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 v2MCN7jo031827 for ; Wed, 22 Mar 2017 13:23:08 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cqfEM-0005NW-6Z for rs_out_1@blacksheep.org; Wed, 22 Mar 2017 12:19:10 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cqfEL-0005NN-JM for rsgb_lf_group@blacksheep.org; Wed, 22 Mar 2017 12:19:09 +0000 Received: from rhcavuit02.kulnet.kuleuven.be ([2a02:2c40:0:c0::25:130] helo=cavuit02.kulnet.kuleuven.be) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-ECDSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1cqfEI-0001YI-6t for rsgb_lf_group@blacksheep.org; Wed, 22 Mar 2017 12:19:08 +0000 X-KULeuven-Envelope-From: rik.strobbe@kuleuven.be X-KULeuven-Scanned: Found to be clean X-KULeuven-ID: DA14012809D.A53C5 X-KULeuven-Information: Katholieke Universiteit Leuven Received: from icts-p-smtps-1.cc.kuleuven.be (icts-p-smtps-1e.kulnet.kuleuven.be [134.58.240.33]) by cavuit02.kulnet.kuleuven.be (Postfix) with ESMTP id DA14012809D for ; Wed, 22 Mar 2017 13:18:58 +0100 (CET) Received: from ICTS-S-EXMBX20.luna.kuleuven.be (icts-s-exmbx20.luna.kuleuven.be [10.112.11.55]) (using TLSv1.2 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by icts-p-smtps-1.cc.kuleuven.be (Postfix) with ESMTPS id D796E403B for ; Wed, 22 Mar 2017 13:18:58 +0100 (CET) Received: from ICTS-S-EXMBX27.luna.kuleuven.be (10.112.11.62) by ICTS-S-EXMBX20.luna.kuleuven.be (10.112.11.55) with Microsoft SMTP Server (TLS) id 15.0.1263.5; Wed, 22 Mar 2017 13:18:58 +0100 Received: from ICTS-S-EXMBX27.luna.kuleuven.be ([fe80::291a:cc4f:6953:698a]) by ICTS-S-EXMBX27.luna.kuleuven.be ([fe80::291a:cc4f:6953:698a%25]) with mapi id 15.00.1263.000; Wed, 22 Mar 2017 13:18:58 +0100 X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe To: "rsgb_lf_group@blacksheep.org" Thread-Topic: LF: Re: Ready for JT9 in MF Thread-Index: AdKiaIBIO5o0hwscS6u6Fr35fDFuJQAGaHpMAAHrrfsAAGM6cgAUGoUuAANVBVAAAHWbDv//9RwAgAAVcAv///UrgIAAMM5n Date: Wed, 22 Mar 2017 12:18:58 +0000 Message-ID: <1490185140739.30500@kuleuven.be> References: <1490167582395.25912@kuleuven.be>,<579355A36AEE9D4FA555C45D556003AB8FD98944@servigilant.vigilant.local> <1490174030203.63709@kuleuven.be>,<58D2426E.7050700@gmail.com> <1490175595691.64489@kuleuven.be>,<58D24B53.3070809@gmail.com> In-Reply-To: <58D24B53.3070809@gmail.com> Accept-Language: nl-BE, en-GB, en-US Content-Language: nl-BE X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.112.50.1] MIME-Version: 1.0 X-Scan-Signature: b0f06858df415ca55c034ffb16f50aac Subject: Re: LF: Re: Ready for JT9 in MF Content-Type: multipart/alternative; boundary="_000_149018514073930500kuleuvenbe_" 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: O X-Status: X-Keywords: X-UID: 10978 --_000_149018514073930500kuleuvenbe_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Stefan, I am afraid I touched a sensitive spot ;-) I can only ensure you that is certainly not my intention to blame anyone. I have done some WSPRing last winter and below 2000km distance propagation = seems te be pretty contstant during darkness. There is the deep QSB, typica= l for the 500kHz range, but on avege there is little difference during the = night. The discrepancy you are reffering to could be partly responsable for the hu= ge SNR differnce, but in the past I had many JT9 QSO's over a similar dista= nce (+/- 1500km). 73, Rik ON7YD - OR7T ________________________________ Van: owner-rsgb_lf_group@blacksheep.org namens DK7FC <73dk7fc@googlemail.com> Verzonden: woensdag 22 maart 2017 11:00 Aan: rsgb_lf_group@blacksheep.org Onderwerp: Re: LF: Re: Ready for JT9 in MF Hm, i remember from my LF days that people tend to say i have "no ears" whe= n i didn't copy them. They copied me very good and so their easy conclusion= was that obviously i do not receive well. Actually the discrepancy between= the SNR had another reason. Maybe this is the same phenomenon here? Also Luis received LA2XPA last night, as he say. Timestamp Call MHz SNR Drift Grid Pwr Reporter = RGrid km az 2017-03-21 21:56 LA2XPA 0.475783 -26 0 JP= 33wi 0.2 EA5DOM-1 IM98xn 2807 195 But i see it was just a single decode. So maybe the condx were changing? I don't know. Just a thought. Maybe it is helpful to run some WSPR Rik, so you can see how the levels beh= ave during the evening, and which SNR can be expected. Then you will find t= he best time to try... Good luck. 73, Stefan PS: I missing MF but have to focus on VLF/ULF for some more time. Can't int= errupt the current ongoing carrier transmission.. Am 22.03.2017 10:39, schrieb Rik Strobbe: ?and that would be? 73, Rik ________________________________ Van: owner-rsgb_lf_group@blacksheep.org namens DK7FC <73dk7fc@googlemail.com> Verzonden: woensdag 22 maart 2017 10:22 Aan: rsgb_lf_group@blacksheep.org Onderwerp: Re: LF: Re: Ready for JT9 in MF ...i would have another explanation :-) 73, Stefan Am 22.03.2017 10:13, schrieb Rik Strobbe: Hello Luis, maybe your big building is good for transmitting but not so good for receiv= ing due to all the local noise. Setting up a remote RX at a quiet location = could do miracles. In JT9-1 mode signals can be copied down to -26dB and you peaked +1dB, so t= hese was a margin up to 27dB (500 x power !!!). 73, Rik ON7YD - OR7T ________________________________ Van: owner-rsgb_lf_group@blacksheep.org namens VIGILANT Luis Fern=E1ndez Verzonden: woensdag 22 maart 2017 9:54 Aan: rsgb_lf_group@blacksheep.org Onderwerp: LF: RE: Ready for JT9 in MF Hi Rik Pity ! Could not receive anybody here. And conditions were not bad at all. = I was spotting LA2XPA in WPSR at that time I have been monitoring JT9 for some time now and can recall receiving you a= nd other stations Unfortunately Eric, ON5TA, got a problem in his PA and is QRP now Anyway the downconverter is online and if there is any other chance we can = try QSO 73 de Luis EA5DOM --_000_149018514073930500kuleuvenbe_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi Stefan,


I am afraid I touched a sensitive spot ;-)

I can only ensure you that is certainly not my intention to blame anyone= .

I have done some WSPRing last winter and below 2000km distance prop= agation seems te be pretty contstant during darkness. There is the&nbs= p;deep QSB, typical for the 500kHz range, but on avege there is little diff= erence during the night.

The discrepancy you are reffering to could be partly responsable for the= huge SNR differnce, but in the past I had many JT9 QSO's over a similar di= stance (+/- 1500km).


73, Rik  ON7YD - OR7T


Van: owner-rsgb_lf_group@bl= acksheep.org <owner-rsgb_lf_group@blacksheep.org> namens DK7FC <73= dk7fc@googlemail.com>
Verzonden: woensdag 22 maart 2017 11:00
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: Re: LF: Re: Ready for JT9 in MF
 
Hm, i remember from my LF days that people tend to say i have "no= ears" when i didn't copy them. They copied me very good and so their = easy conclusion was that obviously i do not receive well. Actually the disc= repancy between the SNR had another reason.
Maybe this is the same phenomenon here?
Also Luis received LA2XPA last night, as he say.
Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
 2017-03-21 21:56   LA2XPA   0.475783   -26   0   JP33wi   0.2   EA5DOM-1   IM98xn   2807   195 

But i see it was just a single decode.
So maybe the condx were changing? I don't know. Just a thought.

Maybe it is helpful to run some WSPR Rik, so you can see how the levels beh= ave during the evening, and which SNR can be expected. Then you will find t= he best time to try...

Good luck.

73, Stefan

PS: I missing MF but have to focus on VLF/ULF for some more time. Can't int= errupt the current ongoing carrier transmission..


Am 22.03.2017 10:39, schrieb Rik Strobbe:

​and that would be?


73, Rik


Van: owner-rsgb_lf_group@blacksheep.org <owner-rsgb_lf_group@blacksheep.org> namens DK7FC <73dk7fc@googlemail.com>
Verzonden: woensdag 22 maart 2017 10:22
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: Re: LF: Re: Ready for JT9 in MF
 
...i would have another explanation :-)

73, Stefan

Am 22.03.2017 10:13, schrieb Rik Strobbe:

Hello Luis,


maybe your big building is good for transmitting but not so good fo= r receiving due to all the local noise. Setting up a remote RX at= a quiet location could do miracles.

In JT9-1 mode signals can be copied down to -26dB and you peaked &#= 43;1dB, so these was a margin up to 27dB (500 x power !!!).



73, Rik  ON7YD - OR7T


Van: owner-rsgb_lf_group@blacksheep.org <owner-rsgb_lf_group@blacksheep.org> namens VIGILANT Luis Fern=E1= ndez <luis@vigilant.es>
Verzonden: woensdag 22 maart 2017 9:54
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: LF: RE: Ready for JT9 in MF
 
Hi Rik
 
Pity ! Could not receive anybody here. And conditions were n= ot bad at all. I was spotting LA2XPA in WPSR at that time
 
I have been monitoring JT9 for some time now and can recall = receiving you and other stations
Unfortunately Eric, ON5TA, got a problem in his PA and is QR= P now
 
Anyway the downconverter is online and if there is any other= chance we can try QSO
 
73 de Luis
EA5DOM

--_000_149018514073930500kuleuvenbe_--