Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, HTML_MESSAGE,RCVD_IN_DNSWL_MED,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: : mailn 1480; Body=2 Fuz1=2 Fuz2=2 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id v0OJeaxH014737 for ; Tue, 24 Jan 2017 20:40:37 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cW6u8-0004K1-T7 for rs_out_1@blacksheep.org; Tue, 24 Jan 2017 19:37:20 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cW6u8-0004Js-Ht for rsgb_lf_group@blacksheep.org; Tue, 24 Jan 2017 19:37:20 +0000 Received: from mout02.posteo.de ([185.67.36.66]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from ) id 1cW6u5-00010W-US for rsgb_lf_group@blacksheep.org; Tue, 24 Jan 2017 19:37:19 +0000 Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id D2F4B20B3E for ; Tue, 24 Jan 2017 20:37:16 +0100 (CET) Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3v7JNX2Qmjzytl for ; Tue, 24 Jan 2017 20:37:16 +0100 (CET) Message-ID: <5887ACEB.2000207@posteo.de> Date: Tue, 24 Jan 2017 20:37:15 +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: <159c6d4aa99-2cc9-11356@webprd-m36.mail.aol.com> <5884E0D8.1090102@abelian.org> <5885FBEE.3060408@posteo.de> <58861BDF.8010605@posteo.de> <58875792.7020302@posteo.de> <58879804.7010301@abelian.org> In-Reply-To: <58879804.7010301@abelian.org> X-Scan-Signature: 13abe497adcf17a4e25c5e2a2ff79111 Subject: Re: ULF: First EbNaut message over > 1 wavelength on ULF Content-Type: multipart/alternative; boundary="------------000104030009050000000503" 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 2.75 Status: RO X-Status: X-Keywords: X-UID: 10327 This is a multi-part message in MIME format. --------------000104030009050000000503 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Thanks Paul, many thanks! And thanks to Wolf of course! We are writing radio history, a bit, at least it feels a bit like that in the moment. Well, so far 3 characters passed over 3 wavelengths. Let me try 5 tomorrow!: *f = 2970.000000 Hz Start time: 25.Jan.2017 07:00:00 UTC Symbol period: 30 s Characters: 5 CRC bits: 16 Coding 16K25A Duration: 9h, 20m, 0s Antenna current: 150 mA* Did you have some succes with the evaluation of the night transmission, 21th/22th? I thought about your hum filter. Did you try to vary the settings for it? Could be helpful to get the NB settings from one dublicated channel using the hum filter and apply it to the other one, using no hum filter (?) Just a thought. Or a simple clipping instead of a notch filter, a clipping that reduces the peak level to the sourrounding noise level. I'm not an expert here, but thinking anyway :-) 73, Stefan Am 24.01.2017 19:08, schrieb Paul Nicholson: > > Stefan wrote: > > > The first EbNaut message was decoded over a distance farer > > than 1 wavelength on the 101 km band. > > Well done. And it gets better - > > > f = 2970.000000 Hz > > Start time: 24.Jan.2017 08:00:00 UTC > > Symbol period: 30 s > > Characters: 3 > > CRC bits: 18 > > Coding 16K25A > > Decoded at Bielefeld distance 303.8km via DL4YHF's online > receiver. > > Copied 'ULF' at Eb/N0 = +2.4 dB constant reference phase. > BER 36.7%, carrier 14.7 dB in 34.7 uHz, -63.9dB in 2.5kHz. > > There was one timing glitch - a backward step of one sample > but it decoded without having to adjust for this. > > I will look at Cumiana now! > -- > Paul Nicholson > -- > --------------000104030009050000000503 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Thanks Paul, many thanks! And thanks to Wolf of course!
We are writing radio history, a bit, at least it feels a bit like that in the moment.

Well, so far 3 characters passed over 3 wavelengths.
Let me try 5 tomorrow!:

f = 2970.000000 Hz
Start time: 25.Jan.2017   07:00:00 UTC
Symbol period: 30 s
Characters: 5
CRC bits: 16
Coding 16K25A
Duration: 9h, 20m, 0s
Antenna current: 150 mA


Did you have some succes with the evaluation of the night transmission, 21th/22th? I thought about your hum filter. Did you try to vary the settings for it? Could be helpful to get the NB settings from one dublicated channel using the hum filter and apply it to the other one, using no hum filter (?) Just a thought. Or a simple clipping instead of a notch filter, a clipping that reduces the peak level to the sourrounding noise level. I'm not an expert here, but thinking anyway :-)

73, Stefan


Am 24.01.2017 19:08, schrieb Paul Nicholson:

Stefan wrote:

> The first EbNaut message was decoded over a distance farer
> than 1 wavelength on the 101 km band.

Well done.   And it gets better -

> f = 2970.000000 Hz
> Start time: 24.Jan.2017   08:00:00 UTC
> Symbol period: 30 s
> Characters: 3
> CRC bits: 18
> Coding 16K25A

Decoded at Bielefeld distance 303.8km via DL4YHF's online
receiver.

Copied 'ULF' at Eb/N0 = +2.4 dB constant reference phase.
BER 36.7%, carrier 14.7 dB in 34.7 uHz,  -63.9dB in 2.5kHz.

There was one timing glitch - a backward step of one sample
but it decoded without having to adjust for this.

I will look at Cumiana now!
--
Paul Nicholson
--

--------------000104030009050000000503--