Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-df02.r1000.mx.aol.com (Internet Inbound) with ESMTP id B18CF38000094; Tue, 23 Oct 2012 12:10:36 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1TQh2i-0006RO-IP for rs_out_1@blacksheep.org; Tue, 23 Oct 2012 17:09:24 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1TQh2i-0006RF-1A for rsgb_lf_group@blacksheep.org; Tue, 23 Oct 2012 17:09:24 +0100 Received: from smtpout4.wanadoo.co.uk ([80.12.242.68] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1TQh2f-0001Vi-Th for rsgb_lf_group@blacksheep.org; Tue, 23 Oct 2012 17:09:22 +0100 Received: from AGB ([2.26.14.158]) by mwinf5d57 with ME id Eg9L1k0083QcW4q03g9L2c; Tue, 23 Oct 2012 18:09:20 +0200 Message-ID: From: "Graham" To: References: In-Reply-To: Date: Tue, 23 Oct 2012 17:09:20 +0100 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-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: Copper pipe and silver solder where ever possible ? G.. From: Laurence KL1 X Sent: Tuesday, October 23, 2012 3:14 PM To: lowfer@mailman.qth.net ; rsgb_lf_group@blacksheep.org Subject: LF: XPQ Wasilla reports - [...] 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 [80.12.242.68 listed in list.dnswl.org] 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 2bd5d3c3e4b1ac0d4c95b192e62a82a2 Subject: Re: LF: XPQ Wasilla reports - Content-Type: multipart/alternative; boundary="----=_NextPart_000_0069_01CDB141.241A33E0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.1 required=5.0 tests=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-global-disposition: G x-aol-sid: 3039ac1d40d65086c17b038a 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_0069_01CDB141.241A33E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Copper pipe and silver solder where ever possible ? G.. From: Laurence KL1 X=20 Sent: Tuesday, October 23, 2012 3:14 PM To: lowfer@mailman.qth.net ; rsgb_lf_group@blacksheep.org=20 Subject: LF: XPQ Wasilla reports - Dear all - thanks for all the comments and reports chaps - and lack of = them is as much of interest too/ I didnt expect much given conditions = are a little early on all paths, and the Alaskan ionosphere is still a = little hot, but looks like I had success down to BC (Jack) and across = the Pacific perhaps. XPQ went off at 1333z after an overnight run at >1Kw constant carrier -=20 The good news is I think Ive discovered the problem with one bolt joint = on a feedthru and will investigate further it doesn't look like the = Brass is the only culprit. Using an IR/laser sighted gun I measured = the temps of the components as best I can and can localize temps to a = few mm Its around -15C out there at present in air with low humidity - Loop = current 60A which is good. The "hottest" component, apart from the = joint, is the 2T:13T transformer at just 9C ! All the current sharing = caps are cold and around 1C - power and ERP held within 0.5dB and phase = was maintained as far as I can see. I dont have a (safe) or effective alternative for a Tx antennae here - = Verticals just dont work as well in a Alaskan Birch/Spruce forest and = the loop is easier, has less potential wx/tuning issues and more stable = by far here in this bespoke location. This loop configuration is the = same as XDW but my geographic and topological environment is very very = different to Oklahoma! Still Im very happy that we can continue the = tests as we move into the winter - time will tell. Im building a doubler and interface board for the TS850 at present to = provide a locked reference, The TS870 had already been modified for WOLF = tests with John XES way back when - Ive been using the FT817 as the = transverter source and even with the TXCO is just good, or bad, enough = after a long warm up of dot 60 using it at 5.136MHz, but its sort of a = guess and tweek on where the freq will actually go stable. For last = nights test the Freq source was a GPS referenced HP3336B driving the = Decca 5501 directly. Heatsink temps on the 3 Decca modules were around = 30C, LPF inductors 37C, though I had the phase meter on top of the LPF = vents so this temp should have been a little lower. expect more playing with modes soon - Ill probably take a run at Opera = 32 tonight (using the FT817 as the drive) but will be likely off air on = the 24th for the SAQ test. Laurence KL 1 X WE2 XPQ Wasilla AK ------=_NextPart_000_0069_01CDB141.241A33E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Copper pipe  and  silver = solder =20 where  ever possible  ?
 
G..

From: Laurence KL1 X
Sent: Tuesday, October 23, 2012 3:14 PM
To: lowfer@mailman.qth.net ; rsgb_lf_group@blacksheep.org= =20
Subject: LF: XPQ Wasilla reports -

Dear all - thanks for all the comments and reports chaps = - and lack=20 of them is as much of interest too/ I didnt expect much given conditions = are a=20 little early on all paths, and the Alaskan ionosphere is still a little=20 hot,  but looks like I had success down to BC (Jack) and across the = Pacific=20 perhaps.

XPQ went off at 1333z after an overnight run at >1Kw = constant=20 carrier -

The good news is I think Ive discovered the problem = with one=20 bolt joint on a feedthru and will investigate further it doesn't look = like the=20 Brass is the only  culprit. Using an IR/laser sighted  gun I = measured=20 the temps of the components as best I can and can localize temps to a = few=20 mm

Its around -15C out there at present in air with low humidity = - Loop=20 current 60A which is good. The "hottest" component, apart from the = joint, is the=20 2T:13T transformer at just 9C ! All the current sharing caps are cold = and around=20 1C - power and ERP held within 0.5dB and phase was maintained as far as = I can=20 see.

I dont have a (safe) or effective  alternative for a Tx = antennae here - Verticals just dont work as well in a Alaskan = Birch/Spruce=20 forest and the loop is easier, has less potential wx/tuning issues and = more=20 stable by far here in this bespoke location. This loop configuration is = the same=20 as XDW but my geographic and topological environment is very very = different to=20 Oklahoma!  Still Im very happy that we can continue the tests as we = move=20 into the winter - time will tell.

Im building a doubler and = interface=20 board for the TS850 at present to provide a locked reference, The TS870 = had=20 already been modified for WOLF tests with John XES way back when   = - Ive=20 been using the FT817 as the transverter source and even with the TXCO is = just=20 good, or bad, enough after a long warm up of dot 60 using it at = 5.136MHz, but=20 its sort of a guess and tweek on where the freq will actually go stable. = For=20 last nights test the Freq source was a GPS referenced HP3336B driving = the Decca=20 5501 directly. Heatsink temps on the 3 Decca modules were around 30C, = LPF=20 inductors 37C, though I had the phase meter on top of the LPF vents so = this temp=20 should have been a little lower.

 expect more playing with = modes=20 soon - Ill probably take a run at Opera 32 tonight (using the FT817 as = the=20 drive) but will be likely off air on the 24th for the SAQ = test.

Laurence=20 KL 1 X  WE2 XPQ Wasilla AK
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