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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: Warren; I never gave a thought to self resonating a coil arrangement. It could resonate but put out no power to the ant if self resonant? Date: Wed, 11 Jun 2014 14:48:26 -0400 From: Re: LF: Testing WSPR2 to night a short antenna for future mobile use on MF band. [...] Content analysis details: (-0.6 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [65.55.116.18 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (rjraide[at]hotmail.com) -0.0 SPF_PASS SPF: sender matches SPF record -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_REMOTE_IMAGE Message contains an external image X-Scan-Signature: 4a8faa6952847c1ec651f883b63fc053 Content-Type: multipart/alternative; boundary="_aee8ecee-f5ef-439f-a14d-ec51844e69c8_" Subject: RE: LF: Testing WSPR2 to night a short antenna for future mobile use on MF band. X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.9 required=5.0 tests=CELL_PHONE_BOOST, FORGED_HOTMAIL_RCVD,HTML_50_60,HTML_MESSAGE,HTML_TAG_EXISTS_TBODY, TO_ADDRESS_EQ_REAL 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 --_aee8ecee-f5ef-439f-a14d-ec51844e69c8_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Warren=3B I never gave a thought to self resonating a coil arrangement. It could res= onate but put out no power to the ant if self resonant? =20 Date: Wed=2C 11 Jun 2014 14:48:26 -0400 From: wd2xgj@gmail.com To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Testing WSPR2 to night a short antenna for future mobile u= se on MF band. Andy=2C You need such a large inductance for this=2C be careful how you w= ind the coil since self=96resonance might be near the operating frequency!7= 3 Warren K2ORS On Tuesday=2C June 10=2C 2014=2C Andr=E9 Guy=E9 = wrote: =0A= =0A= =0A= =0A= =0A= Hi to all.=0A= =0A= I am thinking now about the design of a short vertical =0A= antenna=2C for MF mobile use in next winter season.=0A= =0A= To night I=92ll test this first configuration : a 2 meters =0A= high tube (2 cm of diameter) and a top hat (wheel shape) 80 cm of diameter.= It =0A= needs about 2.4 mH base coil tuning. The TX is 3 Watts output. =0A= Base voltage is 2=2C2 kV RMS.=0A= =0A= I=92ll test this small antenna to =0A= night=2C beginning at =0A= 2000 TU on WSPR2 MF band. The expected ERP is about 1 mW.=0A= =0A= All reports be welcome. Note that to night the testing =0A= antenna has his base on the garden with a ground earth rod=2C so it is not = =0A= installing on my car.=0A= =0A= 73 de Andy. F6CNI - =0A= JN19QB=0A= =0A= =0A= =0A= =0A= =0A= =0A= =0A= =0A= =0A= =0A= =0A= Ce courrier =E9lectronique ne contient aucun virus ou logiciel malveill= ant parce que la protection Antivirus avast! est active.=0A= =0A= =0A= =0A= =0A= =0A= =0A= --=20 73 Warren K2ORS WD2XGJ=20 WD2XSH/23 WE2XEB/2 WE2XGR/1 =20 = --_aee8ecee-f5ef-439f-a14d-ec51844e69c8_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Warren=3B
I never gave a thou= ght to self resonating a coil arrangement. =3B It could resonate but pu= t out no power to the ant =3Bif self resonant?
 =3B
Date: Wed=2C 11 Jun 2014 14:48:26 -0400
From: wd2xgj= @gmail.com
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: Testing = WSPR2 to night a short antenna for future mobile use on MF band.

And= y=2C
 =3B  =3BYou need such a large inductance for this=2C be c= areful how you wind the coil since self=96resonance might be near the opera= ting frequency!
73 Warren K2ORS


On Tuesday=2C J= une 10=2C 2014=2C Andr=E9 Guy=E9 <=3Bandre.guye1@aliceadsl.fr>=3B wrote:
=0A=
=0A=
=0A=
=0A=
=0A=

Hi to= all.

=0A=

 =3B

=0A=

I am thinking now about the design of a short vertical =0A= antenna=2C for MF mobile use in next winter season.

=0A=

 =3B

=0A=

To night I=92ll test this first configuration : a 2 meters = =0A= high tube (2 cm of diameter) and a top hat (wheel shape) 80 cm of diameter.= It =0A= needs about 2.4 mH base coil tuning. The TX is 3 Watts output. =0A= Base voltage is 2=2C2 kV RMS.

=0A=

 =3B

=0A=

I=92ll test this small antenna to =0A= night=2C beginning at =0A= 2000 TU on WSPR2 MF band. The expected ERP is about 1 mW.

= =0A=

 =3B

=0A=

All reports be welcome. Note that to night the testing =0A= antenna has his base on the garden with a ground earth rod=2C so it is not = =0A= installing on my car.

=0A=

 =3B

=0A=

73 de Andy. F6CNI - =0A= JN19QB

=0A=

=0A=
= =0A= =0A= =0A= =0A= =0A= =0A=
=0A= =0A= =0A= =0A= =0A=

=0A= Ce courrier =E9lectronique ne contient aucun virus ou logiciel malveill= ant parce que la protection Antivirus avast! est active.=0A=

=0A=
=0A=
=0A=
=0A=


--
73 Warren K2ORS
 =3B  =3B &nbs= p=3B  =3B  =3B  =3B  =3B  =3B WD2XGJ
 =3B  = =3B  =3B  =3B  =3B  =3B  =3B  =3B WD2XSH/23
&nbs= p=3B  =3B  =3B  =3B  =3B  =3B  =3B  =3B WE2XEB/= 2
 =3B  =3B  =3B  =3B  =3B  =3B  =3B  = =3B WE2XGR/1

 =3B
= --_aee8ecee-f5ef-439f-a14d-ec51844e69c8_--