Delivered-To: daveyxm@virginmedia.com Received: by 10.50.237.98 with SMTP id vb2csp247779igc; Wed, 5 Mar 2014 15:53:42 -0800 (PST) X-Received: by 10.194.87.195 with SMTP id ba3mr5030539wjb.53.1394063621063; Wed, 05 Mar 2014 15:53:41 -0800 (PST) Return-Path: Received: from post.thorcom.com (post.thorcom.com. [195.171.43.25]) by mx.google.com with ESMTP id w8si2570706wjf.41.2014.03.05.15.53.40 for ; Wed, 05 Mar 2014 15:53:41 -0800 (PST) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1WLLFW-0005gB-AX for rs_out_1@blacksheep.org; Wed, 05 Mar 2014 23:29:18 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1WLLFV-0005g2-OP for rsgb_lf_group@blacksheep.org; Wed, 05 Mar 2014 23:29:17 +0000 Received: from mout.gmx.net ([212.227.15.15]) by relay1.thorcom.net with esmtp (Exim 4.82) (envelope-from ) id 1WLLFT-0000Fb-7i for rsgb_lf_group@blacksheep.org; Wed, 05 Mar 2014 23:29:16 +0000 Received: from DF2JPmob ([46.115.94.135]) by mail.gmx.com (mrgmx102) with ESMTPSA (Nemesis) id 0MTeVY-1Wlm471aK0-00QQO5 for ; Thu, 06 Mar 2014 00:29:14 +0100 From: "Joe" To: References: <3DE6A1363BA74AD988CF72188AEB25A2@White> In-Reply-To: <3DE6A1363BA74AD988CF72188AEB25A2@White> Date: Thu, 6 Mar 2014 00:29:06 +0100 Message-ID: <039d01cf38ca$b57385f0$205a91d0$@de> MIME-Version: 1.0 X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Ac84wZsoCf5kejXfSZK3NubhDf6YLwACPeCA Content-language: de X-Provags-ID: V03:K0:85S/1pUlwYma7/bnEqtD3+lFQUyFDFyvEI0mMrkro0OwOz69oaT qGuMGMTnhtvGsEkXXuvuNbr9VEvUhze8zbg+AmY3OsihierB3tDs3lNYtvmpBFEl3awoJHR 9aQ/3khr5FurFyiVUiz3ORDoFVH52lQa8CSMhpgLHsK8hk7R6HLk4W2kUGwyMcaehF/R48W vOch8Eyg3MaPAGs52TaKQ== 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: Hi Markus. Thank you, this helps. 73 Joe [...] 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 [212.227.15.15 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (df2jp[at]gmx.de) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: b183672d2d39521dd5e5027c4d070614 Subject: LF: AW: Opds-2H hints Content-Type: multipart/alternative; boundary="----=_NextPart_000_039E_01CF38D3.1737EDF0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.2 required=5.0 tests=HTML_50_60,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 This is a multi-part message in MIME format. ------=_NextPart_000_039E_01CF38D3.1737EDF0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Markus. =20 Thank you, this helps. =20 73 Joe =20 Von: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] Im Auftrag von Markus Vester Gesendet: Mittwoch, 5. M=E4rz 2014 23:23 An: rsgb_lf_group@blacksheep.org Betreff: LF: Opds-2H hints =20 Opera deep search users, =20 here are some details on how to adapt opds to the new Op-2H mode for = 29.5 kHz. =20 If you are using an USB receiver, you could tune to 27.98 kHz dial and process the audio band around 1.52 kHz. This will put Bob's QRG near the middle of the passband of standard Opera software, so if you want you = can run both side by side. The following settings will then let opds analyze = a 3.9 Hz wide passband centered on 29.500 kHz: =20 Audio samplerate: 12000 Hz FFT decimate (divisor): 1536 FFT length: 65536 (119.2 =B5Hz bin width).=20 FFT center frequency: 1520 Hz=20 Number of exported FFT bins: 32768 Waterfall scroll interval: 30 minutes L2 bandpass filter before noise blanker: center 1520 Hz =20 In opds.ini, the following lines need to be edited: =20 opspeed=3D128 'Op-2H speed (approx. minutes) spotdelay=3D116 'delay spot timestamp the same way as Opera (seconds) fc=3D29500 'FFT center frequency (Hz) sr=3D12000 'your calibrated samplerate (Hz) dec=3D100663296 '1536*64K decimation * FFT length =20 Many built-in soundcards are now supporting 96 kHz ADC samplerate. If = you own one of these, the much prefered option would be to connect the = antenna directly to the soundcard, doing away with the receiver and it's = possible drift. In SpecLab, you would then directly enter 29500 Hz center = frequency for the bandpass and the FFT, select an approximately 8x higher FFT decimator from the dropdown list (13824 instead of 1536), and modify the = dec factor in opds.ini accordingly (dec=3D905969664). You can then use = samplerate correction with one of the military MSK stations to remove any remaining drift. =20 Finally you will have to enter potential transmitting stations to the = search list callsloc.txt: =20 WH1XBA fn12lq WH2XBA fn42hi WH3XBA fn31ls WH4XBA em95tg WH5XBA bp51gn=20 WH6XBA em47em =20 Disclaimer: These are untested "theoretical" settings, please post if = you find errors or corrections. =20 Good luck! =20 73, Markus (DF6NM) =20 ------=_NextPart_000_039E_01CF38D3.1737EDF0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi Markus.

 

Thank you, this helps.

 

73 Joe

 

Von:<= /b> = owner-rsgb_lf_group@blacksheep.org = [mailto:owner-rsgb_lf_group@blacksheep.org] Im Auftrag von Markus = Vester
Gesendet: Mittwoch, 5. M=E4rz 2014 23:23
An: = rsgb_lf_group@blacksheep.org
Betreff: LF: Opds-2H = hints

 

Opera deep = search users,

 

here are = some details on how to adapt opds to the new Op-2H mode for = 29.5 kHz.

 

If you are = using an USB receiver, you could tune to 27.98 kHz dial and = process the audio band around 1.52 kHz. This will put = Bob's QRG near the middle of  the passband of standard Opera = software, so if you want you can run both side by side. The = following settings will then let opds analyze a 3.9 Hz wide = passband centered on 29.500 kHz:

 

Audio sa= mplerate: 12000 Hz

FFT decimate = (divisor): 1536

FFT length: = 65536  (119.2 =B5Hz bin width). =

FFT center = frequency: 1520 Hz

Number of = exported FFT bins: 32768

Waterfall = scroll interval: 30 minutes

L2 bandpass = filter before noise blanker: center 1520 = Hz

 

In opds.ini, = the following lines need to be = edited:

 

opspeed=3D128=      'Op-2H speed (approx. = minutes)
spotdelay=3D116   'delay spot timestamp the same = way as Opera (seconds)
fc=3D29500      =      'FFT center frequency = (Hz)
sr=3D12000         =   'your calibrated samplerate (Hz)
dec=3D100663296 =  '1536*64K decimation * FFT = length

 

Many = built-in soundcards are now supporting 96 kHz ADC samplerate. If you own = one of these, the much prefered option would be to connect the antenna = directly to the soundcard, doing away with the receiver and it's = possible drift. In SpecLab, you would then directly enter = 29500 Hz center frequency for the bandpass and the FFT, select = an approximately 8x higher FFT decimator from = the dropdown list (13824 instead of 1536), and modify the dec = factor in opds.ini accordingly (dec=3D905969664). You can then = use samplerate correction with one of the military MSK stations to = remove any remaining drift.

 

Finally you = will have to enter potential transmitting stations to the search list = callsloc.txt:

 

WH1XBA = fn12lq
WH2XBA fn42hi
WH3XBA fn31ls
WH4XBA em95tg
WH5XBA = bp51gn
WH6XBA em47em

 

Disclaimer: = These are untested "theoretical" settings, please post if = you find errors or corrections.

 

Good = luck!

 

73, Markus = (DF6NM)

 

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