Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id wADDxuYA001769 for ; Tue, 13 Nov 2018 15:00:02 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1gMZ9S-0007jf-Pw for rs_out_1@blacksheep.org; Tue, 13 Nov 2018 13:54:46 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1gMZ9M-0007jW-5b for rsgb_lf_group@blacksheep.org; Tue, 13 Nov 2018 13:54:40 +0000 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91_59-0488984) (envelope-from ) id 1gMZ9K-0002n6-CH for rsgb_lf_group@blacksheep.org; Tue, 13 Nov 2018 13:54:39 +0000 Received: from submission (posteo.de [89.146.220.130]) by mout01.posteo.de (Postfix) with ESMTPS id 0ABFF16005F for ; Tue, 13 Nov 2018 14:54:36 +0100 (CET) X-DKIM-Result: Domain=posteo.de Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.de; s=2017; t=1542117277; bh=0BmAxIpZvSXmN3XnMTqLiJAMbQVQHGEINV7JlWKMfu4=; h=Date:From:To:Subject:From; b=L6CDhiZPgs4Kyv2a27p05uWfiIuB9R7Hx6vD7VNz3awyyeB2YxGTj2Eq5Vl3U28W0 PSS73SKNCZ7ITyKDwQGxjgBwIDKxtcnWe9rK5k8w2C4WH3xYKV45lt57CI1cBX0zng DTGg6O7WKEkl/yyuZBharkfwTe1r8EQaANLP462S9Uvzhf4o5CJDiejPDt5Vq4ZBhO pv7+u/cSVgsEeewsMiElp00nix4UeyMguXsBYGEarB48tLVKiCaUxhpiAF97Jkx2O7 6J/0xQP5w44li9Utb5HFlh3T8hYA7mO0T/QeZDfIg/cItGsV21P9/lLkZSXghlpfNt mlO6MnrJJzIAA== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 42vTdS3tBfz6tmX for ; Tue, 13 Nov 2018 14:54:36 +0100 (CET) Message-ID: <5BEAD79C.7030901@posteo.de> Date: Tue, 13 Nov 2018 14:54:36 +0100 From: DK7FC 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: <20A960C35C3B493C99DDCFAE10D2D4AC@DELL4> <1UQdnSwsYj.2Q2zU71XiXw@optiplex980-pc> <5BEA9786.3050408@posteo.de> <1UQdoNtzxb.7Mg82Xj0shA@optiplex980-pc> <10F9FE4F-B6C5-4BEB-A49D-AF154C86EEB3@md.metrocast.net> In-Reply-To: <10F9FE4F-B6C5-4BEB-A49D-AF154C86EEB3@md.metrocast.net> X-Spam-Score: -2.3 (--) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: Hi Rob, Thanks for trying. As announced, tonite there will be another series of shorter messages taking a longer time, so the SNR will be much higher, more than 6 dB, and also a k=21 mode will be used, which may help a bit as w [...] Content analysis details: (-2.3 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [185.67.36.65 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: ee37f4b261e58bbaf6a18fc5319c092e Subject: Re: LF: Re: LF EbNaut tonite Content-Type: multipart/alternative; boundary="------------000904050402070002000206" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_20_30,HTML_FONT_BIG, 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. --------------000904050402070002000206 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Rob, Thanks for trying. As announced, tonite there will be another series of shorter messages taking a longer time, so the SNR will be much higher, more than 6 dB, and also a k=21 mode will be used, which may help a bit as well. What was your locator? If i remember correctly we are in about 6600 km distance. PS: Remember, there is a time offset to be considered when the TX stations uses SpecLab to generate the signal. This is 0.3 seconds. Anyway it is worth to vary the time offset by +- 5%, 10%, 15% of a symbol length if there is unexpectedly no decode. 73, Stefan Am 13.11.2018 14:14, schrieb Rob Renoud: > Stefan, Jay and LF, > > I believe my EbNaut RX system is now operating as it should after a > night of end-to-end testing in the shack. I did not finish testing in > time to copy your second transmission. > > Would you do another transmission, Stefan? Other than K3SIW on the > LoFER band, that I have yet to copy, there are currently no other > EbNaut signals that I am aware of for testing. > > Tnx es 73, > Rob - K3RWR >> >> *----- Original Message -----* >> *From:* DK7FC > > >> *Reply-To:* > > >> *To:* > > >> *Cc:* Garry and Linda Hess > > >> *Sent:* 11/13/2018 4:21:10 AM >> *Subject:* Re: LF: Re: LF EbNaut tonite >> ------------------------------------------------------------------------ >> Hi Jay, >> >> Thanks for the decode. Great work despite the QRN! >> >> Regarding the other transmissions that failed to decode: Maybe >> it's not a question of the SNR but rather the phase stability (of >> the propagation path). Do you watch the showrawsyms.exe image? >> >> Maybe it is an idea to use a shorter message, so it will decode >> at even lower SNR, but still won't if its a phase issue. This may >> also be helpful for others beeing farer inland, like K3RWR, or >> maybe K3SIW? >> >> Do you like another session? >> >> Tonite: >> >> *f = 137.620 kHz >> Start time: 13.NOV.2018 21:00 UTC (hourly, until including 6 UTC) >> Symbol period: 3 s >> Characters: 5 >> CRC bits:** 16** >> Coding 8K21A (!) >> Antenna current: 4 A >> Duration: 26:24 [mm:ss] >> >> >> *73, Stefan >> >> --------------000904050402070002000206 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi Rob,

Thanks for trying.

As announced, tonite there will be another series of shorter messages taking a longer time, so the SNR will be much higher, more than 6 dB, and also a k=21 mode will be used, which may help a bit as well.

What was your locator? If i remember correctly we are in about 6600 km distance.

PS: Remember, there is a time offset to be considered when the TX stations uses SpecLab to generate the signal. This is 0.3 seconds. Anyway it is worth to vary the time offset by +- 5%, 10%, 15% of a symbol length if there is unexpectedly no decode.

73, Stefan




Am 13.11.2018 14:14, schrieb Rob Renoud:
Stefan, Jay and LF,

I believe my EbNaut RX system is now operating as it should after a night of end-to-end testing in the shack.  I did not finish testing in time to copy your second transmission.

Would you do another transmission, Stefan?   Other than K3SIW on the LoFER band, that I have yet to copy, there are currently no other EbNaut signals that I am aware of  for testing.

Tnx es 73,
Rob - K3RWR
 
----- Original Message -----
Cc: Garry and Linda Hess <k3siw@sbcglobal.net>
Sent: 11/13/2018 4:21:10 AM
Subject: Re: LF: Re: LF EbNaut tonite
Hi Jay,

Thanks for the decode. Great work despite the QRN!

Regarding the other transmissions that failed to decode: Maybe it's not a question of the SNR but rather the phase stability (of the propagation path). Do you watch the showrawsyms.exe image?

Maybe it is an idea to use a shorter message, so it will decode at even lower SNR, but still won't if its a phase issue. This may also be helpful for others beeing farer inland, like K3RWR, or maybe K3SIW?

Do you like another session?

Tonite:

f = 137.620 kHz
Start time: 13.NOV.2018  21:00 UTC (hourly, until including 6 UTC)
Symbol period: 3 s
Characters: 5
CRC bits: 16
Coding 8K21A (!)
Antenna current: 4 A
Duration: 26:24 [mm:ss]


73, Stefan


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