Return-Path: Received: from rly-md06.mx.aol.com (rly-md06.mail.aol.com [172.20.29.144]) by air-md09.mail.aol.com (v125.7) with ESMTP id MAILINMD092-90d4acbc1491eb; Tue, 06 Oct 2009 18:14:52 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-md06.mx.aol.com (v125.7) with ESMTP id MAILRELAYINMD065-90d4acbc1491eb; Tue, 06 Oct 2009 18:14:36 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1MvIHz-0004cW-Lx for rs_out_1@blacksheep.org; Tue, 06 Oct 2009 23:13:47 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1MvIHy-0004cN-Vm for rsgb_lf_group@blacksheep.org; Tue, 06 Oct 2009 23:13:47 +0100 Received: from imr-db03.mx.aol.com ([205.188.91.97]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1MvIHn-0003aT-DV for rsgb_lf_group@blacksheep.org; Tue, 06 Oct 2009 23:13:37 +0100 Received: from imo-ma02.mx.aol.com (imo-ma02.mx.aol.com [64.12.78.137]) by imr-db03.mx.aol.com (8.14.1/8.14.1) with ESMTP id n96MDFgL007833 for ; Tue, 6 Oct 2009 18:13:15 -0400 Received: from MarkusVester@aol.com by imo-ma02.mx.aol.com (mail_out_v42.5.) id l.c97.4efed494 (43963) for ; Tue, 6 Oct 2009 18:13:10 -0400 (EDT) Received: from smtprly-dc03.mx.aol.com (smtprly-dc03.mx.aol.com [205.188.170.3]) by cia-dd02.mx.aol.com (v125.7) with ESMTP id MAILCIADD024-d39f4acbc0f56c; Tue, 06 Oct 2009 18:13:10 -0400 Received: from webmail-m031 (webmail-m031.sim.aol.com [64.12.101.214]) by smtprly-dc03.mx.aol.com (v125.7) with ESMTP id MAILSMTPRLYDC031-d39f4acbc0f56c; Tue, 06 Oct 2009 18:13:09 -0400 References: <7C7E8BA2E4774209B0F33D2E5FFABE2F@HPt680a>, <533316794.1254824265.716020824.98658@mcgi14.rambler.ru> <4ACB1D21.30499.1157C60@dave.davesergeant.com> <4EA34C1D84624509BA88988D549DC2DA@HPt680a> To: rsgb_lf_group@blacksheep.org Date: Tue, 06 Oct 2009 18:13:09 -0400 In-Reply-To: <4EA34C1D84624509BA88988D549DC2DA@HPt680a> X-MB-Message-Source: WebUI MIME-Version: 1.0 From: Markus Vester X-MB-Message-Type: User X-Mailer: Webmail 28200-STANDARD Received: from 92.116.42.217 by webmail-m031.sysops.aol.com (64.12.101.214) with HTTP (WebMailUI); Tue, 06 Oct 2009 18:13:09 -0400 Message-Id: <8CC14E95268C6D3-5F80-23517@webmail-m031.sysops.aol.com> X-Spam-Flag:NO X-AOL-SENDER: MarkusVester@aol.com X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,UNPARSEABLE_RELAY=0.001 Subject: Re: LF: Re: Re: What is on 499.993 kcs ? Content-Type: multipart/alternative; boundary="--------MB_8CC14E9527BD1DB_5F80_483AA_webmail-m031.sysops.aol.com" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_20_30,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 ----------MB_8CC14E9527BD1DB_5F80_483AA_webmail-m031.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Hi Steve, Dave, as far as I know, the=C2=A0PAL colour subcarrier=C2=A0is supposed=C2=A0to= be locked to the line and field rates, but with an intentional offset fro= m an integer 25 Hz multiple to provide some "blurring" of possible moiree= effects.=C2=A0Ideally, the line frequency should be accurately on 15625= Hz.=C2=A0The German ZDF timebase=C2=A0used to be=C2=A0derived from the PT= B atomic clocks in Braunschweig and could be traced to UTC, but nowadays= analog terrestrial TV transmitters have pretty much disappeared here. Best regards, Markus, DF6NM -----Urspr=C3=BCngliche Mitteilung-----=20 Von: VK2ZTO An: rsgb_lf_group@blacksheep.org Verschickt: Di., 6. Okt. 2009, 13:24 Thema: LF: Re: Re: What is on 499.993 kcs ? G'day Dave,=C2=A0 =C2=A0 Yes - I did that calculation but came up with 500002.81 Hz - not 499993 Hz= .=C2=A0 =C2=A0 Still - that seems the most likely explanation as it is very stable.=C2=A0 =C2=A0 Thanks.=C2=A0 =C2=A0 73 Steve VK2ZTO (VK2XV)=C2=A0 =C2=A0 ----- Original Message ----- From: "Dave Sergeant" = =C2=A0 To: =C2=A0 Sent: Tuesday, October 06, 2009 9:34 PM=C2=A0 Subject: LF: Re: What is on 499.993 kcs ?=C2=A0 =C2=A0 > > Or more likely the 32nd harmonic of the 15.625kHz TV line ocillator >= rate. UK, UA and VK all use the 625 line PAL standard (though parts of >= USSR are Secam). The line rate is actually locked to the colour > subcarr= ier of 4.43361875 MHz which may account for the 7Hz shift at > 500kHz.=C2= =A0 > > 73 Dave G3YMC0 > > http://www.davesergeant.com=C2=A0 >=C2=A0 =C2=A0 ----------MB_8CC14E9527BD1DB_5F80_483AA_webmail-m031.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8"
Hi Steve, Dave,
 
as far as I know, the PAL colour subcarrier is supposed&nbs= p;to be locked to the line and field rates, but with an intentional offset= from an integer 25 Hz multiple to provide some "blurring" of possible moi= ree effects. Ideally, the line frequency should be accurately on 1562= 5 Hz. The German ZDF timebase used to be derived from the= PTB atomic clocks in Braunschweig and could be traced to UTC, but nowaday= s analog terrestrial TV transmitters have pretty much disappeared here.
 
Best regards,
Markus, DF6NM
 
-----Urspr=C3=BCngliche Mitteilung-----
Von: VK2ZTO <vk2zto@djirra.com>
An: rsgb_lf_group@blacksheep.org
Verschickt: Di., 6. Okt. 2009, 13:24
Thema: LF: Re: Re: What is on 499.993 kcs ?

G'day Dave, 
 
Yes - I did that calculation but came up with 500002.81 Hz - not 499993 Hz= . 
 
Still - that seems the most likely explanation as it is very stable. =
 
Thanks. 
 
73 Steve VK2ZTO (VK2XV) 
 
----- Original Message ----- From: "Dave Sergeant" <dave@davesergeant.com> 
To: <rsgb_lf_group@blac= ksheep.org> 
Sent: Tuesday,=20 October 06, 2009 9:34 PM 
Subject: LF: Re: What is on 499.993 kcs ? 
 
> > Or more likely the 32nd harmonic of the 15.625kHz TV line ocilla= tor > rate. UK, UA and VK all use the 625 line PAL standard (though par= ts of > USSR are Secam). The line rate is actually locked to the colour= > subcarrier of 4.43361875 MHz which may account for the 7Hz shift at= > 500kHz. 
> > 73 Dave G3YMC 
> > http://= www.davesergeant.com 
> 
 
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