For interstation interference reduction
Tuned to the CW part of 40
I have a line from my rig to a stub, 1/4 line to the next stub, then to the
antenna
Tom W7WHY
> What are the stubs for?
> What are they tuned to?
> Why would you have a 1/4 wave phasing line on a single vertical?
> Or are you saying that the stubs are separated by 1/4 wave on the feed
> line
> to the vertical array?
>
> 73
> Gary K4FMX
>
>> -----Original Message-----
>> From: towertalk-bounces@contesting.com [mailto:towertalk-
>> bounces@contesting.com] On Behalf Of Tom Osborne
>> Sent: Wednesday, April 05, 2006 8:42 PM
>> To: Towertalk
>> Subject: Re: [TowerTalk] Phasing verticals and stubs
>>
>> Yes, I meant they are in an equilateral triangle. Had a brain fart.
>> Lots of postings on this subject, but nobody has yet answered my
>> original
>> question. I'll post it again.
>>
>> I have 2 stubs, separtated by a 1/4 wave phasing line on my single
>> vertical.
>> Will these stubs affect the phasing of the verticals. That was what I
>> was
>> originally asking. Thanks and 73
>> Tom W7WHY
>>
>>
>> ubject: Re: [TowerTalk] Phasing verticals and stubs
>>
>>
>>
>> > The 'right triangle' system utilizes two verticals per selected
>> > direction with the third 'floating'.
>> > The 'equilateral triangle' system uses all three verticals
>> > simultaneously, but requires much more coax for phasing and a more
>> > complex switching system, one that cannot be done over the coax like
>> > the
>> > 'right angle' system.
>> > Don
>> > N8DE
>> >
>> > Bill wrote:
>> >> Hi Guys
>> >> Can you explain the "right triangle." My understanding is that the
>> >> three
>> >> are in an equilateral triangle (60 degrees between each antenna).
>> >>
>> >> Bill
>> >> W7VP
>> >>
>> >>
>> >> ----- Original Message -----
>> >> From: "Tom Osborne" <w7why@verizon.net>
>> >> To: "Towertalk" <towertalk@contesting.com>
>> >> Sent: Tuesday, April 04, 2006 5:41 PM
>> >> Subject: Re: [TowerTalk] Phasing verticals and stubs
>> >>
>> >>
>> >>
>> >>>Hi Don
>> >>>
>> >>>They are in a right triangle, but mine are switchable in 6 directions.
>> I
>> >>>had them all set up before and they worked great, but the winter storm
>> >>>took
>> >>>them all down. I have 2 of them up now and going to put the 3rd one
>> >>>up
>> >>>this
>> >>>weekend. I have a box I build which switches them and all I need is
>> one
>> >>>phasing line in the shack. It is amazing to watch the signal strength
>> >>>when
>> >>>I rotate the switch through the 360 degrees. Thanks and GL on the
>> >>>project.
>> >>>Tom w7WHY
>> >>>
>> >>>
>> >>>
>> >>>>Tom,
>> >>>>
>> >>>>Why not put the three verticals in a right triangle.
>> >>>>
>> >>>>You can remotely switch the phasing using voltage over the coax so it
>> >>>>will
>> >>>>beam four compass directions.
>> >>>>Mine were [and will be soon] phased for NE, SE, SW, NW with 0, +DC, -
>> DC,
>> >>>>AC voltage for those directions.
>> >>>>Contact me for info if you're not familiar with the remote switching
>> >>>>circuit[s] which you can use.
>> >>>>
>> >>>>I manufacture [one at a time] the control [similar in nature to the
>> old
>> >>>>Heathkit control] and remote head with connections for a SINGLE 1/4-
>> wave
>> >>>>phasing section.
>> >>>>
>> >>>>Don
>> >>>>N8DE
>> >>>>
>> >>>>Tom Osborne wrote:
>> >>>>
>> >>>>>Howdy all
>> >>>>>
>> >>>>>I'm putting my 3 40 meter phased verticals back up after the storms
>> >>>>>took
>> >>>>>them down.
>> >>>>>
>> >>>>>A question I have is, if I put my stubs back in the line, is it
>> going
>> >>>>>to
>> >>>>>mess up the phasing? I'm using 1/4 wave phasing lines on the
>> verticals
>> >>>>>and 1/4 wave stubs (2 of them) in the line. Thanks and 73
>> >>>>>Tom W7WHY
>> >>>>>
>> >>>>>_______________________________________________
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>> >>>>
>> >>>>
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