Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mh06.r1000.mx.aol.com (Internet Inbound) with ESMTP id A1E273800009B; Fri, 6 Jan 2012 07:28:08 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Rj8su-0003cM-2B for rs_out_1@blacksheep.org; Fri, 06 Jan 2012 12:27:00 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Rj8st-0003cC-He for rsgb_lf_group@blacksheep.org; Fri, 06 Jan 2012 12:26:59 +0000 Received: from smtpout1.wanadoo.co.uk ([80.12.242.29] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Rj8sr-0005G4-09 for rsgb_lf_group@blacksheep.org; Fri, 06 Jan 2012 12:26:59 +0000 Received: from AGB ([2.26.30.121]) by mwinf5d13 with ME id JCSq1i00C2cnUrE03CSqtH; Fri, 06 Jan 2012 13:26:51 +0100 Message-ID: From: "Graham" To: Date: Fri, 6 Jan 2012 12:26:50 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 X-Antivirus: avast! (VPS 120106-0, 06/01/2012), Outbound message X-Antivirus-Status: Clean X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,RCVD_ILLEGAL_IP=0.234,SUBJ_ALL_CAPS=1.166 Subject: LF: A COMIC OPERA Content-Type: multipart/alternative; boundary="----=_NextPart_000_0066_01CCCC6E.772D0610" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_70_80,HTML_MESSAGE, MISSING_OUTLOOK_NAME,SUBJ_ALL_CAPS 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-SCORE: 0:2:343016480:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d60da4f06e8d75555 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_0066_01CCCC6E.772D0610 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable A COMIC OPERA=20 =20 Just some observations on the recent posts=20 =20 As to the legality of this or any other digital mode , the words = of Gilbert and Sullivan , in there satire of the RN , HMS Pinafore = seem's to fit as to the use of such thing's=20 =20 What, never? / No, never! / What, never? / Well, hardly ever! =20 As pointed out , 'we' all use code packages that are locked , = commercial modem's , the parasitic development and commercialisation = of D-Star , the MS Windows system being used to type this message = are all locked, so yes would be nice , but then so would many = thing's... =20 My licence prohibits the use of secret code or cipher , as the = author is identified and the code my be freely downloaded, I hardly = regard it's use as a breach, further more, with development being = undertaken on 500, is that not what the experimental permit was all = about. =20 Band Co Occupancy, A the start of testing , 500 was quite empty , = with the split of allocations even wspr activity from EU had all = but ceased , the zone occupied at the moment has traditionally been = used for data transmission in the UK.=20 =20 Data Efficiency =20 The only real test of data transmission is the carrier power = required , Gary's transmission to VO1NA , is significant , if = comparison is made with existing techniques. =20 The full call sign was received six times in a two hour = period , using a Tx time of eight minutes per cycle . The duty = cycle of OP is approx 50% , therefore , the total carrier = required was four minutes .=20 =20 Using 4 minutes of carrier 250 mW erp was enough to cross 3500 = Km from the s/n levels at the rx , its possible that -3dB lower = could of been used , round 100 mW .. At the moment Opera offers = a beacon mode with s/n performance far in excess of existing = systems with access to all =20 =20 Surely this opens 136 to more users ? =20 =20 ------=_NextPart_000_0066_01CCCC6E.772D0610 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

A  = COMIC=20   OPERA=20

    

Just some observations on the recent posts=20

 

As  = to  the  legality of this  or =20 any other  = digital  mode , the words  of =20 Gilbert and  = Sullivan , in=20 there satire  of the  RN , HMS Pinafore seem's  to fit  as =20 to the use  of  such thing=92s =

 

What, never? / No, never! / What, never? / = Well, hardly=20 ever!

 

As  = pointed=20 out , =91we=92  all  use  code  packages that  are  locked , commercial  modem=92s  , the parasitic = development  and  commercialisation  of =20 D-Star , the  MS = Windows=20  system being used to  type this  message  are all  locked, so  yes would be nice , but = then  so =20 would many thing=92s...

 

My =20 licence  prohibits = the  use  of =20 secret code or cipher , as the =20 author is  = identified  and the  code my be  freely  downloaded, I hardly regard = it=92s  use as  a =20 breach, further  = more,=20 with  development  being  undertaken on 500, is = that  not what  the experimental  permit was  all  about.

 

Band Co Occupancy, =20 A the  start  of testing , 500  was  quite  empty , with the split of  allocations  even  wspr  activity from EU had all  but ceased , the  zone occupied at the moment = has  traditionally  been used for  data  transmission  in =20 the  UK. =

 

Data =20 Efficiency

 

The =20 only  real  test of  data  transmission  is =20 the  carrier = power   required , Gary=92s   transmission  to =20 VO1NA , is  = significant , if=20 comparison  is made  with  existing  techniques.

 

The =20 full  call  sign  was  received  six  times  in a  two  hour  period , using  a =20 Tx time  of  eight minutes  per cycle  . The  duty  cycle  of =20 OP is  approx  50% , therefore  , the  total  carrier  required  was   four minutes  .

 

Using  =20  4 minutes of = carrier  250 mW  erp   was enough  to =20 cross  3500 Km =  from the  s/n levels  at the rx ,  its possible  that   -3dB lower  could  of been  used  , round  100 mW  .. At the =20 moment  Opera  offers  a  beacon  mode  = with =20 s/n  performance far in excess  of  existing  = systems =20 with  access  to  all 

 

Surely this opens 136  to =20 more  users  ?

 

 

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