Return-Path: Received: from rly-dc01.mx.aol.com (rly-dc01.mail.aol.com [172.19.136.30]) by air-dc04.mail.aol.com (v121_r2.12) with ESMTP id MAILINDC043-afd48d01530292; Tue, 16 Sep 2008 16:21:36 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-dc01.mx.aol.com (v121_r2.11) with ESMTP id MAILRELAYINDC011-afd48d01530292; Tue, 16 Sep 2008 16:21:06 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Kfh1Q-0003vf-Ms for rs_out_1@blacksheep.org; Tue, 16 Sep 2008 21:19:40 +0100 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Kfh1P-0003vW-T1 for rsgb_lf_group@blacksheep.org; Tue, 16 Sep 2008 21:19:39 +0100 Received: from smtp5.freeserve.com ([193.252.22.151] helo=smtp6.freeserve.com) by relay2.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Kfh1L-0003GD-4F for rsgb_lf_group@blacksheep.org; Tue, 16 Sep 2008 21:19:39 +0100 Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3543.me.freeserve.com (SMTP Server) with ESMTP id 4D31B1C00088 for ; Tue, 16 Sep 2008 22:19:29 +0200 (CEST) Received: from AGB (unknown [91.110.72.210]) by mwinf3543.me.freeserve.com (SMTP Server) with SMTP id CB2FF1C00083 for ; Tue, 16 Sep 2008 22:19:28 +0200 (CEST) X-ME-UUID: 20080916201928832.CB2FF1C00083@mwinf3543.me.freeserve.com Message-ID: <9A9AD437202C42D49138D992A638F8AE@AGB> From: "Graham" To: References: <08B04CB16BCB423BA193046E335149D4@enigma> <3A14A01B61B1491EA2DB51399DEEBD0A@AGB> <22924434B76D40AEBFD1BA48C2425C44@enigma> Date: Tue, 16 Sep 2008 21:19:27 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 12.0.1606 X-MimeOLE: Produced By Microsoft MimeOLE V12.0.1606 X-Spam-Score: 0.3 (/) X-Spam-Report: autolearn=disabled,AWL=0.336,HTML_MESSAGE=0.001 Subject: Re: LF: PSK31 on 500kHz? Content-Type: multipart/alternative; boundary="----=_NextPart_000_0094_01C91841.E6A6ED10" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_40_50,HTML_MESSAGE, MISSING_OUTLOOK_NAME 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: domain : post.thorcom.com ; SPF_helo = n X-AOL-SCOLL-AUTHENTICATION: domain : g8fzk.fsnet.co.uk ; SPF_822_from = n ------=_NextPart_000_0094_01C91841.E6A6ED10 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Ok Malcolm, That looks a good set up , I used 20 watts last year for all the data 'exper= iments' cheating a little with a Racal MA1723 exciter driving a 24v dc clas= s A inter-stage drive amplifier , yes it did need a fan ! and the RA6790GM=20= , not quite home brew, but after prolonged introduction to the MA1723 in fau= lt mode, im not sure where the dividing line is ( potted history http://gro= ups.google.com/group/uk500khz/web/the-ma1723-liniarity-at-a-price )=20 You may find the 'FLDIGI' software is worth a look, as it has narrow band ve= rsions of the mfsk modes that will pass via non linear (amplitude) systems =20= and the simultaneous multi tone modes , olivia for example. With the long qs= b outages on 500 , this software also had an add on, giving a arq function t= o 'all' the modes, which may enable communications at extended range , out=20= of all the systems, (apart from the K1JT enhanced processing modes) I found= the narrow version of olivia gave the best 'extended' copy at range . down= load link > http://www.w1hkj.com/Fldigi.html There are links and the results of various tests etc located on the 'pages'=20= at http://groups.google.com/group/uk500khz along with links to the active=20= 500 Khz grabbers=20 Good luck,=20 Hopefully 'back soon' as it says on the door ! Graham .. =20 From: Malcolm Harman=20 Sent: Tuesday, September 16, 2008 8:55 AM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: PSK31 on 500kHz? Hi Graham. I use an Icom 7400 in duplex (TX 3501-3504 kHz, RX 501-504 kHz). The transmi= t chain is via a home brew 'analogue' downconverter and a rebuilt ENI 320L 2= 0 watt linear, so hope to put out a nice clean PSK. Software, Ham Radio deLu= xe/DM780. Please let me know when you are ready to have a go.=20 Many thanks Malcolm G3NZP ----- Original Message -----=20 From: Graham=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Monday, September 15, 2008 8:16 PM Subject: Re: LF: PSK31 on 500kHz? Hi Mal, Well when i finally re instate the 'mf' room , should be back on 'soon ,= I think there is fsk rtty still about,=20 what system are you running on 500, assume its linear ?=20 Graham=20 G0NBD.=20 IO83LK=20 From: Malcolm Harman=20 Sent: Monday, September 15, 2008 5:32 PM To: rsgb_lf_group@blacksheep.org=20 Subject: LF: PSK31 on 500kHz? Hello folks - just rejoined the LF reflector. Is there anybody out there using PSK31 on 500 kHz and if so, what is your=20= usual frequency/time of operating? I should be QRV using this mode within th= e next couple of days.=20 My QTH is in West Sussex and I've already had day time CW QSOs up 100 km i= n spite of a very poor antenna system, but plans are in hand to improve effi= ciency. 73 Malcolm G3NZP ----------------------------------------------------------------------------= -- No virus found in this incoming message. Checked by AVG - http://www.avg.com=20 Version: 8.0.169 / Virus Database: 270.6.21/1672 - Release Date: 9/15/2008= 09:21 ----------------------------------------------------------------------------= ---- No virus found in this incoming message. Checked by AVG - http://www.avg.com=20 Version: 8.0.169 / Virus Database: 270.6.21/1672 - Release Date: 9/15/2008 0= 9:21 ------=_NextPart_000_0094_01C91841.E6A6ED10 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Ok Malcolm,
 
That looks a good set up , I used 20 watts=20= last=20 year for all the data 'experiments' cheating a little with a Racal MA1723&nb= sp;=20 exciter driving a 24v dc class A inter-stage drive amplifier , yes it did ne= ed a=20 fan !  and the RA6790GM , not quite home brew, but after prolonged=20 introduction to the MA1723 in fault mode, im not sure where the dividing lin= e is=20 ( potted history  http://groups.google.com/group/uk500khz/web/the-ma1723-liniarity-at-a-p= rice )=20
 
You may find the 'FLDIGI' software is worth= a look,=20 as it has narrow band versions of the mfsk modes that will pass via non line= ar=20 (amplitude) systems  and the simultaneous multi tone modes , olivia for= =20 example. With the long qsb outages on 500 , this software also had an add on= ,=20 giving a arq function to  'all' the modes, which may enable communicati= ons=20 at extended range , out of all the systems, (apart from the  K1JT enhan= ced=20 processing modes) I found the narrow version of olivia gave the best 'extend= ed'=20 copy at range .  download link > = http://www.w1hkj.com/Fldigi.= html
 
There are links and the results of various=20= tests=20 etc located on the 'pages'  at  http://groups.google.com/group/uk500khz = ;along=20 with links to the active 500 Khz grabbers
 
 
Good luck,
 
Hopefully 'back soon' as it says=20= on the=20 door !
 
Graham ..  
 
 
 
 
 
 

Sent: Tuesday, September 16, 2008 8:55 AM
Subject: Re: LF: PSK31 on 500kHz?

Hi Graham.
 
I use an Icom 7400 in duplex (TX=20 3501-3504 kHz, RX 501-504 kHz). The transmit chain is via a home brew=20 'analogue' downconverter and a rebuilt ENI 320L 20 watt linear, so hope to p= ut=20 out a nice clean PSK. Software, Ham Radio deLuxe/DM780.
 
Please let me know when you are ready=20= to=20 have a go.
Many thanks
Malcolm
G3NZP
----- Original Message -----
Graham
Sent: Monday, September 15, 2008 8:= 16=20 PM
Subject: Re: LF: PSK31 on 500kHz?

Hi Mal,
 
Well when i finally re instate the =20= 'mf'=20 room , should be back on 'soon  ,  I think there is fsk rtty sti= ll=20 about,
 
what system are you running on 500, assum= e its=20 linear  ?
 
Graham
 
G0NBD.
 
IO83LK
 
 
 

Sent: Monday, September 15, 2008 5:32 PM
Subject: LF: PSK31 on 500kHz?

Hello folks - just rejoined the LF=20 reflector.
 
Is there anybody out there using PSK= 31 on=20 500 kHz and if so, what is your usual frequency/time o= f=20 operating? I should be QRV using this mode within the next couple of=20 days.
 
My QTH is in West Sussex and I've al= ready=20 had day time CW QSOs up 100 km in spite of a very poor antenna system, but= =20 plans are in hand to improve efficiency.
 
73 Malcolm
G3NZP


No virus found in this incoming message.
Checked by AVG -=20 http://www.avg.com
Version: 8.0.169 / Virus Database: 270.6.21/1672 -=20 Release Date: 9/15/2008 09:21


No virus found in this incoming message.
Checked by AVG -=20 http://www.avg.com
Version: 8.0.169 / Virus Database: 270.6.21/1672 -=20 Release Date: 9/15/2008 09:21
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