Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dg06.r1000.mx.aol.com (Internet Inbound) with ESMTP id 806E138000093; Fri, 6 Jul 2012 13:45:31 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SnCC2-0006xL-45 for rs_out_1@blacksheep.org; Fri, 06 Jul 2012 18:19:46 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SnCC1-0006xB-4o for rsgb_lf_group@blacksheep.org; Fri, 06 Jul 2012 18:19:45 +0100 Received: from nm13-vm0.bullet.mail.ird.yahoo.com ([77.238.189.195]) by relay1.thorcom.net with smtp (Exim 4.77) (envelope-from ) id 1SnCBx-0004gQ-4V for rsgb_lf_group@blacksheep.org; Fri, 06 Jul 2012 18:19:44 +0100 Received: from [77.238.189.231] by nm13.bullet.mail.ird.yahoo.com with NNFMP; 06 Jul 2012 17:19:40 -0000 Received: from [212.82.108.226] by tm12.bullet.mail.ird.yahoo.com with NNFMP; 06 Jul 2012 17:19:40 -0000 Received: from [127.0.0.1] by omp1003.bt.mail.ird.yahoo.com with NNFMP; 06 Jul 2012 17:19:40 -0000 X-Yahoo-Newman-Id: 96367.67513.bm@omp1003.bt.mail.ird.yahoo.com Received: (qmail 60527 invoked from network); 6 Jul 2012 17:19:39 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btinternet.com; h=DKIM-Signature:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:From:To:References:Subject:Date:Message-ID:MIME-Version:Content-Type:X-Mailer:In-Reply-To:X-MimeOLE:Thread-Index; b=mNy1d2ccjlO3XF7zn2SuhKcmVeV6txZNp+kEnUeSxRM0rw9gTJzUX9UO8t1BNLEqTRBOHOX0JbCKtWmf2eoJ99KG4HBiS4gdQ4dsXGJeauL/lJotrTjxLNqDsyrUxxhThK3/O/1E44i7nBjSl5FzaCH7r0WHdITjjcBcNT3/eWc= ; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=btinternet.com; s=s1024; t=1341595179; bh=UUtJ+teX5rGmtZ3Y/qe9x1YGQ3Oh1bBbvV0zXcZdm2E=; h=X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:From:To:References:Subject:Date:Message-ID:MIME-Version:Content-Type:X-Mailer:In-Reply-To:X-MimeOLE:Thread-Index; b=ng0CjJkSUOcu0tmjbUISyOc1mAfGXQ2NqW0pKOXapaTxyjXEvXzNNJ80JOwEt53iSHNBSbALZM0f9Og1HTWWDO74wDAv2KSZOiK2FXK9YPFx0AVYxXcyHbpB72/6vK/q72dTqndfnWki54zFYszg74ZASberNtgnAnyNBQITvWk= X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: ic1JUucVM1maQwLMNkm4_IcVo7M6aGpuZ0ANhGaL5dMNNbx WegLlFY78j7qTEw4SIziiUmsoKiuvapJeQ7wjPKbX2u7HJRTYLUuHKd0fxeF 7ZaH.5KxGxtHKC9_rH70I2bdcVhwg_8GUeVcul9dnkOO3zCCGBQ0WfTlicZU utBzBOBJVX1DzTJPj5R59DmI6UgsAXnmggFEIEN8tyfCNk9M4eW_WNNAzfse r_pcOOVSaOXNJZPuqK1kXc4P.XVOnPOIVwjMyTwYmwfnSVTqbMZ0ax6VrvpG 7j6I1Z3hhJxe1.35.xoXbDbKFsbpX6BQEibDVRrAeGRRTzdzb11HMbiBZIKy ju94kdksqJH65uKNuhZqNMrUBgcGxXIQJySkCZyQkadQ3JoOOQFKDP9cmfJD .18pqXPTOBji.spNYYnoQDJyGBygeglxLQa46KDM1GY32wO6r6pdNBs8Gv3. TrQKQ2VnbwScAX3Iex.USqcQ1c_Mv2pEt0gtQZyr2VTs0XwL9xlEEXJgn X-Yahoo-SMTP: 9Y6mUHuswBAgnrOsukIiNdFDf95uy_Dz34nY1hlg2liKgYD952sjbg-- Received: from lindavideo (ken.h.wright@86.173.47.194 with login) by smtp816.mail.ird.yahoo.com with SMTP; 06 Jul 2012 17:19:39 +0000 GMT From: "Ken" To: References: <7E7DFBB4D102A04DB5ADC88D66628A4A0FAB99CC@ICTS-S-MBX5.luna.kuleuven.be> <1SmrFA-199XcW0@fwd21.t-online.de>, <4FF5EB68.9040507@iup.uni-heidelberg.de> <003401cd5b53$29fea5a0$0401a8c0@xphd97xgq27nyf> <506F5913C8204ACF94C32C7997FF1F01@AGB> Date: Fri, 6 Jul 2012 18:19:38 +0100 Message-ID: <18EDA97B55804092940864CAA40C8C50@lindavideo> MIME-Version: 1.0 X-Mailer: Microsoft Office Outlook 11 In-Reply-To: <506F5913C8204ACF94C32C7997FF1F01@AGB> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 Thread-Index: Ac1bZzAUi3m5MESKSJCuikpDDFsOawAMlX0g X-Spam-Score: 0.0 (/) 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: Dear all. I have been following this thread from the start, and thought why build an Analog Oscillator when you most likely have a good one already i.e. my old FT707, if I tune from 3.776MHz to 3.832MHz, reduce the power into a 50 ohm dummy load, tap off some of the output into a divide by 8, build two buffered 50 ohm outputs one to the tx the other to a frequency counter. It may be Heath Robinson but it beats spending six months trying to build a stable oscillator, also you can key the rig, ingenuity and a soldering iron? Most of you will have an old transceiver which includes top band so you need only divide by 4. As Mal would say that’s amateur radio at is best. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [77.238.189.195 listed in list.dnswl.org] 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-Scan-Signature: ec2fbd89ec38befef1020883d4ccf49e Subject: RE: Aw: Re: LF: RE: Analog oscillators Content-Type: multipart/alternative; boundary="----=_NextPart_000_0025_01CD5BA3.E8431640" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.3 required=5.0 tests=HTML_50_60, HTML_FONTCOLOR_UNKNOWN,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-SCOLL-SCORE: 0:2:510426432:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m289.2 ; domain : btinternet.com DKIM : pass x-aol-sid: 3039ac1d410e4ff7243b6bd8 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_0025_01CD5BA3.E8431640 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear all. I have been following this thread from the start, and thought why build = an Analog Oscillator when you most likely have a good one already i.e. my = old FT707, if I tune from 3.776MHz to 3.832MHz, reduce the power into a 50 = ohm dummy load, tap off some of the output into a divide by 8, build two buffered 50 ohm outputs one to the tx the other to a frequency counter. = It may be Heath Robinson but it beats spending six months trying to build a stable oscillator, also you can key the rig, ingenuity and a soldering = iron? Most of you will have an old transceiver which includes top band so you = need only divide by 4. As Mal would say that=92s amateur radio at is best.=20 73s Ken M0KHW =20 =20 _____ =20 From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Graham Sent: 06 July 2012 12:04 To: rsgb_lf_group@blacksheep.org Subject: Re: Aw: Re: LF: RE: Analog oscillators =20 Each to his own, but we would be giving questionable technical = advice, if building a LC vfo was put foreword as the preferred path to = 500 , Racal's barlow-wadley patent expired round 1970 and was replaced with the digital - phase locked design in the ra1771/2 , with 10 Hz stepping, round the same time ... =20 Non of this is relevant now, with the DDS , plenty of good ex-equipment 5 MHz standards about , that gives a 10:1 clock = over head , all that's needed is a 500 band pass filter and output = amp , If a CW tx is all that's needed , later use the DDS as the conversion oscillator in a down converter .. =20 OP QSO mode , good question , the phantom of the Opera works in mysterious ways .. its missing at the moment from the latest = version , keep the old version for later in the year !=20 =20 73 -G.. =20 From: mal hamilton=20 Sent: Friday, July 06, 2012 9:41 AM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: Aw: Re: LF: RE: Analog oscillators =20 Graham Getting One's Oscillator started seems to be the problem at present. = Perhaps a transverter is the answer. What has happened to Opera QSO mode. I do not get any replies, others = seem to favour Beacon mode. G3KEV =20 ----- Original Message -----=20 From: Graham =20 To: rsgb_lf_group@blacksheep.org=20 Sent: Thursday, July 05, 2012 9:27 PM Subject: Re: Aw: Re: LF: RE: Analog oscillators =20 I would say the most useful thing to make would be a linear = transmit HF > 500 convertor .. then all modes are possible , this is not = 137 , ultra stable long qrss will not work , due to the short qsb and varying skip distance, this can be observed in qso or beacon mode = , propagation will fail before the call is sent ! =20 G..=20 =20 From: Hans-Albrecht Haffa =20 Sent: Thursday, July 05, 2012 9:16 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Aw: Re: LF: RE: Analog oscillators =20 Dear Stefan, building stable oscillators was a topic in the eighties, and it depeded = all on getting stable components. Later developing OMs reported, that the oscillator for the qrp-TRX was the most difficult and time consuming = part in development. My recomendation: Buy aready built up DDS-oscillator, = available at Funkamateur.de (herre with IQ-sigs) or ELV-Elektronik. It is = stable, shows little noise on LF/MF. Must just be built into a enclosure. It = is a time saving solution. But: DFCW is not possible, and a keyed frequency divider must be added; I divide by factor ten with CMOS-ICs. More = details on request.=20 55, Hans-Albrecht, DK 8 ND =20 =20 Gesendet: Donnerstag, 05. Juli 2012 um 21:30 Uhr Von: "Stefan Sch=E4fer" An: rsgb_lf_group@blacksheep.org Betreff: Re: LF: RE: Analog oscillators=20 Hello Ha-Jo, Can you pull one of the xtals to cover the whole band? 73, Stefan Am 05.07.2012 20:57, schrieb hajo.brandt.dj1zb@t-online.de: > Dear all, > > the only parts I have bought so far for MF (still beeing engaged in > other developments) are two crystals: 6,5536 MHz and 7,0200 MHz, to be > mixed with each other. The mixer is another bipolar transistor, and = its > emitter current is being keyed. A final source follower after the > low-pass filter will deliver the output to 50 ohms. > > The same solution I have also used on LF. > > 73 Ha-Jo, DJ1ZB > >=20 > =20 =20 Ihr WEB.DE Postfach immer dabei: die kostenlose WEB.DE Mail App f=FCr = iPhone und Android. =20 https://produkte.web.de/freemail_mobile_startseite/ =20 ------=_NextPart_000_0025_01CD5BA3.E8431640 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Dear = all.

I have been following this thread = from the start, and thought why build an Analog Oscillator when you most likely = have a good one already i.e. my old FT707, if I tune from 3.776MHz to 3.832MHz, = reduce the power into a 50 ohm dummy load, tap off some of the output into a divide = by 8, build two buffered 50 ohm outputs one to the tx the other to a frequency = counter. It may be Heath Robinson but it beats spending six months trying to = build a stable oscillator, also you can key the rig, ingenuity and a soldering = iron? Most of you will have an old transceiver which includes top band so you need = only divide by 4. =A0As Mal would say that’s amateur radio at is best. =

73s

Ken=A0=A0=A0=A0 = M0KHW

 

 

From: = owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Graham
Sent: 06 July 2012 = 12:04
To: rsgb_lf_group@blacksheep.org
Subject: Re: Aw: Re: LF: = RE: Analog oscillators

 

Each to his  own, but we  would  be  = giving  questionable technical  advice, if  building  = a  LC  vfo  was put foreword  as the  preferred path = to  500 , Racal's  barlow-wadley  patent   expired = round  1970 and  was  replaced  with  the digital - phase = locked  design in the  ra1771/2 , with  10 Hz  = stepping, round  the  same time ...

 

Non  of this is  relevant now, with the  DDS , = plenty of  good   ex-equipment   5  MHz   standards  about , that  gives a  10:1  clock  over  head , all  that's needed is a  500  = band  pass  filter   and  output  amp , If  = a  CW  tx is  all that's  needed , later  use the  DDS  as the  conversion  oscillator  in a  = down  converter ..

 

OP QSO mode  , good  question , the  = phantom of the  Opera works in mysterious   ways  = .. its  missing  at the  moment  from the  latest version , = keep the  old  version  for  later  in the  = year !

 

73 -G..

 

From: mal hamilton

Sent: Friday, July 06, 2012 9:41 AM

Subject: Re: Aw: Re: LF: RE: Analog oscillators

 

Graham

Getting One's Oscillator started seems to be the = problem at present. Perhaps a transverter is the = answer.

What has happened to Opera QSO mode. I do not get any replies, others seem to favour Beacon mode.

G3KEV

 

----- Original Message ----- =

From: Graham

Sent: = Thursday, July 05, 2012 9:27 PM

Subject: Re: Aw: = Re: LF: RE: Analog oscillators

 

I would  say  the most useful thing  to  = make  would  be a linear  transmit   HF > = 500   convertor .. then  all  modes are  possible ,  = this  is not  137 , ultra stable  long qrss  will  = not  work , due to the  short  qsb  and  varying   = skip  distance, this can be observed  in qso  or beacon  mode , propagation  will  fail before the  call  is  = sent !

 

G.. 

 

Sent: Thursday, July 05, 2012 9:16 PM

Subject: Aw: Re: LF: RE: Analog oscillators

 


Dear Stefan,

building stable oscillators was a topic in the = eighties, and it depeded all on getting stable components. Later developing OMs = reported, that the oscillator for the qrp-TRX was the most difficult and time = consuming part in development. My recomendation: Buy aready built up = DDS-oscillator, available at Funkamateur.de  (herre with IQ-sigs) or = ELV-Elektronik.  It is stable, shows  little noise on LF/MF. Must just be built into = a enclosure.  It is a time saving solution. But: DFCW is not = possible, and a keyed frequency divider  must be added; I divide by factor ten with CMOS-ICs.  More details on request.

55, Hans-Albrecht, DK 8 = ND

 

 

Gesendet: Donnerstag, 05. Juli 2012 um 21:30 Uhr
Von: "Stefan Sch=E4fer" <Stefan.Schaefer@iup.uni-heidelberg.de>
An: rsgb_lf_group@blacksheep.org
Betreff: Re: LF: RE: = Analog oscillators

Hello Ha-Jo,

Can you pull one of the xtals to cover the whole band?

73, Stefan

Am 05.07.2012 20:57, schrieb hajo.brandt.dj1zb@t-online.de:
> Dear all,
>
> the only parts I have bought so far for MF (still beeing engaged = in
> other developments) are two crystals: 6,5536 MHz and 7,0200 MHz, to = be
> mixed with each other. The mixer is another bipolar transistor, and = its
> emitter current is being keyed. A final source follower after = the
> low-pass filter will deliver the output to 50 ohms.
>
> The same solution I have also used on LF.
>
> 73 Ha-Jo, DJ1ZB
>
>
>

 

  

Ihr WEB.DE Postfach = immer dabei: die kostenlose WEB.DE Mail App f=FCr iPhone und = Android.   
https://produkte.web.de/freemail_mobile_starts= eite/

 

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