Delivered-To: daveyxm@virginmedia.com Received: by 10.50.237.98 with SMTP id vb2csp8626igc; Sun, 23 Feb 2014 11:00:45 -0800 (PST) X-Received: by 10.180.99.39 with SMTP id en7mr11366186wib.10.1393182044754; Sun, 23 Feb 2014 11:00:44 -0800 (PST) Return-Path: Received: from post.thorcom.com (post.thorcom.com. [195.171.43.25]) by mx.google.com with ESMTP id hi2si13400784wjc.149.2014.02.23.11.00.44 for ; Sun, 23 Feb 2014 11:00:44 -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 1WHe7L-00027q-Rp for rs_out_1@blacksheep.org; Sun, 23 Feb 2014 18:49:35 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1WHe7L-00027h-4W for rsgb_lf_group@blacksheep.org; Sun, 23 Feb 2014 18:49:35 +0000 Received: from mout2.freenet.de ([195.4.92.92]) by relay1.thorcom.net with esmtps (UNKNOWN:AES256-GCM-SHA384:256) (Exim 4.77) (envelope-from ) id 1WHe7I-0001vq-8P for rsgb_lf_group@blacksheep.org; Sun, 23 Feb 2014 18:49:34 +0000 Received: from [195.4.92.142] (helo=mjail2.freenet.de) by mout2.freenet.de with esmtpa (ID dl4yhf@freenet.de) (port 25) (Exim 4.80.1 #4) id 1WHe7G-0005JS-MQ for rsgb_lf_group@blacksheep.org; Sun, 23 Feb 2014 19:49:30 +0100 Received: from localhost ([::1]:40986 helo=mjail2.freenet.de) by mjail2.freenet.de with esmtpa (ID dl4yhf@freenet.de) (Exim 4.80.1 #4) id 1WHe7G-0007wV-Ct for rsgb_lf_group@blacksheep.org; Sun, 23 Feb 2014 19:49:30 +0100 Received: from mx3.freenet.de ([195.4.92.13]:46628) by mjail2.freenet.de with esmtpa (ID dl4yhf@freenet.de) (Exim 4.80.1 #4) id 1WHe55-0003GS-OX for rsgb_lf_group@blacksheep.org; Sun, 23 Feb 2014 19:47:15 +0100 Received: from blfd-4d08eb09.pool.mediaways.net ([77.8.235.9]:2200 helo=[192.168.178.21]) by mx3.freenet.de with esmtpsa (ID dl4yhf@freenet.de) (TLSv1:DHE-RSA-CAMELLIA256-SHA:256) (port 465) (Exim 4.80.1 #4) id 1WHe55-0002Hp-9b for rsgb_lf_group@blacksheep.org; Sun, 23 Feb 2014 19:47:15 +0100 Message-ID: <530A4231.1090404@freenet.de> Date: Sun, 23 Feb 2014 19:47:13 +0100 From: wolf_dl4yhf User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20130620 Thunderbird/17.0.7 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <530A3920.9020308@iup.uni-heidelberg.de> <08C9605D129D408EA502F9E9CECE649A@F6CNI> <530A3F59.2030807@iup.uni-heidelberg.de> In-Reply-To: <530A3F59.2030807@iup.uni-heidelberg.de> X-Originated-At: 77.8.235.9!2200 X-Spam-Score: -0.5 (/) 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: All seem to use similar output powers now.. at least 'seen from a distance', hi: 1838 -17 -0.5 0.475690 0 DK7FC JN49 30 1840 -13 4.0 0.475611 0 IW4DXW JN64 43 1840 -18 -1.0 0.475642 0 G3WCB IO91 23 1840 -18 -0.6 0.475690 0 DK7FC JN49 30 1842 -1 -0.5 0.475658 0 F5WK JN18 27 1842 -21 -1.3 0.475720 0 DL8YCA JO31 10 [...] Content analysis details: (-0.5 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [195.4.92.92 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dl4yhf[at]freenet.de) -0.5 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: bf14357d5ee2e4a717b88d90ab36122c Subject: Re: LF: WSPR MF QRPPPPP by DK7FC ?? Content-Type: multipart/alternative; boundary="------------040309030904020705080201" 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,LINES_OF_YELLING 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. --------------040309030904020705080201 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 8bit All seem to use similar output powers now.. at least 'seen from a distance', hi: 1838 -17 -0.5 0.475690 0 DK7FC JN49 30 1840 -13 4.0 0.475611 0 IW4DXW JN64 43 1840 -18 -1.0 0.475642 0 G3WCB IO91 23 1840 -18 -0.6 0.475690 0 DK7FC JN49 30 1842 -1 -0.5 0.475658 0 F5WK JN18 27 1842 -21 -1.3 0.475720 0 DL8YCA JO31 10 73 + GL, Wolf . Am 23.02.2014 19:35, schrieb schaefer: > Hello Andy, > > Well, the lowest range for the antenna current is 5A and the needle of > the analog meter does not move at all. It must be less than 50 mA. > The power drops more and more now since the battery is empty. Still > 1.85 V and F5WK detects me! :-) > > 73, Stefan > > Am 23.02.2014 19:25, schrieb André Guyé: >> Ok Stefan, >> here hard to copy you because your TX frequency is not clear at 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 >> *Subject:* LF: WSPR MF QRPPPPP by DK7FC ?? >> 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 électronique ne contient aucun virus ou logiciel >> malveillant parce que la protection Antivirus avast! >> est active. >> >> --------------040309030904020705080201 Content-Type: text/html; charset=ISO-8859-15 Content-Transfer-Encoding: 8bit
All seem to use similar output powers now.. at least 'seen from a distance', hi:

1838 -17 -0.5   0.475690  0 DK7FC JN49 30
1840 -13  4.0   0.475611  0 IW4DXW JN64 43
1840 -18 -1.0   0.475642  0 G3WCB IO91 23
1840 -18 -0.6   0.475690  0 DK7FC JN49 30
1842  -1 -0.5   0.475658  0 F5WK JN18 27
1842 -21 -1.3   0.475720  0 DL8YCA JO31 10

73 + GL,
  Wolf .

Am 23.02.2014 19:35, schrieb schaefer:
Hello Andy,

Well, the lowest range for the antenna current is 5A and the needle of the analog meter does not move at all. It must be less than 50 mA.
The power drops more and more now since the battery is empty. Still 1.85 V and F5WK detects me! :-)

73, Stefan

Am 23.02.2014 19:25, schrieb André Guyé:
Ok Stefan,
 
here hard to copy you because your TX frequency is not clear at 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
Subject: LF: WSPR MF QRPPPPP by DK7FC ??
 
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 électronique ne contient aucun virus ou logiciel malveillant parce que la protection Antivirus avast! est active.



--------------040309030904020705080201--