Return-Path: Received: from mtain-mg05.r1000.mx.aol.com (mtain-mg05.r1000.mx.aol.com [172.29.96.205]) by air-mf05.mail.aol.com (v129.4) with ESMTP id MAILINMF053-8beb4c0652bc236; Wed, 02 Jun 2010 08:46:52 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mg05.r1000.mx.aol.com (Internet Inbound) with ESMTP id 136A2380000D7; Wed, 2 Jun 2010 08:46:50 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OJnK6-00034K-OB for rs_out_1@blacksheep.org; Wed, 02 Jun 2010 13:45:30 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OJnK6-00034B-An for rsgb_lf_group@blacksheep.org; Wed, 02 Jun 2010 13:45:30 +0100 Received: from cpsmtpb-ews07.kpnxchange.com ([213.75.39.10]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OJnK1-0008NR-By for rsgb_lf_group@blacksheep.org; Wed, 02 Jun 2010 13:45:30 +0100 Received: from cpbrm-ews08.kpnxchange.com ([10.94.84.139]) by cpsmtpb-ews07.kpnxchange.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 2 Jun 2010 14:45:19 +0200 Received: from CPSMTPM-EML110.kpnxchange.com ([195.121.3.14]) by cpbrm-ews08.kpnxchange.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 2 Jun 2010 14:45:19 +0200 Received: from ns94d01ae4d850 ([81.204.139.159]) by CPSMTPM-EML110.kpnxchange.com with Microsoft SMTPSVC(7.0.6001.18000); Wed, 2 Jun 2010 14:45:19 +0200 Message-ID: From: "henny van elst" To: References: <36961E69CE53474DA934F2C823FD62FC@ns94d01ae4d850> <4C064ECC.7030600@iup.uni-heidelberg.de> Date: Wed, 2 Jun 2010 14:45:11 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 X-OriginalArrivalTime: 02 Jun 2010 12:45:19.0449 (UTC) FILETIME=[7557DC90:01CB0251] X-RecipientDomain: blacksheep.org X-Spam-Score: 3.4 (+++) X-Spam-Report: autolearn=disabled,FORGED_MUA_OUTLOOK=3.36,HTML_MESSAGE=0.001 Subject: Re: LF: 8.970khz Content-Type: multipart/alternative; boundary="----=_NextPart_000_0039_01CB0262.33FCB0C0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.4 required=5.0 tests=FORGED_MUA_OUTLOOK,HTML_30_40, HTML_MESSAGE 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 x-aol-global-disposition: G x-aol-sid: 3039ac1d60cd4c0652ba622b X-AOL-IP: 193.82.116.20 ------=_NextPart_000_0039_01CB0262.33FCB0C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello Stefan, it is just a sweeping carrier, henny cpm best 73s ----- Original Message -----=20 From: Stefan Sch=E4fer=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Wednesday, June 02, 2010 2:30 PM Subject: Re: LF: 8.970khz Wow, nice, congrats! What was the mode in which you have transmitted? QRSS120? You could try such a TV transformer. That may give you easily 30dB= more power (depending on your losses), so you could reach 1,5km!? If you cannot find such one, you could try a ferrite core out of an= SMPS. But it will be a lot of work to wind that secondary coil and ha= ndle the HV! Good luck! 73, Stefan Am 02.06.2010 14:01, schrieb henny van elst:=20 Hi LF, I also did some tx test on 8.970khz,using a power oscillator. output on 8.9khz 40 volt. than i take a transformer from the junkbox=20 40 volt input gave me 160 volt output. I use my 137khz antenne (340PF).and i can hear my signal 0.5km awa= y, the reciever is the debeg portable with a datong up converter(28mh= z) and a home made loop ,dameter 50cm. will be continu, Henny pa3cpm best 73s ----------------------------------------------------------------------= -------- No virus found in this incoming message. Checked by AVG - www.avg.com=20 Version: 8.5.437 / Virus Database: 271.1.1/2911 - Release Date: 06/0= 1/10 18:25:00 ------=_NextPart_000_0039_01CB0262.33FCB0C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hello Stefan,
it is just a sweeping carrier,=
henny cpm
best 73s
----- Original Message -----
Sent: Wednesday, June 02, 201= 0 2:30=20 PM
Subject: Re: LF: 8.970khz

Wow, nice, congrats!

What was the mode in whic= h you have=20 transmitted? QRSS120?

You could try such a TV transformer. Th= at may=20 give you easily 30dB more power (depending on your losses), so you= could reach=20 1,5km!?
If you cannot find such one, you could try a ferrite core= out of an=20 SMPS. But it will be a lot of work to wind that secondary coil and= handle the=20 HV!

Good luck!

73, Stefan

Am 02.06.2010 14:01,= schrieb=20 henny van elst:=20
Hi LF,
I also did some tx test on 8.970k= hz,using a=20 power oscillator.
output on 8.9khz 40 volt.<= /DIV>
than i take a transformer from th= e junkbox=20
40 volt input gave me 160 volt=20 output.
I use my 137khz antenne (340PF).a= nd i can hear=20 my signal 0.5km away,
the reciever is the debeg portabl= e with a=20 datong up converter(28mhz) and a home made loop ,dameter 50cm.
will be continu,
 
Henny pa3cpm
best 73s


No virus found in this incoming message.
Checked by AV= G -=20 www.avg.com
Version: 8.5.437 / Virus Database: 271.1.1/2911 - Re= lease=20 Date: 06/01/10 18:25:00
------=_NextPart_000_0039_01CB0262.33FCB0C0--