[VHFcontesting] 50mhz Antenna Design Question
Donald Huntington
k1dh1 at hotmail.com
Mon Mar 11 23:18:39 EST 2002
MGEF is the MT. GREYLOCK EXPEDITIONARY FORCE, W2SZ/1. The nations number one contest operation. See our web site www.mgef.org
>From: "Bob Naumann - N5NJ"
>To: "Donald Huntington"
>Subject: Re: [VHFcontesting] 50mhz Antenna Design Question
>Date: Mon, 11 Mar 2002 17:12:34 -0600
>
>Who is MGEF ?
>
>That was from Field Day 1980 in Boonton, NJ.
>
>----- Original Message -----
>From: "Donald Huntington"
>To:
>Cc:
;
;
>Sent: Monday, March 11, 2002 5:08 PM
>Subject: Re: [VHFcontesting] 50mhz Antenna Design Question
>
>
> > Boy the guy in the picture looks familiar. He had a full head of hair!
>Also the station was in the white van and was the TR6, This probably dates
>to the late 70's or early 80's. Do you know.? MGEF could use this on
>their web site if you can date it. Thanks for the memory, 73, Don K1DH
> >
> >
> >
> > >From: "Bob Naumann - N5NJ"
> > >To: "Donald Huntington"
> > >Subject: Re: [VHFcontesting] 50mhz Antenna Design Question
> > >Date: Mon, 11 Mar 2002 16:44:02 -0600
> > >
> > >Remember this?
> > >
> > >----- Original Message -----
> > >From: "Donald Huntington"
> > >To:
> > >Cc:
> > >Sent: Sunday, March 10, 2002 9:03 PM
> > >Subject: Re: [VHFcontesting] 50mhz Antenna Design Question
> > >
> > >
> > > > Hi Jim, Why don't you contact Steve, K1FO directly?You can get his
>address
> > >from arrl.org and hopefully his phone number from switchboard.com. I know
>he
> > >has done extensive testing with his antennas and could steer you in the
> > >right direction. Good luck, 73 Don K1DH
> > > >
> > > >
> > > >
> > > > >From: James Hayes
> > > > >Reply-To: hazy119 at westelcom.com
> > > > >To: vhf at w6yx.stanford.edu, vhfcontesting at contesting.com,
> > >50mhz at topica.com, 2m at mailman.qth.net
> > > > >Subject: [VHFcontesting] 50mhz Antenna Design Question
> > > > >Date: Sun, 10 Mar 2002 17:48:47 -0500
> > > > >
> > > > >50mhz reflector
> > > > >
> > > > >Hello all on the list and please forgive the bandwidth...
> > > > >
> > > > >I'm trying to configure a couple of antenna arrays for 2M and 432.
> > >Running
> > > > >pairs of K1FO-12 for 2M and a pair of K1FO-15 for 432 in the E-plane
>on a
> > >48
> > > > >ft tower, and while using Yagi Max I noticed that the wider the W/L
> > >spacing
> > > > >between the antennas the narrower the beam width of the main lobe.
>Most
> > >of
> > > > >the reading I've been seeing on the subject varies widely regarding
>the
> > > > >'optimum' spacing.
> > > > >The original design parameters by Paul, K1FO states one thing and YM
>3.11
> > > > >states another for optimum spacing for antennas of his design. Also,
> > >others
> > > > >have written that .9 W/L is optimal for all arrays...(confusion sets
>in.)
> > >I
> > > > >have noticed a tighter pattern on the main lobe provides a cleaner
>F/B
> > >ratio
> > > > >as well but it lends itself to having the antennas spaced at 1.5 W/L
>or
> > > > >larger!!!
> > > > >My question is rather simple...is it more desirable for one to have a
> > > > >narrower or wider bandwidth pattern on the main lobe, or is it rather
>a
> > > > >matter of aesthetics over gain? As the gain itself does not increase
> > > > >appreciably to offset the necessity of a narrower band width pattern.
> > > > >
> > > > >Jim, N2YEV
> > > > >n2yev at arrl.net
> > > > >
> > > > >-----
> > > > >Visit the Six Club web page at: http://6mt.com/club.htm
> > > > >-----
> > > > >3 Ring Halo Antenna http://6mt.com/halo.htm
> > > > >-----
> > > > >Submissions: 50mhz at topica.com
> > > > >-
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> > > > >
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