Return-Path: X-Spam-DCC: paranoid 1170; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_RCVD_HELO,HTML_50_60,HTML_MESSAGE 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 t2RFThps027064 for ; Fri, 27 Mar 2015 16:29:43 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1YbW9u-0000ZG-Id for rs_out_1@blacksheep.org; Fri, 27 Mar 2015 15:26:54 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1YbW9u-0000Z7-8B for rsgb_lf_group@blacksheep.org; Fri, 27 Mar 2015 15:26:54 +0000 Received: from rhcavuit02.kulnet.kuleuven.be ([134.58.240.130] helo=cavuit02.kulnet.kuleuven.be) by relay1.thorcom.net with esmtp (Exim 4.85) (envelope-from ) id 1YbW9s-00055E-Ch for rsgb_lf_group@blacksheep.org; Fri, 27 Mar 2015 15:26:53 +0000 X-KULeuven-Envelope-From: rik.strobbe@fys.kuleuven.be X-KULeuven-Scanned: Found to be clean X-KULeuven-ID: 16F6C1282FE.A108B X-KULeuven-Information: Katholieke Universiteit Leuven Received: from icts-p-smtps-1.cc.kuleuven.be (icts-p-smtps-1e.kulnet.kuleuven.be [134.58.240.33]) by cavuit02.kulnet.kuleuven.be (Postfix) with ESMTP id 16F6C1282FE for ; Fri, 27 Mar 2015 16:26:48 +0100 (CET) Received: from ICTS-S-HUB1.luna.kuleuven.be (icts-s-hub1.luna.kuleuven.be [10.112.9.15]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by icts-p-smtps-1.cc.kuleuven.be (Postfix) with ESMTPS id 15A7E40A1 for ; Fri, 27 Mar 2015 16:26:48 +0100 (CET) Received: from ICTS-S-MBX1.luna.kuleuven.be ([fe80::edaf:341f:90e:f70e]) by ICTS-S-HUB1.luna.kuleuven.be ([fe80::f5f7:d8cc:bee0:28d3%26]) with mapi id 14.03.0224.002; Fri, 27 Mar 2015 16:26:47 +0100 X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe To: "rsgb_lf_group@blacksheep.org" Thread-Topic: LF: Re: TXing WSPR on 630m on a Raspberry Pi, Stefan in QRP... Thread-Index: AQHQaHjvwLobpc7TUEyZFu/YgOVa/Z0wQe8AgAAThDWAAAGx/v//8eoAgAAocw6AAAJ/Cw== Date: Fri, 27 Mar 2015 15:26:46 +0000 Message-ID: <7E7DFBB4D102A04DB5ADC88D66628A4A234F1B3A@ICTS-S-MBX1.luna.kuleuven.be> References: <4698D0522AFD45F896A41F2D16A2D831@AGB> <19EEF7A6DD30462FA6ACC0F015DC9F52@AGB> <5509E3D5.90900@gmail.com> <55102D0C.8040405@gmail.com>,<55148587.3090101@gmail.com> <7E7DFBB4D102A04DB5ADC88D66628A4A234F1A25@ICTS-S-MBX1.luna.kuleuven.be> <520562D5C7694FF69C20E595E00B793D@F6CNIToshiba>,<55155AD6.1090102@gmail.com> <7E7DFBB4D102A04DB5ADC88D66628A4A234F1AFC@ICTS-S-MBX1.luna.kuleuven.be>,<551560D0.1040306@gmail.com> In-Reply-To: <551560D0.1040306@gmail.com> Accept-Language: nl-BE, en-GB, en-US Content-Language: nl-BE X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mimectl: Produced By Microsoft Exchange V14.3.123.2 x-originating-ip: [10.112.13.13] MIME-Version: 1.0 X-HELO-Warning: Remote host 134.58.240.130 (rhcavuit02.kulnet.kuleuven.be) used invalid HELO/EHLO cavuit02.kulnet.kuleuven.be - verification failed X-Scan-Signature: fce77e88417377663dedf94f027ec622 Subject: RE: LF: Re: TXing WSPR on 630m on a Raspberry Pi, Stefan in QRP... Content-Type: multipart/alternative; boundary="_000_7E7DFBB4D102A04DB5ADC88D66628A4A234F1B3AICTSSMBX1lunaku_" 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 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 2802 --_000_7E7DFBB4D102A04DB5ADC88D66628A4A234F1B3AICTSSMBX1lunaku_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Stefan, sri, no RF output. Just a audio signal (+/- 1500Hz) via the sound card. It is intended to be used with a HF TRX (most of them will not transmit bel= ow 1.8MHz) and then divide the (attenuated) HF signal down to MF or LF. 73, Rik ON7YD ________________________________ Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org= ] namens DK7FC [73dk7fc@googlemail.com] Verzonden: vrijdag 27 maart 2015 14:53 Aan: rsgb_lf_group@blacksheep.org Onderwerp: Re: LF: Re: TXing WSPR on 630m on a Raspberry Pi, Stefan in QRP.= .. Am 27.03.2015 14:43, schrieb Rik Strobbe: Hi Stefan, all, And i wrote an email to PE1NNZ and asked to a modification of the C-program= to generate a signal with 4x higher FSK shift. Then it it would be possibl= e to use that version for OMs having a divide-by-4 stage in their PA (to ge= t a perfect 50% duty cycle and rectangular shape (after passing optocoupler= s etc)). This would be a safe way to drive my QRP PA, testwise of course... I have written such a program for windows (actually you can set the devider= ratio to any number between 1 and 100). That way any HF TRX can be used to gerate a MF (or LF) WSPR signal with a s= imple CMOS ot TTL divider IC. If anyone is interested just let me know ... 73, Rik ON7YD - OR7T Hi Rik, Sounds good but how does the windows PC generate the RF? You know, the Rasp= i directly generates a "tone" at 475 kHz (or any other frequency up to 250 = MHz), not at 1500 Hz. Anyway it is interesting. Does your program provide time sync and a GUI to = type callsign/locator/erp and a "duty cycle"? 73, Stefan --_000_7E7DFBB4D102A04DB5ADC88D66628A4A234F1B3AICTSSMBX1lunaku_ Content-Type: text/html; charset="iso-8859-1" Content-ID: <06ABDB8F57F9E5418941ED2E784D7F18@luna.kuleuven.be> Content-Transfer-Encoding: quoted-printable

Hi Stefan,

 

sri, no RF output. Just a audio signal (+/- 1500Hz) via the sound card.

It is intended to be used&n= bsp;with a HF TRX (m= ost of them will not transmit&= nbsp;below 1.8MHz) and then&nb= sp;divide the (attenuated= ) HF signal down to MF or LF.

 

73, Rik  ON7YD

 

Van: owner-rsgb_lf_group@blacksheep.org [o= wner-rsgb_lf_group@blacksheep.org] namens DK7FC [73dk7fc@googlemail.com] Verzonden: vrijdag 27 maart 2015 14:53
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: Re: LF: Re: TXing WSPR on 630m on a Raspberry Pi, Stefan = in QRP...


Am 27.03.2015 14:43, schrieb Rik Strobbe:

Hi Stefan, all,

 

And i wrote an email to PE1= NNZ and asked to a modification of the C-program to gen= erate a signal with 4x higher FSK shift. Then=  it it would be possible to use that&nbs= p;version for OMs having a divide-by-4 stage in th= eir PA (to get a perfect 50% duty cycle and rectangular shape (after = passing optocouplers etc)). This would be a safe w= ay to drive my QRP PA, testwise of course...

I have written such a program for windows (ac= tually you can set the devider ratio to any number=  between 1 and 100).
That way any HF TRX can be used to = gerate a MF (or LF) WSPR signal with a simple = ;CMOS ot TTL divider IC.
If anyone is interested just let me know ...
 
73, Rik  ON7YD - OR7T
 
Hi Rik,

Sounds good but how does the windows PC generate the RF? You know, the Rasp= i directly generates a "tone" at 475 kHz (or any other frequency = up to 250 MHz), not at 1500 Hz.
Anyway it is interesting. Does your program provide time sync and a GUI to = type callsign/locator/erp and a "duty cycle"?

73, Stefan
--_000_7E7DFBB4D102A04DB5ADC88D66628A4A234F1B3AICTSSMBX1lunaku_--