X-GM-THRID: 1211536991499653337 X-Gmail-Labels: rsgb lf X-Gmail-Received: abbd4093814500c4d4d2dcde3fba46cd153a4d1a Delivered-To: daveyxm@gmail.com Received: by 10.64.249.16 with SMTP id w16cs153838qbh; Sat, 12 Aug 2006 12:41:52 -0700 (PDT) Received: by 10.48.254.10 with SMTP id b10mr5406896nfi; Sat, 12 Aug 2006 12:41:52 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.gmail.com with ESMTP id l22si6346463nfc.2006.08.12.12.41.51; Sat, 12 Aug 2006 12:41:52 -0700 (PDT) Received-SPF: neutral (gmail.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1GBzHt-0006Rh-Lp for rs_out_1@blacksheep.org; Sat, 12 Aug 2006 20:36:49 +0100 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1GBzHt-0006RY-1m for rsgb_lf_group@blacksheep.org; Sat, 12 Aug 2006 20:36:49 +0100 Received: from smtp1.versatel.nl ([62.58.50.88]) by relay2.thorcom.net with esmtp (Exim 4.51) id 1GBzHo-0003Uj-Nl for rsgb_lf_group@blacksheep.org; Sat, 12 Aug 2006 20:36:48 +0100 Received: (qmail 18779 invoked by uid 0); 12 Aug 2006 19:36:39 -0000 Received: from unknown (HELO fujitsu) ([62.59.190.51]) (envelope-sender ) by smtp1.versatel.nl (qmail-ldap-1.03) with SMTP for < >; 12 Aug 2006 19:36:39 -0000 Message-ID: <003901c6be46$2f6871c0$33be3b3e@fujitsu> From: "Dick" To: Date: Sat, 12 Aug 2006 21:33:27 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1478 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1478 X-Spam-Score: -0.1 (/) X-Spam-Report: autolearn=disabled,AWL=-0.602,FROM_ENDS_IN_NUMS=0.516,HTML_60_70=0.027,HTML_MESSAGE=0.001 Subject: LF: Fw: PA4VHF small backyard tests Content-Type: multipart/alternative; boundary="----=_NextPart_000_0036_01C6BE56.F27D4A40" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.4 required=5.0 tests=FROM_ENDS_IN_NUMS,HTML_40_50, HTML_MESSAGE,MAILTO_TO_SPAM_ADDR 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 Status: O X-Status: X-Keywords: X-UID: 4727 This is a multi-part message in MIME format. ------=_NextPart_000_0036_01C6BE56.F27D4A40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ----- Original Message -----=20 From: Dick=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Saturday, August 12, 2006 4:37 PM Subject: Fw: PA4VHF small backyard tests ----- Original Message -----=20 From: Dick=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Saturday, August 12, 2006 4:33 PM Subject: PA4VHF small backyard tests Well, changed the antenna and fired up my little teststation this = afternoon in my backyard. Antenna: 3 wires 7.5m long spaced 40cm each , vertical part about 6m = long also 3 parallel wires spaced 40cm each. Feed is about 2m from the far end. Measured about 170pF and 60 Ohm (?) with bridge, noisesource/136kHz = oscillator and RX. With variometer and loading coil connected, I needed about 6,7mH to tune = things, where I expected to find=20 around 8,0mH. Somewhere I got around 30-40pF extra. Maybe internal capacity of the = loading coils??? With 100Watt DC-input I got about 200mA antenna current sofar. Remarkable: when switching TX on/off, I could hear the first step-up = transformer clicking (it's a 58mm 3C85 core) is this usual??? The transmitter used is my little testbox with an additional amplifier = with IRFP360 running at around 12-14V, 6-9Amp. Mal has heard me before with this transmitter connected to a 15m spiral = toploaded vertical.......... 73 Dick, PA4VHF (JO32eg) ------=_NextPart_000_0036_01C6BE56.F27D4A40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
----- Original Message -----=20
From: Dick =
Sent: Saturday, August 12, 2006 4:37 PM
Subject: Fw: PA4VHF small backyard tests

 
----- Original Message -----=20
From: Dick =
Sent: Saturday, August 12, 2006 4:33 PM
Subject: PA4VHF small backyard tests

Well, changed the antenna and fired up = my little=20 teststation this afternoon in my backyard.
 
Antenna: 3 wires 7.5m long spaced 40cm = each ,=20 vertical part about 6m long also 3 parallel wires spaced 40cm = each.
Feed is about 2m from the far = end.
 
Measured about 170pF and 60 Ohm (?) = with bridge,=20 noisesource/136kHz oscillator and RX.
 
With variometer and loading coil = connected, I=20 needed about 6,7mH to tune things, where I expected to find =
around 8,0mH.
 
Somewhere I got around 30-40pF extra. = Maybe=20 internal capacity of the loading coils???
 
With 100Watt DC-input I got about 200mA = antenna=20 current sofar.
 
Remarkable: when switching TX on/off, I = could hear=20 the first step-up transformer clicking (it's a 58mm 3C85 = core)
is this usual???
 
The transmitter used is my little = testbox with an=20 additional amplifier with IRFP360 running at around 12-14V, = 6-9Amp.
Mal has heard me before with this = transmitter=20 connected to a 15m spiral toploaded vertical..........
 
73
 
Dick, PA4VHF = (JO32eg)
------=_NextPart_000_0036_01C6BE56.F27D4A40--