[TenTec] OCF Antennas - Which commercial antenna is gest?
tvman1954 at gmail.com
Tue Sep 22 04:04:12 EDT 2015
* You have a very good memory! I use the Ugly Balun (
about 12 feet of RG-8 wrapped around a 3 inch PVC Pipe ) this is a Current
Balun. Although we don't like the loss from the Coax. We haven't been able
to justify a proper 1 to 1 Current Balun yet. About 75 feet of 450 ohm
Window Line. The untuned SWR on 75 meters is about 1.7 to 1 and less than 3
to 1 on all but 15 meters. We just wanted to complement you on your
excellent memory. *
* 73 from
On Tue, Sep 22, 2015 at 1:33 AM, Rick - DJ0IP / NJ0IP <Rick at dj0ip.de> wrote:
> As far as I could determine, the first Windom (on record) being fed with
> coax was built by Buck Rogers, K4ABT in 1959. He built it after having met
> with Lew McCoy, W1ICP (if my memory is correct).
> Buck fed his with RG-11 and used a 1:1 coax balun consisting of 9 turns of
> coax on 8" air core.
> Might have been 8 turns on 9" but I think it was the other way around.
> Considering the antenna has about 235 Ohms on 80/40/20/10 when it's under
> 50' high, then the mismatch was only 3:1.
> In the 1960's, 3:1 was more or less considered to be a perfect match!
> I still consider it to be.
> BTW, I met with Lew in 1963 but our topic was openwire-fed dipoles.
> After Lew described the antenna, I rushed out and bought a Johnson Viking
> Kilowatt matchbox and built my openwire using plastic hair curlers (which I
> "borrowed" from my mom and two sisters) as spacers.
> I caught living hell for stealing their curlers but it was worth it! ;-)
> 73 - Rick, DJ0IP
> (Nr. Frankfurt am Main)
> -----Original Message-----
> From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of Paul
> Sent: Tuesday, September 22, 2015 4:55 AM
> To: Discussion of Ten-Tec Equipment
> Cc: N4BE_Jim at yahoo.com
> Subject: Re: [TenTec] OCF Antennas - Which commercial antenna is gest?
> Back inthe 80s I had a windom antenna 120 ft with the split at 40 and 80
> No balun. I worked 80, 40, 20 and 15 with a tuner.
> Paul, KW4BD
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> TenTec at contesting.com
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