= he=20 spectrum of the two strong signals, from teh plot you show they appear to b= e=20 about 1.5Hz spacing.=C2=A0 This is the WSPR symbol rate =C2=A0(actually 1.4= 65Hz)=20 so the lines visible are the natural sidebands from the WSPR waveform.=20

I'd be surprised if an DDS itself were generating 100Hz sidebands = on its=20 own. =C2=A0 Especially a more modern one like the AD9859. =C2=A0 =C2=A0Even= the=20 venerable AD9850 doesn't generate stuff only 40dB down. =C2=A0 =C2=A0So= I'd=20 still look for other means of 100Hz leakage. =C2=A0 Perhaps getting onto=20 =C2=A0the reference source. =C2=A0 =C2=A0 I assume the two stations both=20 reporting 100Hz sidebands are using identical generating hardware ?

I use an AD9852 for WSPR and generationg MFSK modes generally, a devic= e=20 perhaps bit a bit older than the AD9859, but the same family, and it is=20 certainly clean down to at least -60dBc. =C2=A0 When driven from a higher c= lock=20 frequency, better still.

Andy =C2=A0G4JNT


On 27 March 2016 at 19:47, 'Clemens Paul'= ; cpaul@gmx.net [rsg= b_lf_group] <rsgb_lf_group@yahoogroups.co.uk> = wrote:
=C2=A0=20

Hello all,

I've been watching the 100Hz sideband WSPR multi= -decodes=20 also from the other two strong stations on MW,
DH5RAE and DB0ABR.They = are=20 located about 65km from me and generate S9++dB signals here.
The deode= d=20 sidebands are also about 40dB down.
DB0ABR has tried a different power= =20 supply to no avail and both believe that the DDS synthesizer is the=20 culprit.
It is a AD9859,see
http://www.dj0abr.de/index_english.html<= br>I have added a=20 perseus screenshot with a bin width of 0.24Hz showing strange lines in th= eir=20 signal.
I'm not sure if this is the DDS spectrum what we see=20 here.

73
Clemens
DL4RAJ

>-----Original=20 Message-----
>From: owner-rsgb_lf_group@blacksheep.org
>[ma= ilto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Andy=20 Talbot
>Sent: Sunday, March 27, 2016 8:06 PM
>To: rsgb_lf_group@blacks= heep.org; rsgb_lf_group@yahoogroups.co.uk
>Subject: Cheap and=20 nasty sources - was LF: DK7FC WSPR bad
>quality=20 problem
>
>It is unfortunate these cheap and simple low power= =20 solutions
>have come-about at all. The originators who worked out = how=20
>to generate a few milliwatts of Rf from very non-purpose=20
>designed hardware presumably never anticipated that eh great=20
>masses would end up connecting this unsuitable kit to high=20
>power amplifiers. I hope they only ever anticipated their=20
>being used for very low power uses.
>
>As for the R-P= I,=20 that really does look like a bad way of
>generating narrow band RF= . I=20 don't know the details of its
>internal hardare, but strongly = suspect=20 that it uses a
>jittering Fract-N route to generating arbitrary=20 frequencies.
> Again, fine for a few milliwats of test signal, but= =20
>certainly not for amplification to hundreds of=20 milliwatts.
>
>If you want a decent high power source, use a = DDS=20 chip or a
>modern Fract-N synthesizer like the LMX2541. That devic= e has=20
>an internal VCO and an output divider that allows it to=20
>generate as low as 35MHz - and then any external CMSO divider=20
>will allow you to go lower. And they are CLEAN - especially
&= gt;so=20 when divided down to LF / HF
>
>
>Andy=20 G4JNT
>
>
>
>
>On 27 March 2016 at 18:14, G= raham=20 <g8fzk@g8= fzk.fsnet.co.uk> wrote:
>
>
>=20
> Andy,
>
> This time its not really Stefan's fau= lt=20 :-,)
>
> This is a problem , using the raspberry PI , the Pi= =20
>processor uses interrupts, which, cause the execution time
&g= t;of=20 the timing loops to vary slightly ,
> the 'small' time vari= ations ,=20 produce side bands .
>
> This was evident during the develop= ment=20 of a R-PI
>routine for sending Opera , as the R-Pi support=20
>documentation is not particularly comprehensive, its 'not'= ;=20
>possible to fully address the i/o functions and as such
>t= here=20 exists a conflict with higher order irq requests .
>Producing seem= ingly=20 random widening of the spectrum,
>depending on the irq deployments= .=20
>
> Ie the pulse train suffers from timing jitter
>= =20
> The alterative of the U3 beacon key'er , driving
>the= DDS=20 'oscillator' is a more elegant solution, but as
>noted by = Andy=20 [rad-com] some time back, the later U3 with
>the PPL suffers from= =20 settling time issues , when
>commanded with , step frequency chang= es.=20 these sever to
>produce sidebands , at the step changes.
>= =20
> 73-G,
>
>
> From: F6CNI - Andy - JN19QB=20 <mailto:f6cni@ora= nge.fr>
> Sent: Saturday, March 26, 2016=20 8:36 PM
> To: RSGB LF Group <mailto:rsgb_lf_group@blacksheep.org> =
> Subject: LF: DK7FC=20 WSPR bad quality problem
>
>
> Hello Stefan.
>>=20
>
> I am sorry, but this evening you have a very poor=20
>quality WSPR signal on MF with many splatters, I think it is=20
>perhaps due to an overload TX AF level.
>
>=20
>
> That is not in phase with the normal ham spirit. So,=20
>please be kind to stop now your transmission and correct this=20 problem.
>
>
>
> On the way, can you say honnest= ly if=20 your power is not
>over the legal limit ?
>
>=20
>
> Sincerly yours and my best 73 de Andy.
>
>= =20
>
> P.S.
>
>
>
> Have a look below= at=20 some reports last hour showing the
>problem :
>
>=20
>
>
>
>2016-03-26 19:00
>
>DK7FC= =20
>
>0.475683
>
>+12
>
>0=20
>
>JN49ik
>
>1
>
>PI4THT=20
>
>JO32kf
>
>336
>
>338=20
>
>2016-03-26 19:00
>
>DK7FC=20
>
>0.475783
>
>-25
>
>0=20
>
>JN49ik
>
>1
>
>PI4THT=20
>
>JO32kf
>
>336=20
>
>338
>
>2016-03-26 18:50
>
>DK7FC= =20
>
>0.475783
>
>-23
>
>0=20
>
>JN49ik
>
>1
>
>PE1RKT=20
>
>JO22fb
>
>418
>
>316=20
>
>2016-03-26 18:50
>
>DK7FC=20
>
>0.475683
>
>+14
>
>1=20
>
>JN49ik
>
>1
>
>PE1RKT=20
>
>JO22fb
>
>418=20
>
>316
>
>2016-03-26 18:40
>
>DK7FC= =20
>
>0.475683
>
>+12
>
>0=20
>
>JN49ik
>
>1
>
>LA8AV=20
>
>JO59cs
>
>1153
>
>4=20
>
>2016-03-26 18:40
>
>DK7FC=20
>
>0.475783
>
>-24
>
>0=20
>
>JN49ik
>
>1
>
>LA8AV=20
>
>JO59cs
>
>1153
>
>4=20
>
>2016-03-26 18:50
>
>DK7FC=20
>
>0.475783
>
>-28
>
>0=20
>
>JN49ik
>
>1
>
>LA3JJ=20
>
>JO59bh
>
>1102
>
>4=20
>
>2016-03-26 18:50
>
>DK7FC=20
>
>0.475683
>
>+10
>
>0=20
>
>JN49ik
>
>1
>
>LA3JJ=20
>
>JO59bh
>
>1102
>
>4=20
>
>2016-03-26 18:40
>
>DK7FC=20
>
>0.475780
>
>-28
>
>1=20
>
>JN49ik
>
>1
>
>G3KEV=20
>
>IO94sh
>
>829
>
>314=20
>
>2016-03-26 18:40
>
>DK7FC=20
>
>0.475679
>
>+10
>
>0=20
>
>JN49ik
>
>1
>
>G3KEV=20
>
>IO94sh
>
>829
>
>314=20
>
>2016-03-26 19:10
>
>DK7FC=20
>
>0.475682
>
>+13
>
>0=20
>
>JN49ik
>
>1
>
>F6CNI=20
>
>JN19qb
>
>389
>
>266=20
>
>2016-03-26 19:10
>
>DK7FC=20
>
>0.475782
>
>-27
>
>1=20
>
>JN49ik
>
>1
>
>F6CNI=20
>
>JN19qb
>
>389
>
>266=20
>
>2016-03-26 18:30
>
>DK7FC=20
>
>0.475682
>
>+15
>
>0=20
>
>JN49ik
>
>1
>
>F5WK=20
>
>JN18hp
>
>452
>
>261=20
>
>2016-03-26 18:30
>
>DK7FC=20
>
>0.475782
>
>-22
>
>0=20
>
>JN49ik
>
>1
>
>F5WK=20
>
>JN18hp
>
>452
>
>261=20
>
>2016-03-26 18:00
>
>DK7FC=20
>
>0.475680
>
>+19
>
>0=20
>
>JN49ik
>
>1
>
>DL6II=20
>
>JO30nx
>
>205
>
>327=20
>
>2016-03-26 18:00
>
>DK7FC=20
>
>0.475780
>
>-18
>
>0=20
>
>JN49ik
>
>1
>
>DL6II=20
>
>JO30nx
>
>205
>
>327=20
>
>2016-03-26 18:50
>
>DK7FC=20
>
>0.475682
>
>+17
>
>0=20
>
>JN49ik
>
>1
>
>DL4RAJ/2=20
>
>JN68kj
>
>326
>
>109=20
>
>2016-03-26 18:50
>
>DK7FC=20
>
>0.475782
>
>-22
>
>0=20
>
>JN49ik
>
>1
>
>DL4RAJ/2=20
>
>JN68kj
>
>326
>
>109
>>=20
>
>
>

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