Return-Path: Received: from rly-md02.mx.aol.com (rly-md02.mail.aol.com [172.20.29.140]) by air-md03.mail.aol.com (v123.3) with ESMTP id MAILINMD033-8ea49c0da1617b; Wed, 18 Mar 2009 07:25:32 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-md02.mx.aol.com (v123.3) with ESMTP id MAILRELAYINMD022-8ea49c0da1617b; Wed, 18 Mar 2009 07:25:11 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Ljtsz-0005Z4-K5 for rs_out_1@blacksheep.org; Wed, 18 Mar 2009 11:24:37 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Ljtsy-0005Yv-QS for rsgb_lf_group@blacksheep.org; Wed, 18 Mar 2009 11:24:36 +0000 Received: from mail-bw0-f165.google.com ([209.85.218.165]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Ljtsv-0006In-Hh for rsgb_lf_group@blacksheep.org; Wed, 18 Mar 2009 11:24:36 +0000 Received: by bwz9 with SMTP id 9so3138bwz.16 for ; Wed, 18 Mar 2009 04:24:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :x-goomoji-body:date:message-id:subject:from:to:content-type; bh=r558kGF0QTsRsOMjtnA+6l129LS76LC9IPVvlgb8cXY=; b=edzQK1R8xlBdObHzTRwF/jd9ErYnPl0gbAzAF0yPSbwkAufkB1CiyTOxI4TdX1Mkbn QZJjNoWaWHT0d0jKtLt+6xNW3ubtP05hHIRvm9QDogT4PgGk8Xq8LdOfSmZrUulTFjs7 xTlhdnTt9Zgeh51xp139DpBbC6aD0qVK1d2T4= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:x-goomoji-body:date:message-id :subject:from:to:content-type; b=Gcbyhmc/2ZSceQVxrLwJf7O5wZXxR8TYfdevxFwXpyRbI71oDJR3YLlWv5DlqPhqdh aX0eE7JszcW2b3W+CV/A6zcDa6bZ7fVkSczivSRSuIpqnvbocG+lvnYCbG+vMA5VcKAb Rzw3DBUAvQlMsJMPMa4HJIeFsJyA1OY6DETLc= MIME-Version: 1.0 Received: by 10.204.118.142 with SMTP id v14mr98349bkq.37.1237375466851; Wed, 18 Mar 2009 04:24:26 -0700 (PDT) In-Reply-To: <007901c9a74b$9e595450$6401a8c0@asus> References: <005501c9a73b$dd0b8ac0$6401a8c0@asus> <007901c9a74b$9e595450$6401a8c0@asus> X-Goomoji-Body: true Date: Wed, 18 Mar 2009 11:24:26 +0000 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org X-Karma: unknown: DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: RE: Who's playing on 503.7 Content-Type: multipart/related; boundary=0016e6d99bef27d054046562ed7c 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_60_70, HTML_FONTCOLOR_UNKNOWN,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 X-AOL-IP: 193.82.116.20 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m207.2 ; domain : googlemail.com DKIM : pass X-Mailer: Unknown (No Version) --0016e6d99bef27d054046562ed7c Content-Type: multipart/alternative; boundary=0016e6d99bef27d050046562ed7b --0016e6d99bef27d050046562ed7b Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable I sometimes flick the test switch and send a carrier - so you're probably seeing those. Andy G4JNT www.g4jnt.com 2009/3/17 Gary - G4WGT > *Andy,* > > * * > > *>>>>* Did the messages about the modified beacon timing software get > though this reflector - don't appear to see them in the in box? > > *I received the original & the correction to the url.* > > * * > > *OK, I used =93decode=94 as the first word that came out of my head.* > > * * > > *I have looked at the black trace on my beacon chart & it doesn=92t seem t= o > coincide with the peaks on the blue & green trace, there is a black peak b= ut > slightly offset. On my grabber saves there is very high noise level for a > couple of minutes some times the blue & green has a peak which shows on th= e > text log as well.* > > * * > > *But I have also seen very short carriers which I thought at first were > part of you normal beacon signal & when looking carefully at the timestamp > were at the following times =96 1735, 1750 & 1751. At these times there wa= s no > burst of noise.* > > * * > > *Cheers,* > > * * > > *Gary - G4WGT.* > > * * > > * * > > * * > ------------------------------ > > *From:* owner-rsgb_lf_group@blacksheep.org [mailto: > owner-rsgb_lf_group@blacksheep.org] *On Behalf Of *Andy Talbot > *Sent:* 17 March 2009 20:36 > *To:* rsgb_lf_group@blacksheep.org > *Subject:* Re: LF: RE: Who's playing on 503.7 > > > > continued ... > > > > The black trace gives it away. If there is extended QRM that spans the > noise measurement period (which is the WHOLE minute before) and the 5s Tx > period it will show up on both. The different system of noise > measurement explains why the (no QRMed) green and blue traces are not > sitting on top of teh black trace. Ideally, with no signal there, they > should. > > > Andy G4JNT > www.g4jnt.com > > 2009/3/17 Andy Talbot > > I filled in a couple at 1800, deliberately, by flicking the test switch on > my beacon Tx. But there are too many peaks on the green annd blue > traces to not suspect someone else is firing up a Tx. > > > > Its not a case of false decodes - there's not such thing as a 'decode' wit= h > this monitoring S/W. All it does is to measure the signal power over > precisely this time slot, using a synchronised FFT with a bin size of > 0.2Hz, which after windowing gives about 0.4Hz noise bandwidth. So any QR= M > would have to be quite strong to make a significant impact, and persist ov= er > 5 seconds. Short spikes get averaged out to not-a-lot. > > > > Did the messages about the modified beacon timing software get though this > reflector - don't appear to see them in the in box? > > > > If not, http://www.g4jnt.com/beacons.htm at the bottom look for PCBCN > > Directly, http://www.g4jnt.com/PCBCN.zip > > > > > Andy G4JNT > www.g4jnt.com > > 2009/3/17 Gary - G4WGT > > > > *Hi Andy, LF,* > > * * > > *I have not detected anything here other than your Tx.* > > * * > > *I was going to e-mail anyway because I have some false decodes on the 5 & > 6 minute slots, see list below. These coincide with high bursts of noise > which I experience here from time to time. Is there an issue with the deco= de > software being =93foxed=94 by high noise level?* > > * * > > *Gary =96 G4WGT.* > > * * > > *15:45 40.35 25.76 -240.0 0.0* > > *15:46 41.05 25.76 -240.0 1499.5* > > *15:47 39.52 25.76 -240.0 0.0* > > *16:00 41.70 25.75 -240.0 1499.5* > > *16:01 41.62 25.75 -240.0 1510.6* > > *16:02 31.49 25.75 -240.0 0.0* > > *16:15 40.10 25.47 -240.0 0.0* > > *16:16 30.16 25.47 -240.0 0.0* > > *16:17 29.17 25.47 -240.0 0.0* > > *16:30 37.85 28.93 -240.0 0.0* > > *16:31 41.80 28.93 -240.0 0.0* > > *16:32 36.23 28.93 -240.0 0.0* > > *16:45 40.98 25.80 -240.0 1499.6* > > *16:46 29.45 25.80 -240.0 0.0* > > *16:47 30.17 25.80 -240.0 0.0* > > *17:00 35.23 25.58 -240.0 0.0* > > *17:01 28.35 25.58 -240.0 0.0* > > *17:02 35.28 25.58 -240.0 0.0* > > *17:15 45.32 25.10 -240.0 1499.4* > > *17:16 30.14 25.10 -240.0 0.0* > > *17:17 27.57 25.10 -240.0 0.0* > > *17:30 51.09 25.30 -240.0 1499.5* > > *17:31 53.16 25.30 -240.0 1499.6* > > *17:32 30.18 25.30 -240.0 0.0* > > *17:45 47.93 25.21 -240.0 1499.5* > > *17:46 48.63 25.21 -240.0 1499.5* > > *17:47 49.12 25.21 -240.0 1499.5* > > *18:00 38.75 34.29 -240.0 0.0* > > *18:01 32.01 34.29 -240.0 0.0* > > *18:02 28.89 34.29 -240.0 0.0* > > *18:15 51.36 26.01 -240.0 1499.6* > > *18:16 38.85 26.01 -240.0 0.0* > > *18:17 40.74 26.01 -240.0 0.0* > > *18:30 43.06 24.96 -240.0 1499.5* > > *18:31 29.24 24.96 -240.0 0.0* > > *18:32 29.61 24.96 -240.0 0.0* > > *18:45 36.98 26.26 -240.0 0.0* > > *18:46 34.87 26.26 -240.0 0.0* > > *18:47 36.14 26.26 -240.0 0.0* > > *19:00 50.09 26.57 -240.0 1499.7* > > *19:01 42.04 26.57 -240.0 1518.0* > > *19:02 28.58 26.57 -240.0 0.0* > > * * > > * * > > * * > ------------------------------ > > *From:* owner-rsgb_lf_group@blacksheep.org [mailto: > owner-rsgb_lf_group@blacksheep.org] *On Behalf Of *Andy Talbot > *Sent:* 17 March 2009 19:48 > *To:* rsgb_lf_group@blacksheep.org > *Subject:* LF: Who's playing on 503.7 > > > > OK, Who is it? [?] > > We can see you > > There's activity in the 5 and 6 minutes slots. > > > > > > > Andy G4JNT > www.g4jnt.com > > > > > --0016e6d99bef27d050046562ed7b Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable
I=A0sometimes flick the test switch and send a carrier - so you're=20= probably seeing those.
=A0
Andy =A0G4JNT
www.g4jnt.com
=

2009/3/17 Gary - G4WGT <g4wgt@tiscali.co.uk>

Andy,

=A0

>>>>= ; Did the messages about the modified beacon timing softwa= re get though this reflector - don't appear to see them in the in box?

I received the=20= original & the correction to the url.

=A0

OK, I used =93d= ecode=94 as the first word that came out of my head.

=A0

I have looked a= t the black trace on my beacon chart & it doesn=92t seem to coincide wit= h the peaks on the blue & green trace, there is a black peak but slightl= y offset. On my grabber saves there is very high noise level for a couple of= minutes some times the blue & green has a peak which shows on the text=20= log as well.

=A0

But I have also= seen very short carriers which I thought at first were part of you normal b= eacon signal & when looking carefully at the timestamp were at the follo= wing times =96 1735, 1750 & 1751. At these times there was no burst of n= oise.

=A0

Cheers,<= /font>

=A0

Gary - G4WGT.

=A0

=A0

=A0

From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_= lf_group@blacksheep.org] On Behalf=20= Of Andy Talbot
Sent: 17 March 2009 20:36=20


To: rsgb_lf_grou= p@blacksheep.org
Subject:<= /span> Re: LF: RE: Who's playing on 503.7=20

=A0

continued ...

=A0

The black trace gives it away.=A0 If there is extended =A0QRM that spans= =A0 the noise measurement period (which is the WHOLE minute before) and the=20= 5s Tx period it will show up on both.=A0=A0 The different system of noise me= asurement=A0explains why the (no QRMed) green and blue traces are not sittin= g on top of teh black trace.=A0=A0 Ideally, with no signal there, they shoul= d.

<= span style=3D"FONT-SIZE: 12pt">
Andy =A0G4JNT
www.g4jnt.com

2009/3/17 Andy Talbot <andy.g4jnt@googlemail.com>

I filled in a couple at 1800, deliberately, by flicking the test switch on=20= my beacon Tx.=A0=A0=A0But there are too many peaks on the green annd blue tr= aces=A0to not suspect someone else is firing up a Tx.

=A0

Its not a case of false decodes - there's not such thing as a 'deco= de' with this monitoring S/W.=A0=A0 All it does is to measure=A0the sign= al power over precisely =A0this time slot, using=A0a synchronised FFT with a= =A0bin size of 0.2Hz,=A0which after windowing gives=A0about 0.4Hz noise band= width.=A0 So any QRM would have to be quite strong to make a significant imp= act, and persist over 5 seconds.=A0=A0 Short spikes get=A0 averaged out to n= ot-a-lot.

=A0

Did the messages about the modified beacon timing software get though this=20= reflector - don't appear to see them in the in box?

=A0

If not,=A0 h= ttp://www.g4jnt.com/beacons.htm=A0at the bottom look for PCBCN

=A0

<= span style=3D"FONT-SIZE: 12pt">
Andy =A0G4JNT
www.g4jnt.com

2009/3/17 Gary - G4WGT <g4wgt@tiscali.co.uk>

=A0

Hi Andy, LF,

=A0

I have not dete= cted anything here other than your Tx.

=A0

I was going to=20= e-mail anyway because I have some false decodes on the 5 & 6 minute slot= s, see list below. These coincide with high bursts of noise which I experien= ce here from time to time. Is there an issue with the decode software being=20= =93foxed=94 by high noise level?

=A0

Gary =96 G4WGT.=

=A0

15:45=A0 40.35= =A0 25.76=A0 -240.0=A0 0.0

15:46=A0 41.05= =A0 25.76=A0 -240.0=A0 1499.5

15:47=A0 39.52= =A0 25.76=A0 -240.0=A0 0.0

16:00=A0 41.70= =A0 25.75=A0 -240.0=A0 1499.5

16:01=A0 41.62= =A0 25.75=A0 -240.0=A0 1510.6

16:02=A0 31.49= =A0 25.75=A0 -240.0=A0 0.0

16:15=A0 40.10= =A0 25.47=A0 -240.0=A0 0.0

16:16=A0 30.16= =A0 25.47=A0 -240.0=A0 0.0

16:17=A0 29.17= =A0 25.47=A0 -240.0=A0 0.0

16:30=A0 37.85= =A0 28.93=A0 -240.0=A0 0.0

16:31=A0 41.80= =A0 28.93=A0 -240.0=A0 0.0

16:32=A0 36.23= =A0 28.93=A0 -240.0=A0 0.0

16:45=A0 40.98= =A0 25.80=A0 -240.0=A0 1499.6

16:46=A0 29.45= =A0 25.80=A0 -240.0=A0 0.0

16:47=A0 30.17= =A0 25.80=A0 -240.0=A0 0.0

17:00=A0 35.23= =A0 25.58=A0 -240.0=A0 0.0

17:01=A0 28.35= =A0 25.58=A0 -240.0=A0 0.0

17:02=A0 35.28= =A0 25.58=A0 -240.0=A0 0.0

17:15=A0 45.32= =A0 25.10=A0 -240.0=A0 1499.4

17:16=A0 30.14= =A0 25.10=A0 -240.0=A0 0.0

17:17=A0 27.57= =A0 25.10=A0 -240.0=A0 0.0

17:30=A0 51.09= =A0 25.30=A0 -240.0=A0 1499.5

17:31=A0 53.16= =A0 25.30=A0 -240.0=A0 1499.6

17:32=A0 30.18= =A0 25.30=A0 -240.0=A0 0.0

17:45=A0 47.93= =A0 25.21=A0 -240.0=A0 1499.5

17:46=A0 48.63= =A0 25.21=A0 -240.0=A0 1499.5

17:47=A0 49.12= =A0 25.21=A0 -240.0=A0 1499.5

18:00=A0 38.75= =A0 34.29=A0 -240.0=A0 0.0

18:01=A0 32.01= =A0 34.29=A0 -240.0=A0 0.0

18:02=A0 28.89= =A0 34.29=A0 -240.0=A0 0.0

18:15=A0 51.36= =A0 26.01=A0 -240.0=A0 1499.6

18:16=A0 38.85= =A0 26.01=A0 -240.0=A0 0.0

18:17=A0 40.74= =A0 26.01=A0 -240.0=A0 0.0

18:30=A0 43.06= =A0 24.96=A0 -240.0=A0 1499.5

18:31=A0 29.24= =A0 24.96=A0 -240.0=A0 0.0

18:32=A0 29.61= =A0 24.96=A0 -240.0=A0 0.0

18:45=A0 36.98= =A0 26.26=A0 -240.0=A0 0.0

18:46=A0 34.87= =A0 26.26=A0 -240.0=A0 0.0

18:47=A0 36.14= =A0 26.26=A0 -240.0=A0 0.0

19:00=A0 50.09= =A0 26.57=A0 -240.0=A0 1499.7

19:01=A0 42.04= =A0 26.57=A0 -240.0=A0 1518.0

19:02=A0 28.58= =A0 26.57=A0 -240.0=A0 0.0

=A0

=A0

=A0

From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_= lf_group@blacksheep.org] On Behalf=20= Of Andy Talbot
Sent: 17 March 2009 19:48To: rsgb_lf_group@blacksheep.org<= br> Subject: LF: Who's playi= ng on 503.7

=A0

OK, Who is it?

We can see you

There's activity in the=A05 and 6 minutes slots.

=A0

=A0


Andy =A0G4JNT
www.g4jnt.com

=A0

=A0


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