Return-Path: X-Spam-DCC: paranoid 1102; Body=3 Fuz1=3 Fuz2=3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-0.7 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_MESSAGE,RATWARE_GECKO_BUILD autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id t4UMbpUk032588 for ; Sun, 31 May 2015 00:37:52 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1YypLL-0000xF-Hg for rs_out_1@blacksheep.org; Sat, 30 May 2015 23:35:03 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1YypLL-0000x6-5H for rsgb_lf_group@blacksheep.org; Sat, 30 May 2015 23:35:03 +0100 Received: from mail-wi0-f174.google.com ([209.85.212.174]) by relay1.thorcom.net with esmtps (TLSv1.2:AES128-GCM-SHA256:128) (Exim 4.85) (envelope-from <73dk7fc@googlemail.com>) id 1YypLI-00027E-EW for rsgb_lf_group@blacksheep.org; Sat, 30 May 2015 23:35:02 +0100 Received: by wizo1 with SMTP id o1so62835672wiz.1 for ; Sat, 30 May 2015 15:34:59 -0700 (PDT) X-DKIM-Result: Domain=googlemail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20120113; h=from:message-id:date:user-agent:mime-version:to:subject:references :in-reply-to:content-type; bh=wHyYzYcRjdIRfoaQiymFsaCmasq9GpnbVVSN9k4VIPI=; b=c06pwgJABzEH2O6Wtxj2ZDC6c2NkggCVeLp0VuNopD2kX6X1xW18QYwT1w+z0sCxV/ qEOzHvQSANEH3uKXxwfdzqd8Z3aTTTxkiBJbc/YmdvmyDxtu247HYdi0DA/uFlUYv0Xk MccOGukwVE45fXZ+ZpwcT0a2iOluSN48ZWoIg7UcnL9ALzyz/nY8OGW6JwOG6fwLdPXj pUuczz9ss1DzrGiFDf9w4A1nl/5YmhcxBMGoX24fP625kfkT0BMQHbHQAXxpk31Wd2zT gYUgxQi6NXL10E7J2/pLm5QOEph5y2mr6AySA8DlUFTc8a1YLDPCwIhGlMDfVuZeLbuK hFfQ== X-Received: by 10.180.20.12 with SMTP id j12mr7594528wie.4.1433025299624; Sat, 30 May 2015 15:34:59 -0700 (PDT) Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de. [129.206.22.206]) by mx.google.com with ESMTPSA id c3sm7635438wja.3.2015.05.30.15.34.58 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sat, 30 May 2015 15:34:59 -0700 (PDT) From: DK7FC <73dk7fc@googlemail.com> X-Google-Original-From: DK7FC <73dk7fc@gmail.com> Message-ID: <556A3B12.9090408@gmail.com> Date: Sun, 31 May 2015 00:34:58 +0200 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: <5568E23F.5070907@posteo.de> <98550314F4E343FF8ACABAF3E7D5FC8B@MichaelSappPC> In-Reply-To: X-Scan-Signature: fefa6d96b1284f767a869566d1bc7791 Subject: Re: LF: Almost Content-Type: multipart/alternative; boundary="------------030909090407050401010300" 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 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 3367 This is a multi-part message in MIME format. --------------030909090407050401010300 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Mike, Interesting to read about your RX equipment. Sounds like a bit effort but must be a great fun as well :-) I like the different antennas, and i'm glad to read that there is interest to get my signals. Well, you could have asked to QSY a bit, so i'm not right on your QRM traces. Or would this be some kind of cheating? Maybe it's a good night again, graphs on http://lasp.colorado.edu/space_weather/dsttemerin/dsttemerin.html look quite promising... 73, Stefan Am 30.05.2015 20:33, schrieb Michael Sapp: > Markus: I do not think the QRM signals are spurious. I have built the > W1VD preselector for 475~500 kHz range and the offending signals are > still present when the preselector is used. Same with the FZ-02 > filter. There are some commercial and retail shops to my NE about > 300~400 meters away, possible that is the source. However, the > offending QRM signals are not consistent in frequency or strength from > one day to the next. QRM signals are not very strong, but strong > enough to interfere with a -27 to -30 SNR desired signal. > I use a pair of crossed EWE antennas to have four-way selectable > cardio patterns for NE, SW, SE, and NW directional reception. If I > switch to the NW direction, the QRM signals go away, but then > directivity to DK7FC would be about 4~5dB down. To the SW and SE > directions some QRM sources disappear, and other QRM sources appear. > I may try some phase steering between the two EWE antennas. It is an > ongoing learning process. Random chance could always prevail, so I > continue to listen, tinker, and occasionally even learn something ~:). > 73, > Mike wa3tts > PS: I have received several F5WK wspr2 captures on 630m this last > December.... > https://www.dropbox.com/s/wkfcl9gfyac5nlm/F5WKMAP.JPG?dl=0 > https://www.dropbox.com/s/fzox0bk492h20dq/IMG_4142.JPG?dl=0 > > ----- Original Message ----- a > *From:* Markus Vester > *To:* rsgb_lf_group@blacksheep.org > > *Sent:* Saturday, May 30, 2015 6:20 AM > *Subject:* Re: LF: Almost > > Looks like Stefan ran into a Loran line... but wait, Loran is no > longer there in North America, and anyway we're on MF not LF. Mike > any idea what is causing those spurs? > https://dl.dropboxusercontent.com/s/hferguh5tdeaccw/IMG_4352.JPG (direct > link) > 73, Markus (DF6NM) > > *From:* Michael Sapp > *Sent:* Saturday, May 30, 2015 4:41 AM > *To:* rsgb_lf_group@blacksheep.org > > *Subject:* LF: Almost > > Stefan: Close, but no cigar..... local QRM..... > https://www.dropbox.com/s/hferguh5tdeaccw/IMG_4352.JPG?dl=0 > 73 Mike wa3tts > > ----- Original Message ----- > *From:* DK7FC > *To:* rsgb_lf_group@blacksheep.org > > *Sent:* Friday, May 29, 2015 6:03 PM > *Subject:* LF: Worse than false decodes... > --------------030909090407050401010300 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Mike,

Interesting to read about your RX equipment. Sounds like a bit effort but must be a great fun as well :-)  I like the different antennas, and i'm glad to read that there is interest to get my signals.
Well, you could have asked to QSY a bit, so i'm not right on your QRM traces. Or would this be some kind of cheating?
Maybe it's a good night again, graphs on http://lasp.colorado.edu/space_weather/dsttemerin/dsttemerin.html look quite promising...

73, Stefan

Am 30.05.2015 20:33, schrieb Michael Sapp:
Markus:  I do not think the QRM signals are spurious. I have built the W1VD preselector for 475~500 kHz range and the offending signals are still present when the preselector is used.  Same with the FZ-02 filter.  There are some commercial and retail shops to my NE about 300~400 meters away, possible that is the source.  However, the offending QRM signals are not consistent in frequency or strength from one day to the next.  QRM signals are not very strong, but strong enough to interfere with a -27 to -30 SNR desired signal.  
 
  I use a pair of crossed EWE antennas to have four-way selectable cardio patterns for NE, SW, SE, and NW directional reception. If I switch to the NW direction, the QRM signals go away, but then directivity to DK7FC would be about 4~5dB down.  To the SW and SE directions some QRM sources disappear, and other QRM sources appear.  I may try some phase steering between the two EWE antennas. It is an ongoing learning process. Random chance could always prevail, so I continue to listen, tinker, and occasionally even learn something ~:). 73,
 
Mike wa3tts
 
PS: I have received several  F5WK wspr2 captures on 630m this last December....
 
 
----- Original Message ----- a
Sent: Saturday, May 30, 2015 6:20 AM
Subject: Re: LF: Almost

Looks like Stefan ran into a Loran line... but wait, Loran is no longer there in North America, and anyway we're on MF not LF. Mike any idea what is causing those spurs?
 
 
73, Markus (DF6NM)

Sent: Saturday, May 30, 2015 4:41 AM
Subject: LF: Almost

Stefan: Close, but no cigar..... local QRM.....
 
 
73 Mike wa3tts
----- Original Message -----
From: DK7FC
Sent: Friday, May 29, 2015 6:03 PM
Subject: LF: Worse than false decodes...

--------------030909090407050401010300--