DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws;
  s=s1024; d=yahoo.com;
  h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type;
  b=OKvuiN8UvwzM3EUFGjVyA3C3Rsd/Fz3uzNxrqE0pRvgZXY1zfM+1pCKaU9uCBdboqjxMVEH99FicQNMKBvnMHGjOmX1bZqHwmR7Zna+UJGtdOGESrYuqRRGPWsRq32i8jstqttviAIIam6OV3rWQBcracz8giz7dN+qURjmlZv8=;
References: <4E6E0AD4.4838.465714@mike.dennison.ntlworld.com> <1315833746.18312.YahooMailNeo@web29503.mail.ird.yahoo.com>
Message-ID: <1315926429.28889.YahooMailNeo@web29518.mail.ird.yahoo.com>
Date: Tue, 13 Sep 2011 16:07:09 +0100 (BST)
From: Daniele Tincani <danieletincani@yahoo.com>
To: "rsgb_lf_group@blacksheep.org" <rsgb_lf_group@blacksheep.org>
In-Reply-To: <1315833746.18312.YahooMailNeo@web29503.mail.ird.yahoo.com>
MIME-Version: 1.0
DomainKey-Status: good (testing) 
Subject: LF: Simple yet reliable method for measuring Q?
Content-Type: multipart/alternative; boundary="893906369-1922646283-1315926429=:28889"
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org
X-AOL-SCOLL-URL_COUNT: 0  
X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m022.1 ; domain : yahoo.com DKIM : fail  
x-aol-sid: 3039ac1d60574e6f71f13302
X-AOL-IP: 195.171.43.25
X-AOL-SPF: domain : blacksheep.org SPF : none


--893906369-1922646283-1315926429=:28889
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable

Hello LF,=0A=0Aapologies for being a bit OT.=0AI'm looking for a (reasonabl=
y) reliable method for measuring Q of a parallel LC resonator at LF frequen=
cies (ferrite-cored coil + variable air cap).=0AI have a spectrum analyser =
(without tracking capability), oscilloscope with 10x probes, RF generator w=
ith built-in attenuator and sweep function, frequency counter. I'm doubtful=
 in particular about how to avoid loading the LC with either the output Z o=
f the generator or the input Z of the meter (or both). Any tips?=0A=0ABest =
regards=0ADaniele
--893906369-1922646283-1315926429=:28889
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: quoted-printable

<html><body><div style=3D"color:#000; background-color:#fff; font-family:ar=
ial, helvetica, sans-serif;font-size:10pt"><DIV style=3D"FONT-SIZE: 10pt; F=
ONT-FAMILY: arial, helvetica, sans-serif">
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, time=
s, serif">Hello LF,</DIV>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, time=
s, serif">&nbsp;</DIV>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, time=
s, serif">apologies for being a bit OT.</DIV>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, time=
s, serif">I'm looking for a (reasonably) reliable method for measuring Q of=
 a parallel LC resonator at LF frequencies (ferrite-cored coil + variable a=
ir cap).</DIV>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, time=
s, serif">I have a spectrum analyser (without tracking capability), oscillo=
scope with 10x probes, RF generator with built-in attenuator and sweep func=
tion, frequency counter. I'm doubtful in particular about how to avoid load=
ing the LC with either the output Z of the generator or the input Z of the =
meter (or both). Any tips?</DIV>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, time=
s, serif">&nbsp;</DIV>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, time=
s, serif">Best regards</DIV>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, time=
s, serif">Daniele</DIV>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, time=
s, serif"><VAR id=3Dyui-ie-cursor></VAR>&nbsp;</DIV></DIV></div></body></ht=
ml>
--893906369-1922646283-1315926429=:28889--