[VHFcontesting] 50mhz Antenna Design Question
Donald Huntington
k1dh1 at hotmail.com
Mon Mar 11 23:08:30 EST 2002
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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><< k1dh.jpg >>
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