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[195.171.43.25]) by mx.google.com with ESMTP id jb14si5100430wic.3.2014.02.24.02.36.52 for ; Mon, 24 Feb 2014 02:36:52 -0800 (PST) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1WHsm1-0000lY-AQ for rs_out_1@blacksheep.org; Mon, 24 Feb 2014 10:28:33 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1WHsm0-0000lP-D5 for rsgb_lf_group@blacksheep.org; Mon, 24 Feb 2014 10:28:32 +0000 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1WHslx-00063f-2O for rsgb_lf_group@blacksheep.org; Mon, 24 Feb 2014 10:28:31 +0000 Received: from crusoe.iup.uni-heidelberg.de (crusoe.iup.uni-heidelberg.de [129.206.22.248]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id s1OASQL9002593 for ; Mon, 24 Feb 2014 11:28:26 +0100 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by crusoe.iup.uni-heidelberg.de (Postfix) with ESMTP id 6DC1CE0E2F for ; Mon, 24 Feb 2014 11:28:26 +0100 (CET) Message-ID: <530B1ECA.4070400@iup.uni-heidelberg.de> Date: Mon, 24 Feb 2014 11:28:26 +0100 From: schaefer User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <530A3920.9020308@iup.uni-heidelberg.de> <08C9605D129D408EA502F9E9CECE649A@F6CNI> <530A42EB.3070609@iup.uni-heidelberg.de> <03FB263F863E45048EC661050FE586EB@F6CNI> <530A477B.600@iup.uni-heidelberg.de> <530A6E86.9090805@iup.uni-heidelberg.de> In-Reply-To: <530A6E86.9090805@iup.uni-heidelberg.de> X-Spam-Score: -2.3 (--) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Thanks to all monitoring MF stations. There were decodes by 23 stations, best distance is G3XKR and the last decode was by DL-SWL :-) Later i will buy a lemon :-) 73, Stefan/DK7FC [...] Content analysis details: (-2.3 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [129.206.210.211 listed in list.dnswl.org] -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_REMOTE_IMAGE Message contains an external image X-Scan-Signature: a97e85425bd5b935375d0cdadd65abb2 Subject: Re: LF: Re: WSPR MF QRPPPPP by DK7FC ?? Content-Type: multipart/alternative; boundary="------------090603080307050203000104" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=HTML_30_40,HTML_MESSAGE, HTML_TAG_EXISTS_TBODY 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 This is a multi-part message in MIME format. --------------090603080307050203000104 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by relay2.uni-heidelberg.de id s1OASQL9002593 Thanks to all monitoring MF stations. There were decodes by 23 stations,=20 best distance is G3XKR and the last decode was by DL-SWL :-) Later i will buy a lemon :-) 73, Stefan/DK7FC 23 spots: Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az 2014-02-24 01:16 DK7FC 0.475685 -30 0 JN49ik 1 G3XKR=20 IO70ux 940 285 2014-02-23 21:44 DK7FC 0.475685 -27 0 JN49ik 1 F1JBB=20 IN95ot 817 244 2014-02-23 22:56 DK7FC 0.475685 -29 0 JN49ik 1 G0KTN=20 IO81ti 813 289 2014-02-23 18:36 DK7FC 0.475685 -28 0 JN49ik 1 G3XIZ=20 IO92ub 697 298 2014-02-23 18:44 DK7FC 0.475688 -28 0 JN49ik 1 G4KPX=20 JO02dj 675 302 2014-02-23 18:38 DK7FC 0.475685 -29 0 JN49ik 1 G6AVK=20 JO01ho 620 296 2014-02-23 22:00 DK7FC 0.475630 -24 0 JN49ik 1 G3TYB=20 JO01ii 605 294 2014-02-23 21:28 DK7FC 0.475684 -22 0 JN49ik 1 F59706=20 JN07th 574 248 2014-02-23 22:36 DK7FC 0.475686 -30 0 JN49ik 1 IW4DXW=20 JN64bw 563 151 2014-02-24 02:40 DK7FC 0.475689 -27 0 JN49ik 1 DF2FF=20 JO44th 546 6 2014-02-23 18:50 DK7FC 0.475685 -25 0 JN49ik 1 DG3LV=20 JO53gv 512 14 2014-02-23 17:54 DK7FC 0.475685 -28 0 JN49ik 1 F5WK=20 JN18hp 452 261 2014-02-23 20:14 DK7FC 0.475685 -29 0 JN49ik 1 PE1RKT=20 JO22fb 418 316 2014-02-23 18:36 DK7FC 0.475685 -25 0 JN49ik 1 F6CNI=20 JN19qb 389 266 2014-02-24 02:00 DK7FC 0.475685 -21 0 JN49ik 1=20 PA3ABK/2 JO21it 386 315 2014-02-23 18:56 DK7FC 0.475685 -23 0 JN49ik 1 DL-SWL=20 JO52hp 381 20 2014-02-23 18:22 DK7FC 0.475685 -24 0 JN49ik 1 PI4THT=20 JO32kf 336 338 2014-02-23 18:38 DK7FC 0.475690 -17 0 JN49ik 1 DL4YHF=20 JO42fd 302 357 2014-02-23 22:04 DK7FC 0.475685 -29 0 JN49ik 1 DF2JP=20 JO31jg 245 327 2014-02-23 17:38 DK7FC 0.475682 -26 0 JN49ik 1 F6ACU=20 JN38fc 222 229 2014-02-24 00:00 DK7FC 0.475693 -28 0 JN49ik 1 DB8UY=20 JN59tw 217 74 2014-02-23 17:36 DK7FC 0.475684 -23 0 JN49ik 1 DL1DBC=20 JO41bi 217 349 2014-02-23 20:52 DK7FC 0.475685 -8 0 JN49ik 1 DK2DB=20 JN48fw 58 198 Am 23.02.2014 22:56, schrieb schaefer: > OK, now that's the class-E version:=20 > https://dl.dropboxusercontent.com/u/19882028/MF/20140223_223105.jpg > > The PA input power is now 2.5V * 23mA =3D *58 mW*, so maybe *40 mW RF p= ower* > > The drain source voltage looks quite good, so i assume the efficiency=20 > is above 70%. Due to the low Q of the fixed inductors the result is=20 > however not as good as it could be. Anyway... > > I'll let it run over the night, and i will remove the 100 Ohm=20 > resistor, so the power will rise now and will become lower and lower=20 > until the battery is completely empty :-) Let's see who makes the last=20 > decode :-) > Actually i nice game for using empty batteries which have some rest=20 > energy. > > 73, Stefan/DK7FC > > > Am 23.02.2014 20:09, schrieb schaefer: >> Hello Andy, >> >> It is sunday so it is a bit harder to find a lemon if you don't have=20 >> one at home :-) Thus i'm still using the empty 9V battery, which has=20 >> 2V now again. The power consumption of the PA seem to have dropped.=20 >> Anyway the voltage across the 50 Ohm BNC jack rose! Seem the=20 >> efficiency is much better now :-) And the voltage form looks much=20 >> more sine like :-) >> >> 73, Stefan >> >> PS:. About the 1W, i'm not using K1JTs software to generate my WSPR=20 >> signal but the software by DF6NM. This has a fixed "message", i.e.=20 >> parameters. It is because WSPR-X is a "dial" software, so i would=20 >> have to use another VAC line if i want to use it. I already need 2=20 >> VACs for LF/MF WSPR RX. So just ignore the 1W. Normally it is not 1W=20 >> anyway :-) >> >> >> Am 23.02.2014 19:58, schrieb Andr=E9 Guy=E9: >>> HI, HI Stefan. >>> A nice image, but where is the lemon High voltage battery ???? >>> I wish you a lot of fun. On the way, can you correct your power. You=20 >>> sent 1 Watt / 30 dBm, that is a bit too much indeed ! HI >>> Andy. >>> *From:* schaefer >>> *Sent:* Sunday, February 23, 2014 7:50 PM >>> *To:* rsgb_lf_group@blacksheep.org=20 >>> >>> *Subject:* Re: LF: WSPR MF QRPPPPP by DK7FC ?? >>> Hello Andy, MF, >>> >>> Here is an image of what i have so far:=20 >>> https://dl.dropboxusercontent.com/u/19882028/MF/20140223_193945.jpg >>> I'm just playing arround, without having a schematic or=20 >>> calculations. But now i'm starting to add some elements to improve=20 >>> the efficiency. >>> >>> Maybe tomorrow i will transmit with a LEMON. Maybe some JT9 or WSQ=20 >>> QSO can be made with that ;-) >>> >>> 73, Stefan >>> >>> >>> >>> Am 23.02.2014 19:25, schrieb Andr=E9 Guy=E9: >>>> Ok Stefan, >>>> here hard to copy you because your TX frequency is not clear at=20 >>>> this moment. >>>> Please, what is the current intensity at the base of the antenna ? >>>> Andy. >>>> *From:* schaefer >>>> *Sent:* Sunday, February 23, 2014 7:08 PM >>>> *To:* rsgb_lf_group@blacksheep.org=20 >>>> >>>> *Subject:* LF: WSPR MF QRPPPPP by DK7FC ?? >>>> Hello all, >>>> >>>> You all know me as a QRP station :-) But today i want to run even=20 >>>> less power! >>>> >>>> While running in the sunny afternoon i got the idea to build a very=20 >>>> small and weak PA. After some playing arround it came to me that it=20 >>>> will be a class-E PA. The power supply should be a lemon battery,=20 >>>> i.e. a homemade galvanic element, maybe 2 in series! >>>> >>>> The desired RF power is arround 20...40 mW, at 2 V DC. And i'm=20 >>>> using a BS170=20 >>>> =20 >>>> MOSFET for that PA. The biggest part will be the BNC jack :-) >>>> >>>> So far i'm testing with an empty 9V battery and a 100 Ohm resistor=20 >>>> in series. I measured 2V and 35mA. But the PA is not yet aligned=20 >>>> for class E mode. Probably the efficiency is less than 50% in the=20 >>>> moment. >>>> >>>> Anyway several stations seem to copy me :-) >>>> >>>> More reporting stations are apprechiated, if you like to test your=20 >>>> sensitive RX :-) >>>> >>>> 73, Stefan/DK7FC >>>> >>>> PS: Later, i want to try to rectify some RF coming from AFN to my=20 >>>> antenna. It this is fed to a 10F gold cap and WSPR-2 in 33% ratio=20 >>>> is sent, maybe i can run that PA from the energy of AFN :-) >>>> >>>> >>>> >>>> --------------------------------------------------------------------= ---- >>>> =09 >>>> >>>> Ce courrier =E9lectronique ne contient aucun virus ou logiciel=20 >>>> malveillant parce que la protection Antivirus avast!=20 >>>> est active. >>>> >>>> >>> >>> >>> ---------------------------------------------------------------------= --- >>> =09 >>> >>> Ce courrier =E9lectronique ne contient aucun virus ou logiciel=20 >>> malveillant parce que la protection Antivirus avast!=20 >>> est active. >>> >>> --------------090603080307050203000104 Content-Type: text/html; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by relay2.uni-heidelberg.de id s1OASQL9002593 Thanks to all monitoring MF stations. There were decodes by 23 stations, best distance is G3XKR and the last decode was by DL-SWL :-)
Later i will buy a lemon :-)

73, Stefan/DK7FC

23 spots:

Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
=A02014-02-24 01:16=A0 =A0DK7FC=A0 =A00.475685=A0 =A0-30=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0G3XKR=A0 =A0IO70ux=A0 =A0940=A0 =A0285=A0
=A02014-02-23 21:44=A0 =A0DK7FC=A0 =A00.475685=A0 =A0-27=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0F1JBB=A0 =A0IN95ot=A0 =A0817=A0 =A0244=A0
=A02014-02-23 22:56=A0 =A0DK7FC=A0 =A00.475685=A0 =A0-29=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0G0KTN=A0 =A0IO81ti=A0 =A0813=A0 =A0289=A0
=A02014-02-23 18:36=A0 =A0DK7FC=A0 =A00.475685=A0 =A0-28=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0G3XIZ=A0 =A0IO92ub=A0 =A0697=A0 =A0298=A0
=A02014-02-23 18:44=A0 =A0DK7FC=A0 =A00.475688=A0 =A0-28=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0G4KPX=A0 =A0JO02dj=A0 =A0675=A0 =A0302=A0
=A02014-02-23 18:38=A0 =A0DK7FC=A0 =A00.475685=A0 =A0-29=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0G6AVK=A0 =A0JO01ho=A0 =A0620=A0 =A0296=A0
=A02014-02-23 22:00=A0 =A0DK7FC=A0 =A00.475630=A0 =A0-24=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0G3TYB=A0 =A0JO01ii=A0 =A0605=A0 =A0294=A0
=A02014-02-23 21:28=A0 =A0DK7FC=A0 =A00.475684=A0 =A0-22=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0F59706=A0 =A0JN07th=A0 =A0574=A0 =A0248=A0
=A02014-02-23 22:36=A0 =A0DK7FC=A0 =A00.475686=A0 =A0-30=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0IW4DXW=A0 =A0JN64bw=A0 =A0563=A0 =A0151=A0
=A02014-02-24 02:40=A0 =A0DK7FC=A0 =A00.475689=A0 =A0-27=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0DF2FF=A0 =A0JO44th=A0 =A0546=A0 =A06=A0
=A02014-02-23 18:50=A0 =A0DK7FC=A0 =A00.475685=A0 =A0-25=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0DG3LV=A0 =A0JO53gv=A0 =A0512=A0 =A014=A0
=A02014-02-23 17:54=A0 =A0DK7FC=A0 =A00.475685=A0 =A0-28=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0F5WK=A0 =A0JN18hp=A0 =A0452=A0 =A0261=A0
=A02014-02-23 20:14=A0 =A0DK7FC=A0 =A00.475685=A0 =A0-29=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0PE1RKT=A0 =A0JO22fb=A0 =A0418=A0 =A0316=A0
=A02014-02-23 18:36=A0 =A0DK7FC=A0 =A00.475685=A0 =A0-25=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0F6CNI=A0 =A0JN19qb=A0 =A0389=A0 =A0266=A0
=A02014-02-24 02:00=A0 =A0DK7FC=A0 =A00.475685=A0 =A0-21=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0PA3ABK/2=A0 =A0JO21it=A0 =A0386=A0 =A0315=A0
=A02014-02-23 18:56=A0 =A0DK7FC=A0 =A00.475685=A0 =A0-23=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0DL-SWL=A0 =A0JO52hp=A0 =A0381=A0 =A020=A0
=A02014-02-23 18:22=A0 =A0DK7FC=A0 =A00.475685=A0 =A0-24=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0PI4THT=A0 =A0JO32kf=A0 =A0336=A0 =A0338=A0
=A02014-02-23 18:38=A0 =A0DK7FC=A0 =A00.475690=A0 =A0-17=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0DL4YHF=A0 =A0JO42fd=A0 =A0302=A0 =A0357=A0
=A02014-02-23 22:04=A0 =A0DK7FC=A0 =A00.475685=A0 =A0-29=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0DF2JP=A0 =A0JO31jg=A0 =A0245=A0 =A0327=A0
=A02014-02-23 17:38=A0 =A0DK7FC=A0 =A00.475682=A0 =A0-26=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0F6ACU=A0 =A0JN38fc=A0 =A0222=A0 =A0229=A0
=A02014-02-24 00:00=A0 =A0DK7FC=A0 =A00.475693=A0 =A0-28=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0DB8UY=A0 =A0JN59tw=A0 =A0217=A0 =A074=A0
=A02014-02-23 17:36=A0 =A0DK7FC=A0 =A00.475684=A0 =A0-23=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0DL1DBC=A0 =A0JO41bi=A0 =A0217=A0 =A0349=A0
=A02014-02-23 20:52=A0 =A0DK7FC=A0 =A00.475685=A0 =A0-8=A0 =A00=A0 =A0JN49ik=A0 =A01=A0 =A0DK2DB=A0 =A0JN48fw=A0 =A058=A0 =A0198=A0


Am 23.02.2014 22:56, schrieb schaefer:
OK, now that's the class-E version: https://dl.dropboxusercontent.com/u/19882028/MF/20140223_223105.jpg<= /a>

The PA input power is now 2.5V * 23mA =3D 58 mW, so maybe 40 mW RF power

The drain source voltage looks quite good, so i assume the efficiency is above 70%. Due to the low Q of the fixed inductors the result is however not as good as it could be. Anyway...

I'll let it run over the night, and i will remove the 100 Ohm resistor, so the power will rise now and will become lower and lower until the battery is completely empty :-) Let's see who makes the last decode :-) Actually i nice game for using empty batteries which have some rest energy.

73, Stefan/DK7FC


Am 23.02.2014 20:09, schrieb schaefer:
Hello Andy,

It is sunday so it is a bit harder to find a lemon if you don't have one at home :-) Thus i'm still using the empty 9V battery, which has 2V now again. The power consumption of the PA seem to have dropped. Anyway the voltage across the 50 Ohm BNC jack rose! Seem the efficiency is much better now :-) And the voltage form looks much more sine like :-)
73, Stefan

PS:. About the 1W, i'm not using K1JTs software to generate my WSPR signal but the software by DF6NM. This has a fixed "message", i.e. parameters. It is because WSPR-X is a "dial" software, so i would have to use another VAC line if i want to use it. I already need 2 VACs for LF/MF WSPR RX. So just ignore the 1W. Normally it is not 1W anyway :-)

Am 23.02.2014 19:58, schrieb Andr=E9 Guy=E9:
HI, HI Stefan.
=A0
A nice image, but where is the lemon High voltage battery ????
=A0
I wish you a lot of fun. On the way, can you correct your power. You sent 1 Watt / 30 dBm, that is a bit too much indeed ! HI
=A0
Andy.
Hello Andy, MF,

Here is an image of what i have so far: https://dl.dropboxusercontent.com/u/19882028/MF/20140223_193945.jpg<= /a>
I'm just playing arround, without having a schematic or calculations. But now i'm starting to add some elements to improve the efficiency.

Maybe tomorrow i will transmit with a LEMON. Maybe some JT9 or WSQ QSO can be made with that ;-)

73, Stefan



Am 23.02.2014 19:25, schrieb Andr=E9 Guy=E9:
Ok Stefan,
=A0
here hard to copy you because your TX frequency is not clear at this moment.
=A0
Please, what is the current intensity at the base of the antenna ?
=A0
Andy.
=A0
Sent: Sunday, February 23, 2014 7:08 PM
Subject: LF: WSPR MF QRPPPPP by DK7FC ??
=A0
Hello all,

You all know me as a QRP station :-) But today i want to run even less power!

While running in the sunny afternoon i got the idea to build a very small and weak PA. After some playing arround it came to me that it will be a class-E PA. The power supply should be a lemon battery, i.e. a homemade galvanic element, maybe 2 in series!

The desired RF power is arround 20...40 mW, at 2 V DC. And i'm using a BS170 MOSFET for that PA. The biggest part will be the BNC jack :-)

So far i'm testing with an empty 9V battery and a 100 Ohm resistor in series. I measured 2V and 35mA. But the PA is not yet aligned for class E mode. Probably the efficiency is less than 50% in the moment.

Anyway several stations seem to copy me :-)

More reporting stations are apprechiated, if you like to test your sensitive RX :-)

73, Stefan/DK7FC

PS: Later, i want to try to rectify some RF coming from AFN to my antenna. It this is fed to a 10F gold cap and WSPR-2 in 33% ratio is sent, maybe i can run that PA from the energy of AFN :-)



= Ce courrier =E9lectronique ne contient aucun virus ou logiciel malveillant parce que la protection Antivirus avast! est active.




<= img moz-do-not-send=3D"true" src=3D"http://static.avast.com/emails/avast-mail-stamp.png" border=3D"0"= >

= Ce courrier =E9lectronique ne contient aucun virus ou logiciel malveillant parce que la protection Antivirus avast! est active.


--------------090603080307050203000104--