Return-Path: Received: from rly-dd05.mx.aol.com (rly-dd05.mail.aol.com [172.19.141.152]) by air-dd03.mail.aol.com (v121.5) with ESMTP id MAILINDD034-b7b4881a9b5209; Sat, 19 Jul 2008 04:45:49 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-dd05.mx.aol.com (v121.5) with ESMTP id MAILRELAYINDD055-b7b4881a9b5209; Sat, 19 Jul 2008 04:45:44 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1KK83i-0007PT-Tl for rs_out_1@blacksheep.org; Sat, 19 Jul 2008 09:44:54 +0100 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1KK83i-0007PK-8s for rsgb_lf_group@blacksheep.org; Sat, 19 Jul 2008 09:44:54 +0100 Received: from mtaout01-winn.ispmail.ntl.com ([81.103.221.47]) by relay2.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1KK83d-0001Cv-Md for rsgb_lf_group@blacksheep.org; Sat, 19 Jul 2008 09:44:54 +0100 Received: from aamtaout04-winn.ispmail.ntl.com ([81.103.221.35]) by mtaout01-winn.ispmail.ntl.com with ESMTP id <20080719084942.LLCQ28496.mtaout01-winn.ispmail.ntl.com@aamtaout04-winn.ispmail.ntl.com> for ; Sat, 19 Jul 2008 09:49:42 +0100 Received: from [192.168.2.33] (really [82.5.254.204]) by aamtaout04-winn.ispmail.ntl.com with ESMTP id <20080719084450.DOSK18637.aamtaout04-winn.ispmail.ntl.com@[192.168.2.33]> for ; Sat, 19 Jul 2008 09:44:50 +0100 From: "Mike Dennison" To: rsgb_lf_group@blacksheep.org Date: Sat, 19 Jul 2008 09:44:41 +0100 MIME-Version: 1.0 Message-ID: <4881B789.28848.24D949@mike.dennison.ntlworld.com> In-reply-to: References: X-mailer: Pegasus Mail for Windows (4.41) Content-description: Mail message body X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Rad Com / critical mass etc Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: Quoted-printable X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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: listenair ; SPF_helo : n X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_822_from : ? David is quite wrong in thinking that any lack of technical articles=20 in RadCom is because the Editor wants a quiet life. There is almost=20 no backlog of construction articles, but many on expeditions etc. I=20 am certain that the Editor would be delighted to receive one on=20 500kHz, or almost any other subject for that matter. The best=20 approach in the first instance is to contact the Technical Editor=20 (and former Acting Ediitor), Giles Read.=20 Mike, G3XDV =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > I think it may have been me who picked up Mal's expression "fizzled=20 > out" and applied it to the technical content, in particular > construction articles, in Rad Com. >=20 > Trying a little more seriously to look at the lack of activity on 500k > and the content of Rad Com, I would say that the two are related. I > can understand how the change in content in our magazine reflects=20 > similar unfortunate changes in other publications. I suspect this is > primarily driven by the desire to cut costs, after all changing to a > news based format allows the editor/s to simply cut and paste > articles from one source into the blank pages which will become a > future Rad Com. As a good example of cut and paste journalism, take > a look at the 'announcement' of Tent Speakers from a company called > 'Blacks' on page 10 of the August edition. You don't have to read > very far into that article to immediately see that it has been lifted > from some piece of advertising junk mail that's arrived at the office. > Heavily and badly edited, it's reduced size leaves out more facts > than it conveys. What for example is an EVA shell? Or come to that > NXT speakers? We'll never know, because that information didn't make > it into the space the editor had to fill. - A really good example of > poor editing and production. It's complete tat. >=20 > So, what's the link to 500k activity? Well, this group largely=20 > consists of very capable individuals who can use a soldering iron and > many of those can actively design equipment of some sort for 500k. > The thing we all lack is time and frequently we like to save those > long designing tasks for something that's right at the top of our > interest agenda. There would undoubtedly be more 500k operators if > tested and widely published designs were available. But we need more > than that. To really kick start 500k, someone needs to produce either=20 > kits or finished modules and that is where RadCom can be vital. In > the =20 > past I have produced designs and kits for 136kHz. The 300W amplifier > kit was one, and the completed ready to go 136kHz preamp, designed by > Dave G3YXM, was another. I was really surprised that although the > preamp was only a handful of components, people would choose to buy > it assembled and tested rather than build it themselves. Somewhere > out there are 150 preamps and 50 300W transmitter kits which must > have had some effect on 136k activity. Unfortunately, it costs quite a > lot to make a kit available. You need minimum order quantities for > PCBs to make it cost effective, and a kit that contains a few inches > of say, 28 SWG wire means you have to buy a reel......and so on and > so on. Having an article published in RadCom was key to making a kit > viable. But now, there are no significant articles being published. > If, I submit an article am I going to be told, we don't do that any > more, or we like most magazines commission articles? >=20 > Basically, last year I looked at 500k as a possible opportunity for=20 > designing a DDS driven transmitter. 100W out, little 2 line LCD, PIC=20 > microcontroller running a DDS. - All fairly straightforward and if run > from 12V, a project that would attract people onto 500k. But the > single reason why that didn't happen was because at the time when I > had the idea, Rad Com hadn't published a single significant > construction article in the previous 12 months. >=20 > It takes about 300 - =A3400 to get something like this started. With no > means of promoting it, those components just sit around selling one > or two every 6 months. The people who buy them arrive at an > uninhabited 500k and mostly give up. It needs a certain momentum to > get it started. If 30 people arrive on the band in a short space of > time, others think, that sounds like fun, I'll join=20 > them and you have sustained interest. > Of course you can just put a design on the web, but then you lose > the=20 > ability to get a 'critical mass' of people on the band. > With RadCom going to a newspaper format with almost zero 'freelance'=20 > technical content, small kit suppliers and individuals are simply > unwilling to take the risk. >=20 > Hope that helps >=20 > David G0MRF >=20 >=20 >=20 >=20 >=20 >=20 > In a message dated 17/07/2008 08:22:10 GMT Standard Time, > jwgould@iee.org writes: >=20 > To me the important point that I tried to make in my posting, which > has drawn no comment, is the one I made about getting people to write > up their experimental work for publication, and specifically that > concerning 500kHz. >=20 >=20 > To maintain progress on gaining a long-term allocation around 500kHz > we will need to raise the profile nationally and internationally of > work undertaken on 500kHz. One way of doing this is to get a few > good technical articles written, not just sharing knowledge but > encouraging others and providing suitable designs to enable them to=20 > join in; good construction articles can do just that.=20 >=20 > 73 John, G3WKL >=20 >=20 >=20 >=20 >=20 >=20 >=20 >=20