Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mc06.r1000.mx.aol.com (Internet Inbound) with ESMTP id B9D143800008F; Thu, 6 Sep 2012 06:26:19 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1T9ZGh-0007fg-Mv for rs_out_1@blacksheep.org; Thu, 06 Sep 2012 11:25:03 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1T9ZGg-0007fX-Se for rsgb_lf_group@blacksheep.org; Thu, 06 Sep 2012 11:25:02 +0100 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1T9ZGb-0004EH-Ky for rsgb_lf_group@blacksheep.org; Thu, 06 Sep 2012 11:25:01 +0100 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id q86AOuV4008027 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 6 Sep 2012 12:24:56 +0200 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id q86AOuex002643 for ; Thu, 6 Sep 2012 12:24:56 +0200 Message-ID: <5048793D.3060000@iup.uni-heidelberg.de> Date: Thu, 06 Sep 2012 12:21:49 +0200 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <003401cd8b95$21d0c350$0501a8c0@xphd97xgq27nyf> <005401cd8ba6$af9aeb50$0501a8c0@xphd97xgq27nyf> <294A67737400486BBEFAF0DCCB2BCA70@your90dbbc54af> <001301cd8c02$23a39a00$0501a8c0@xphd97xgq27nyf> In-Reply-To: <001301cd8c02$23a39a00$0501a8c0@xphd97xgq27nyf> X-Spam-Score: -0.7 (/) 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 Bruce, Mal, MF, Marconi transmitters? That sounds nostalgic. How old are they and what is the covered frequency range and max. output power and weight? I would like to hear such a chirpy CW signal on the band. It is authentic :-) Reminds me on my first days on HF, where most of the russian stations had such a signal sound. I like it. What a hobby, it never stops me from loosing the fascination. Oh yes, hand given CW with a traditional key. I must try that soon. But my skills are very limited (not like when using CW paddles)... Yesterday i've been on the monthly meeting of the local radio club. There are many OMs starting to build some components for 630m. Maybe it will be a very populated band next year. Looking forward to that :-) [...] Content analysis details: (-0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [129.206.100.212 listed in list.dnswl.org] 0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: ffe713a28f995f248841b38a647a96f7 Subject: Re: LF: Re: Re: Re: Re: MF CW QSO /Marconi transmitters Content-Type: multipart/alternative; boundary="------------070801080000000307060009" 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 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-sid: 3039ac1d604e50487a4a0bf7 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. --------------070801080000000307060009 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Hi Bruce, Mal, MF, Marconi transmitters? That sounds nostalgic. How old are they and what is the covered frequency range and max. output power and weight? I would like to hear such a chirpy CW signal on the band. It is authentic :-) Reminds me on my first days on HF, where most of the russian stations had such a signal sound. I like it. What a hobby, it never stops me from loosing the fascination. Oh yes, hand given CW with a traditional key. I must try that soon. But my skills are very limited (not like when using CW paddles)... Yesterday i've been on the monthly meeting of the local radio club. There are many OMs starting to build some components for 630m. Maybe it will be a very populated band next year. Looking forward to that :-) 73, Stefan/DK7FC Am 06.09.2012 09:35, schrieb mal hamilton: > Hi Bruce > All those Marconi Transmitters were Chirpy in VFO mode, the T1154 was > terrible to listen to slushing on/off in CW. How did they ever pass > quality control !! in production. > The USA equipment at the time was generally very good Collins TCS 6 > etc and the Amateur radio equipment was also good. > All equipmentIt is pretty good today, different technology and high > quality components. > Most of my equipment for LF/MF has been home built although I now have > some modified Decca Amplifiers in service. > Will look out for you again. I am active most days both on LF es MF > but CW acty is poor these days compared to years ago especially on > 137 Khz. MF might improve next year when everyone is on 472 -479 > 73 de mal/g3kev > > ----- Original Message ----- > *From:* Bruce Morris > *To:* rsgb_lf_group@blacksheep.org > > *Sent:* Wednesday, September 05, 2012 9:17 PM > *Subject:* LF: Re: Re: Re: MF CW QSO > > Mal, tks for the QSO. > I have a massive carrier here spot on 501 which is making any > reception on adjacent freqs v difficult. > Rx is a Redifon R408 with good MF sensitivity and excellent vbl > bandwith filters but even then it was difficult to separate your > sigs out. > The QSO was a bit tricky because I had to swap the Ae over between > Tx & Rx. > Also, I had no sidetone just the clunk of the key and subsequent > relays. > RST was nearer 229. > Source is a Marconi Marine Oceanspan 7 Tx. > The Tx is xtal controlled but has a LC osc as reserve in case the > 500kHz Xtal goes down. > I have tweaked it up to 501. > Unfortunately the HT supply to the osc is not sufficiently > stabilised so I am surprised you gave me T=9 despite the distinct > birdie tone!. > The Tx has 3 x 807s in the finals running 800V at 80mA into an > impressive variometer. > I am putting out abt 2 amps of RF into a LW Ae. > More work will be required to get a good stable signal out on 472 > when we get it. > Rgds > Bruce GW4XXF > > ----- Original Message ----- > *From:* mal hamilton > *To:* rsgb_lf_group@blacksheep.org > > *Sent:* Wednesday, September 05, 2012 9:40 PM > *Subject:* LF: Re: Re: MF CW QSO > > Cannot hear u > mal/g3kev > > ----- Original Message ----- > *From:* Bruce Morris > *To:* rsgb_lf_group@blacksheep.org > > *Sent:* Wednesday, September 05, 2012 8:26 PM > *Subject:* LF: Re: MF CW QSO > > Are you about for a quick try on 501kHz right now? I will > be quite chirpy! GW4XXF > > ----- Original Message ----- > *From:* mal hamilton > *To:* rsgb > *Sent:* Wednesday, September 05, 2012 7:34 PM > *Subject:* LF: MF CW QSO > > Anyone about for a CW qso on 472/500 Khz > Daylight suitable for me, no need to work in the dark > de g3kev > --------------070801080000000307060009 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hi Bruce, Mal, MF,

Marconi transmitters? That sounds nostalgic. How old are they and what is the covered frequency range and max. output power and weight?
I would like to hear such a chirpy CW signal on the band. It is authentic :-) Reminds me on my first days on HF, where most of the russian stations had such a signal sound. I like it.
What a hobby, it never stops me from loosing the fascination.
Oh yes, hand given CW with a traditional key. I must try that soon. But my skills are very limited (not like when using CW paddles)...
Yesterday i've been on the monthly meeting of the local radio club. There are many OMs starting to build some components for 630m. Maybe it will be a very populated band next year. Looking forward to that :-)

73, Stefan/DK7FC


Am 06.09.2012 09:35, schrieb mal hamilton:
Hi Bruce
All those Marconi Transmitters were Chirpy in VFO mode, the T1154 was terrible to listen to slushing on/off in CW. How did they ever pass quality control !! in production.
The USA equipment at the time was generally very good Collins TCS 6 etc and the Amateur radio equipment was also good.
All equipmentIt is pretty good today, different technology and high quality components.
Most of my equipment for LF/MF has been home built although I now have some modified Decca Amplifiers in service.
Will look out for you again. I am active most days both on LF es MF but CW acty is poor these days compared to years ago especially on  137 Khz. MF might improve next year when everyone is on 472 -479
73 de mal/g3kev
 
 
 
----- Original Message -----
Sent: Wednesday, September 05, 2012 9:17 PM
Subject: LF: Re: Re: Re: MF CW QSO

Mal, tks for the QSO.
I have a massive carrier here spot on 501 which is making any reception on adjacent freqs v difficult.
Rx is a Redifon R408 with good MF sensitivity and excellent vbl bandwith filters but even then it was difficult to separate your sigs out.
The QSO was a bit tricky because I had to swap the Ae over between Tx & Rx.
Also, I had no sidetone just the clunk of the key and subsequent relays.
RST was nearer 229.
Source is a Marconi Marine Oceanspan 7 Tx.
The Tx is xtal controlled but has a LC osc as reserve in case the 500kHz Xtal goes down.
I have tweaked it up to 501.
Unfortunately the HT supply to the osc is not sufficiently stabilised so I am surprised you gave me T=9 despite the distinct birdie tone!.
The Tx has 3 x 807s in the finals running 800V at 80mA into an impressive variometer. 
I am putting out abt 2 amps of RF into a LW Ae.
 
More work will be required to get a good stable signal out on 472 when we get it.
 
Rgds
 
Bruce  GW4XXF
----- Original Message -----
Sent: Wednesday, September 05, 2012 9:40 PM
Subject: LF: Re: Re: MF CW QSO

Cannot hear u
mal/g3kev
 
----- Original Message -----
Sent: Wednesday, September 05, 2012 8:26 PM
Subject: LF: Re: MF CW QSO

Are you about for a quick try on 501kHz right now? I will be quite chirpy! GW4XXF
----- Original Message -----
To: rsgb
Sent: Wednesday, September 05, 2012 7:34 PM
Subject: LF: MF CW QSO

Anyone about for a CW qso on 472/500 Khz
Daylight suitable for me, no need to work in the dark
de g3kev
 
--------------070801080000000307060009--