Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mi03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 190A5380000BB; Thu, 25 Oct 2012 17:54:14 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1TRVMe-0008FW-T0 for rs_out_1@blacksheep.org; Thu, 25 Oct 2012 22:53:20 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1TRVMe-0008FN-42 for rsgb_lf_group@blacksheep.org; Thu, 25 Oct 2012 22:53:20 +0100 Received: from nm19-vm0.bullet.mail.ird.yahoo.com ([77.238.189.92]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1TRVLM-0000h1-8g for rsgb_lf_group@blacksheep.org; Thu, 25 Oct 2012 22:53:19 +0100 Received: from [77.238.189.48] by nm19.bullet.mail.ird.yahoo.com with NNFMP; 25 Oct 2012 21:51:46 -0000 Received: from [212.82.108.240] by tm1.bullet.mail.ird.yahoo.com with NNFMP; 25 Oct 2012 21:51:46 -0000 Received: from [127.0.0.1] by omp1005.mail.ird.yahoo.com with NNFMP; 25 Oct 2012 21:51:45 -0000 X-DKIM-Result: Domain=yahoo.co.uk Result=Good and Known Domain X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 996272.73506.bm@omp1005.mail.ird.yahoo.com Received: (qmail 69919 invoked by uid 60001); 25 Oct 2012 21:51:45 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.co.uk; s=s1024; t=1351201905; bh=AK7OF0OKAQ1zBymS+imoJ9VNEqlx0JAwywW2/6BjeX8=; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=l2ruQ60qMkOwj5g78INPGAVxy22S03lmH4tX0mPCSXHZYgANQEzHbvU4/wMnJRxg+Yfm+GFEa9VGKT405mvqf0icBkVi3JapfcxcgxpntA4xBGMamLDLNWb6j7McMq5GQH5d5SxZy1bg/JDfMY6quTkbzaPALcQb57kg8rC253o= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.co.uk; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=JKvPo3IptgZWXIWjEb/RbcVM08rHfVlkZxorZ6YA+DiGpLalHoYdJ6YYx0GYOS8rAjabgnb/W/mOd7WQvNtCfd87TydvvXVBoDVJ0dgYmiRpfahJdeGcdtKaFnNDnr5My+BBfEmHcA76aDQnmNMe000B575hKKLgy20NPGUt1qo=; X-YMail-OSG: knWn1BAVM1mKydIyofaDiwq4kHRoRQ52IwYnsTCR0anTrAm FzqqwU8HtmxVP_FVwIxFS7xMxM9Oy.XBVwTkZg2_e4iRjDOwng63BKU0D4R2 VZgb961vIZLQwJEWzV9V9rrimKY9s9CgYyUqTVUNtP8EG4KLKmbGp_MbgV4X nkaVMtYc74F.jMTWyMR9jLSGFfnbtEIfuiRyueEPis70Cybl8UaWEbW0nM5o jMuOSvulw942wBW_JkKZlmzrhHxbbT5elungNH1Srs8eaqUwYQj8L8AYQOsH H6Wfdccm56_Z32B_coNq7j3n0x0Kk3C35WTInbv84uezivChLsoxj7.IiwfV A6IL55QNnZnbPMg5AupLrmvr3QLjbiV2fX4lLuvtLZL99wOe.0DtzfAkBwIm jMugsJ2uWQp2mNn8LU5Oosvv.1M24BVxFUoj2IaFJhfVVWuWaBWgYBAGBbTH 6FFwLQD6XZE2X3lrB Received: from [81.129.58.94] by web133204.mail.ir2.yahoo.com via HTTP; Thu, 25 Oct 2012 22:51:45 BST X-Rocket-MIMEInfo: 001.001,SGkgYWxsCsKgCk1hZ25ldG9zdHJpY3RpdmUgbWlycm9yIG1vZHVsYXRpb24_IGFuZCBvdGhlciBtZXRob2RzIGxpa2UgcG9sYXJpc2Vycy4gRGF0YSBzd2l0Y2hpbmcgb24gdGhlIGZseSwgaXMgZG9uZSBhdCBsaWdodCBtZWRpdW3CoG5vIHRyYW5zaXRpb25zIGZyb20gbGlnaHQgdG8gZWxlY3RvbiBtZWRpdW0gYW5kIGJhY2sswqB0YWtlcyB3YXkgdG9vIGxvbmcgaW4gdGhlIHdvcmxkIG9mIHRoZSBUZXJyYWJpdGUuCgo3MyBlcyBHTCBQZXRlIE0wRk1UIElPOTFVWAoKCj5fX19fX19fX19fX19fX19fX19fX18BMAEBAQE- X-Mailer: YahooMailWebService/0.8.123.450 References: <4084B089A7FF496CAC1CE9A2459B9C47@AGB> <7E9EB5FA653147298EEBB4676DCDD9DD@White> <3DD7F0DC19984F7CBF611D59430EEFA3@AGB> <508912A0.5060902@iup.uni-heidelberg.de> <648CE70A981F42D9BD696ECDCE4CBF96@AGB> <1351185351.1901.YahooMailNeo@web133206.mail.ir2.yahoo.com> Message-ID: <1351201905.50131.YahooMailNeo@web133204.mail.ir2.yahoo.com> Date: Thu, 25 Oct 2012 22:51:45 +0100 (BST) From: M0FMT To: "rsgb_lf_group@blacksheep.org" In-Reply-To: MIME-Version: 1.0 X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hi all Magnetostrictive mirror modulation? and other methods like polarisers. Data switching on the fly, is done at light medium no transitions from light to electon medium and back, takes way too long in the world of the Terrabite. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [77.238.189.92 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (m0fmt[at]yahoo.co.uk) 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: b45446db24846e84db90eb694609e205 Subject: Re: LF: OPERA OPTICAL BEACON (way off topic) but is based on 17 KHz :) Content-Type: multipart/alternative; boundary="856002529-803780424-1351201905=:50131" 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_50_60,HTML_MESSAGE, TO_ADDRESS_EQ_REAL 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-global-disposition: G X-AOL-SCOLL-AUTHENTICATION: mtain-mi03.r1000.mx.aol.com ; domain : yahoo.co.uk DKIM : fail x-aol-sid: 3039ac1d7b8b5089b5065e0b X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --856002529-803780424-1351201905=:50131 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Hi all=0A=A0=0AMagnetostrictive mirror modulation? and other methods like p= olarisers. Data switching on the fly, is done at light medium=A0no transiti= ons from light to electon medium and back,=A0takes way too long in the worl= d of the Terrabite.=0A=0A73 es GL Pete M0FMT IO91UX=0A=0A=0A>______________= __________________=0A> From: Graham =0A>To: rsgb_l= f_group@blacksheep.org =0A>Sent: Thursday, 25 October 2012, 19:07=0A>Subjec= t: Re: LF: OPERA OPTICAL BEACON (way off topic) but is based on 17 K= Hz :)=0A> =0A>=0A> =0A>Ah yes=A0 , but those=A0 are =A0 not=A0 liner ? ,= =A0 =0Acannot=A0 modulate=A0 a=A0 laser=A0 , only =A0 on/off=A0 =0Aserial= =A0 ?=A0 =0A>=0A>=0A>G.=A0 =0A>=0A> =0A>From: M0FMT =0A>Sent: Thursday, O= ctober 25, 2012 6:15 PM =0A>To: rsgb_lf_group@blacksheep.org =0A>Subject: = Re: LF: OPERA OPTICAL BEACON (way off topic) but is based =0Aon 17 KHz :) = =0A>=0A> =0A>Hi All =0A>=A0 =0A>You need erbium doped glass amplifiers like= we used on long distance =0Afibre networks. =0A>=0A>73 es GL Pete M0FMT IO= 91UX=0A> =0A>=0A>>________________________________=0A>>From: Graham =0A>>To: rsgb_lf_group@blacksheep.org =0A>>Sent: Thursday= , 25 October 2012, 17:43=0A>>Subject: Re: LF: OPERA OPTICAL BEACON (way o= ff topic) but is based on 17 KHz :)=0A>>=0A>>=0A>>Like=A0 you Stefan,=A0 t= hese=A0 pioneers are=A0 pushing=A0 the=A0 limits=A0 , using=A0 heat pumps= =A0 to=A0 cool the=A0 light=A0 source, the=A0 source is=A0 as small=A0 as = possible to=A0 ensure=A0 good coupling ..=A0 reducing=A0 the=A0 duty cycl= e=A0 as=A0 in radio=A0 can=A0 be a=A0 big=A0 help ...=A0 but=A0 as I say= =A0 its a=A0 tool=A0 , if=A0 anyone=A0 wants to=A0 try , it=A0 puts=A0 all= the=A0 features in one=A0 box=A0 =0A>>=0A>>G.. =0A>>=0A>> =0A>>From: St= efan Sch=E4fer =0A>>Sent: Thursday, October 25, 2012 11:21 AM =0A>>To: rsg= b_lf_group@blacksheep.org =0A>>Subject: Re: LF: OPERA OPTICAL BEACON (way = off topic) but is based on 17 KHz :) =0A>>=0A>>=0A>>Am 25.10.2012 01:34, s= chrieb Graham: =0A>>[...] =0A>>>=0A>>>fsk=A0 , of=A0 course , but=A0 simpli= city is=A0 the=A0 object=A0 , switching the=A0(led)=A0 light=A0 off=A0 an= d=A0 on could=A0=A0 reduce the=A0 duty=A0 by=A0 50%=A0 where=A0 heat is=A0= a problem ,[...]=0A>>>=0A>>Why should it be an =0A advantage to reduce th= e duty cycle to 50% and where do you expect heat =0A problems when driving= a LED? =0A>>=0A>>Yes there are some high power modules but =0A even 10W p= ower dissipation should be managable for everyone.=0A>>=0A>>73, =0A Stefan= /DK7FC=0A>> =0A>>=0A>> =0A>=0A> --856002529-803780424-1351201905=:50131 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Hi all
=
Magnetostrictive mirror modulation? and = other methods like polarisers. Data switching on the fly, is done at light = medium no transitions from light to electon medium and back, take= s way too long in the world of the Terrabite.
 
=
73 es GL Pete M0FMT IO91UX
From: Graham <= g8fzk@g8fzk.fsnet.co.uk>
To: rsgb_lf_group@blacksheep.org
Sent: Thursday, 25 October 2012, 19:07
Subject: Re: LF: OPERA OPTICAL BEACON= (way off topic) but is based on 17 KHz :)

=0A=0A =0A =0A
=0A
Ah yes  , but those  are   = not  liner ? ,  =0Acannot  modulate  a  laser = ; , only   on/off  =0Aserial  ? 
=0A
 =0A
 
=0A
G. 
=0A
=0A

=0A
=0A
From: = M0FMT =0A
Sent: Thursday, October 25, 2012 6:15 PM
=0A=0A
Subject: Re: LF: OPERA OPT= ICAL BEACON (way off topic) but is based =0Aon 17 KHz :)
= =0A

=0A
=0A
Hi All
=0A
 
= =0A
You need erbium doped glass amplifiers like we used on long d= istance =0Afibre networks.
=0A
 
=0A
73 es GL= Pete M0FMT IO91UX
=0A
=0A
=0A
=0A
=0A
=0A
<= span style=3D"font-weight: bold;">From: Graham <g8fzk@g8fzk.fsnet.co.uk>
To: rsgb_lf_group@blacksheep.org =0A
Sent: Thursday, 25 October =0A 20= 12, 17:43
Subject: Re: = LF: =0A OPERA OPTICAL BEACON (way off topic) but is based on 17 KHz =0A := )

=0A =0A
=0A
=0A Like  you Stefan,  these  pioneers are  pushing = ; =0A the  limits  , using  heat pumps  to  cool = the  =0A light  source, the  source is  as small = as possible =0A to  ensure  good coupling ..  reducing&nbs= p; the  duty =0A cycle  as  in radio  can  be a&n= bsp; big  help =0A ...  but  as I say  its a  too= l  , if  =0A anyone  wants to  try , it  puts&nbs= p; all the  features =0A in one  box 
=0A
 = ;
=0A
G..
=0A
=0A

=0A
=0A
From: Stefan Sch=E4fer =0A
=0A Sent: Thursday, October 25, 2012 11:21 AM
=0A =0A Subject: Re: LF: OPERA OPTICAL BEACON (way off topic) but is based= =0A on 17 KHz :)
=0A


Am 25.10.2012 0= 1:34, schrieb Graham: =0A
=0A
[...]=0A
 
=0A
fsk  , of  course , but = ; simplicity is  the  =0A object  , switching the (l= ed)  light  off  =0A and  on could   reduc= e the  duty  by  =0A 50%  where  heat is  = a problem ,
[...]<= br>

Why should it be an =0A advantage to reduce the duty c= ycle to 50% and where do you expect heat =0A problems when driving a LED? =

Yes there are some high power modules but =0A even 10W power dissi= pation should be managable for everyone.

73, =0A Stefan/DK7FC
=0A=0A

=0A

--856002529-803780424-1351201905=:50131--