Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mp01.r1000.mx.aol.com (Internet Inbound) with ESMTP id 2A1EC380000E4; Fri, 5 Apr 2013 04:00:09 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1UO1XH-0002jB-Mm for rs_out_1@blacksheep.org; Fri, 05 Apr 2013 08:58:11 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1UO1XG-0002j2-Qn for rsgb_lf_group@blacksheep.org; Fri, 05 Apr 2013 08:58:10 +0100 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1UO1XE-0004xq-4M for rsgb_lf_group@blacksheep.org; Fri, 05 Apr 2013 08:58:09 +0100 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id r357vkGm003834 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 5 Apr 2013 09:57:47 +0200 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id r357vkDD001509 for ; Fri, 5 Apr 2013 09:57:46 +0200 Message-ID: <515E83F5.6050705@iup.uni-heidelberg.de> Date: Fri, 05 Apr 2013 09:57:41 +0200 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <122E7FDB629A419F812E13FCF3EAF6BD@AGB> <515DB85B.6090603@iup.uni-heidelberg.de> <1365098839.67356.YahooMailNeo@web133203.mail.ir2.yahoo.com> <515DC8EB.6@iup.uni-heidelberg.de> In-Reply-To: X-Spam-Score: -3.1 (---) 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: Thanks to all for the advice. Now i have the necessary informations to start some tests. Has someone tried such a stick on 137 kHz? What is the dynamic range? You know, the DCF-39 problem... I.e. 60 dB would be problematic here... [...] Content analysis details: (-3.1 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [129.206.100.212 listed in list.dnswl.org] -2.4 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: c8ff00257edaad8e124ab9389da9609a Subject: LF: Dongel-SDR on LF? Content-Type: multipart/alternative; boundary="------------090100060305090109010005" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_40_50,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: 3039ac1dc145515e84881e02 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. --------------090100060305090109010005 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by relay.uni-heidelberg.de id r357vkGm003834 Thanks to all for the advice. Now i have the necessary informations to=20 start some tests. Has someone tried such a stick on 137 kHz? What is the dynamic range?=20 You know, the DCF-39 problem... I.e. 60 dB would be problematic here... 73, Stefan/DK7FC Am 04.04.2013 21:08, schrieb Graham: > Same stick Stefan > The layout is uff/vhf down convertor feeding 28 MHz =20 > A/D , every one started using HF to VHF convertors , but =20 > they have a problem as the off set qrg approaches 'zero' in=20 > the oscillator starts to leak into the signal path > At first there was very little code data on the chips ,=20 > but some one managed to get the command listings and now , can =20 > turn the down-mixer off or make it idle - and with =20 > connecting directly to the a/d , you now have a HF radio > you need to google to buy or for drivers etc ... > main chip set for dongle >> RTL2832U + E4000=20 > =20 > Amazon , etc but some of the prices are now a bit silly , =20 > some of the HongKong sellers are adding plugs and software > HDSDR > SDRSHARP > http://sdrsharp.com/downloads/sdr-install.zip <<< very simple ,=20 > grabs all the needed files > This is the dongle I modified for HF , you can see C2 ,=20 > linked to pin 1 of the A/D , just connect to that ( if it was =20 > a one way mod , you could remove the cap to isolate the a/d) > http://erewhon.superkuh.com/gnuradio/rtlsdr_QS_FSC_USB_DVB-T.jpg > Good luck ! if it go's bang , then its =A310 wasted , not =20 > $1000 ! > 73-G. --------------090100060305090109010005 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Thanks to all for the advice. Now i have the necessary informations to start some tests.

Has someone tried such a stick on 137 kHz? What is the dynamic range? You know, the DCF-39 problem... I.e. 60 dB would be problematic here...

73, Stefan/DK7FC

Am 04.04.2013 21:08, schrieb Graham:
Same  stick  Stefan
 
The  layout  is  uff/vhf   down  convertor  feeding    28 MHz     A/D    ,    every  one  started  using   HF to  VHF convertors  , but  they  have a  problem as the  off  set  qrg  approaches   'zero'   in the  oscillator   starts  to  leak  into  the  signal  path
 
At  first  there  was  very  little   code  data  on the  chips  , but  some  one  managed to  get the  command  listings  and now , can  turn the   down-mixer   off  or  make  it  idle  -  and with   connecting  directly  to  the  a/d   , you  now  have  a  HF  radio 
 
you  need  to  google    to  buy  or  for  drivers etc  ...
 
main  chip  set  for  dongle >>   RTL2832U + E4000    Amazon  , etc  but  some  of the  prices  are  now  a bit  silly  ,  some  of the  HongKong   sellers  are  adding plugs  and  software 
 
 
HDSDR 
 
SDRSHARP
 
http://sdrsharp.com/downloads/sdr-install.zip <<<  very simple  , grabs  all  the  needed  files
 
 
This is the  dongle  I modified  for  HF   , you  can  see  C2  , linked to  pin 1  of the  A/D , just  connect to  that  ( if it  was  a  one way  mod  , you  could  remove  the  cap  to  isolate the  a/d)
 
 
 
Good  luck  !   if it go's   bang  , then  its  £10  wasted  , not  $1000   !
 
73-G.
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