Return-Path: Received: (qmail 24914 invoked from network); 18 Oct 2001 03:36:23 -0000 Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 18 Oct 2001 03:36:23 -0000 Received: (qmail 23946 invoked from network); 18 Oct 2001 03:35:02 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 18 Oct 2001 03:35:02 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 15u3tU-00050n-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 18 Oct 2001 04:30:52 +0100 Received: from mail.ifx.com.br ([200.201.133.66] helo=mail01.ifx.com.br) by post.thorcom.com with smtp (Exim 3.33 #2) id 15u3tS-00050e-00 for rsgb_lf_group@blacksheep.org; Thu, 18 Oct 2001 04:30:51 +0100 Received: (qmail 7141 invoked by uid 505); 18 Oct 2001 03:29:21 -0000 Received: from py2pll@py.qsl.br by mail01.ifx.com.br with qmail-scanner-0.96 (. Clean. Processed in 0.507633 secs); 18 Oct 2001 03:29:21 -0000 Received: from unknown (HELO P800) (200.201.142.114) by mail01.ifx.com.br with SMTP; 18 Oct 2001 03:29:20 -0000 Message-ID: <022001c15785$1eb611c0$8f8ec9c8@P800> From: "PY3CRX PY2PLL" To: rsgb_lf_group@blacksheep.org References: Subject: Re: LF: Re: just a test from South America Date: Thu, 18 Oct 2001 01:11:13 -0200 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4807.1700 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Hi Rafael ... > My antennas are 2m loop and Marconi > T with base load and variometer for use with TX. So please, try to catch two signals, the same modulation scheme (seems SITOR at a slower baudrate) at 133.3 and 146.5KHz ... This are the FSK center frequencies. Please, verify them with your loop if possible. Iīll do the same here untill next sunday. May be we can locate them. Another friend from Sta Maria told me he can pick those signals at night. > For TX I thing build a 4 x > IRF540 FETS G3YXM style (if I get the special authorization from > ANATEL...) Itīs a good solution ... I have some IRFs here (630 I guess) ... and a surplus "C" core switched power supply transformer that used to run on 80KHz (5V @ 100A). The secondary is just a copper strip, isolated but wound over itself, 5 turns. Itīs a vy low Z source. I need to do some tests to see If I can get a clean waveform, tunning the primary, I donīt know. May be this low Z makes short antennas feeding simpler, who knows? ANATEL is another issue. The actual amateur service regulations says that "we only need to INFORM the telecom authority that weīll use frequencies/modes not assigned for amateur, attaching one project sumary". We donīt need to ask for ... just let them know. But, you know, this crazy govt people ... they always read what they want ... 73 Marcus, PY3CRX/PY2PLL GG66rf http://py.qsl.br Active from "DC" to 24GHz