Re: Topband: TopBand DownUnder

[MICHAEL ST ANGELO]

I remember the Slinky's being copper plated. I wonder if the skin depth lowered 
losses on 160 meters.

Mike N2MS

> On 09/14/2021 9:33 PM W0MU Mike Fatchett  wrote:
> 
>  
> I have a drawer full of slinky's the steel version.  I recall that 
> someone was making slinky beverages for people that could not stretch 
> out 300 plus beverages.  I never got around to making one.  Maybe the 
> slinky's are collector items now and I can get my money back!  HI!
> 
> W0MU
> 
> On 9/14/2021 5:08 PM, Grant Saviers wrote:
> > A bad idea when the Slinky is steel.  Helical wound copper wire 
> > antennas do work, for TB we used a wound vertical on a FG pole at H40TT.
> >
> > It was amazing to me that EZNEC will auto generate a helix wire of 
> > arbitrary dimensions, pitch, and segmentation.
> >
> > Grant KZ1W
> >
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Re: Topband: TopBand DownUnder

[W0MU Mike Fatchett]

I have a drawer full of slinky's the steel version.  I recall that 
someone was making slinky beverages for people that could not stretch 
out 300 plus beverages.  I never got around to making one.  Maybe the 
slinky's are collector items now and I can get my money back!  HI!


W0MU

On 9/14/2021 5:08 PM, Grant Saviers wrote:
A bad idea when the Slinky is steel.  Helical wound copper wire 
antennas do work, for TB we used a wound vertical on a FG pole at H40TT.


It was amazing to me that EZNEC will auto generate a helix wire of 
arbitrary dimensions, pitch, and segmentation.


Grant KZ1W

On 9/14/2021 15:45, Mark - N5OT wrote:
Okay then, who was making dipoles out of slinkys?  Barbed wire is not 
germane to a discussion of either accordion inductors or Tornado Tuners.


Back on topic, I re-read K9YC's presentation about 160 meter 
transmitting antennas, and it was good to be reminded of so many 
things.  A fun fact is, I had no idea I live on the most conductive 
ground on the map of the USA.  That explains many things.  Lucky me!


73 - Mark N5OT

On 9/14/2021 5:39 PM, Tree wrote:

Maybe I will beat W6DGH to this...

WB6ZKK was pushing barb wire dipoles.

On Tue, Sep 14, 2021 at 3:37 PM Mark - N5OT > wrote:


    When I was a kid, we had a guy WB6ZKK who touted dipoles made of
    slinkys.  I am thinking some of the same electronic theory and 
design

    must have come into play.

    Tree will remember.  Long live the old NTS.

    73 - Mark N5OT


    On 9/14/2021 5:21 PM, Grant Saviers wrote:
    > I've not heard the term "accordian" applied, but the Tornado 
Tuner

    > expands and compresses a coil inside some pvc pipe to change L
    about
    > 2:1.  I have one (split) to tune the full 80m band at the center
    of an
    > 86ft rotatable dipole.  Your choice of Al or Cu coil tubing 
with a
    > small Portescap gearhead motor driving a delrin (I think) 
leadscrew

    > screw and reed switch for turns counting.
    >
    > JKantennas makes an yagi with a Tornado.  Rumor has it a 3L 
80m was

    > built with them for full band coverage.
    >
    > Originally, mostly used for tuning/loading verticals.  No sliding
    > contacts makes it quiet and reliable.  I used an MFJ screwdriver
    > control with 10 pushbutton 50KHz spaced presets for 80m but now
    have a
    > RT21dc automatically tracking frequency to preset coil positions.
    > GHeverywhere does the mapping.
    >
    > Grant KZ1W
    >
    > On 9/14/2021 12:54, Mark - N5OT wrote:
    >> Wait.  There's such a thing as an "accodion inductor"?  I
    thought I
    >> knew everything.
    >>
    >> I'll be glad when mowing season is over, too.
    >>
    >> 73 - Mark N5OT
    >>
    >>
    >> On 9/14/2021 2:44 PM, w3...@roadrunner.com
     wrote:
    >>> Been reading the encouraging posts. So, I got up and heard good
    >>> activity, working:
    >>> VK3HJ - ZL1AZ - VK2WR at Ohio SR and up to 20 minutes after,
    when the
    >>> band faded out.
    >>>
    >>> Gud to hear Luke, Dennis and Adrian coming through so well,
    through
    >>> moderate QRN. Unusually warm temps here for mid Sep. ( 85-88F)
    I took
    >>> an hour last week to tweak the 52' tall 1/4 wave INV-L. All 26
    radials
    >>> are still coiled up and hanging from the walnut tree, until 
lawn
    >>> mowing season ends in mid Oct. Then I will uncurl them and 
retune

    >>> accordion inductor.
    >>>
    >>> Heard AA1K this morning as well.
    >>>
    >>>
    >>> _
    >>> Searchable Archives: http://www.contesting.com/_topband
     - Topband
    >>> Reflector
    >>
    >> _
    >> Searchable Archives: http://www.contesting.com/_topband
     - Topband
    >> Reflector
    > _
    > Searchable Archives: http://www.contesting.com/_topband
     - Topband
    > Reflector

    _
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Re: Topband: TopBand DownUnder

[Grant Saviers]

A bad idea when the Slinky is steel.  Helical wound copper wire antennas 
do work, for TB we used a wound vertical on a FG pole at H40TT.


It was amazing to me that EZNEC will auto generate a helix wire of 
arbitrary dimensions, pitch, and segmentation.


Grant KZ1W

On 9/14/2021 15:45, Mark - N5OT wrote:
Okay then, who was making dipoles out of slinkys?  Barbed wire is not 
germane to a discussion of either accordion inductors or Tornado Tuners.


Back on topic, I re-read K9YC's presentation about 160 meter 
transmitting antennas, and it was good to be reminded of so many 
things.  A fun fact is, I had no idea I live on the most conductive 
ground on the map of the USA.  That explains many things.  Lucky me!


73 - Mark N5OT

On 9/14/2021 5:39 PM, Tree wrote:

Maybe I will beat W6DGH to this...

WB6ZKK was pushing barb wire dipoles.

On Tue, Sep 14, 2021 at 3:37 PM Mark - N5OT > wrote:


    When I was a kid, we had a guy WB6ZKK who touted dipoles made of
    slinkys.  I am thinking some of the same electronic theory and design
    must have come into play.

    Tree will remember.  Long live the old NTS.

    73 - Mark N5OT


    On 9/14/2021 5:21 PM, Grant Saviers wrote:
    > I've not heard the term "accordian" applied, but the Tornado Tuner
    > expands and compresses a coil inside some pvc pipe to change L
    about
    > 2:1.  I have one (split) to tune the full 80m band at the center
    of an
    > 86ft rotatable dipole.  Your choice of Al or Cu coil tubing with a
    > small Portescap gearhead motor driving a delrin (I think) leadscrew
    > screw and reed switch for turns counting.
    >
    > JKantennas makes an yagi with a Tornado.  Rumor has it a 3L 80m was
    > built with them for full band coverage.
    >
    > Originally, mostly used for tuning/loading verticals.  No sliding
    > contacts makes it quiet and reliable.  I used an MFJ screwdriver
    > control with 10 pushbutton 50KHz spaced presets for 80m but now
    have a
    > RT21dc automatically tracking frequency to preset coil positions.
    > GHeverywhere does the mapping.
    >
    > Grant KZ1W
    >
    > On 9/14/2021 12:54, Mark - N5OT wrote:
    >> Wait.  There's such a thing as an "accodion inductor"?  I
    thought I
    >> knew everything.
    >>
    >> I'll be glad when mowing season is over, too.
    >>
    >> 73 - Mark N5OT
    >>
    >>
    >> On 9/14/2021 2:44 PM, w3...@roadrunner.com
     wrote:
    >>> Been reading the encouraging posts. So, I got up and heard good
    >>> activity, working:
    >>> VK3HJ - ZL1AZ - VK2WR at Ohio SR and up to 20 minutes after,
    when the
    >>> band faded out.
    >>>
    >>> Gud to hear Luke, Dennis and Adrian coming through so well,
    through
    >>> moderate QRN. Unusually warm temps here for mid Sep. ( 85-88F)
    I took
    >>> an hour last week to tweak the 52' tall 1/4 wave INV-L. All 26
    radials
    >>> are still coiled up and hanging from the walnut tree, until lawn
    >>> mowing season ends in mid Oct. Then I will uncurl them and retune
    >>> accordion inductor.
    >>>
    >>> Heard AA1K this morning as well.
    >>>
    >>>
    >>> _
    >>> Searchable Archives: http://www.contesting.com/_topband
     - Topband
    >>> Reflector
    >>
    >> _
    >> Searchable Archives: http://www.contesting.com/_topband
     - Topband
    >> Reflector
    > _
    > Searchable Archives: http://www.contesting.com/_topband
     - Topband
    > Reflector

    _
    Searchable Archives: http://www.contesting.com/_topband
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Re: Topband: TopBand DownUnder

[Mark - N5OT]

Okay then, who was making dipoles out of slinkys?  Barbed wire is not 
germane to a discussion of either accordion inductors or Tornado Tuners.


Back on topic, I re-read K9YC's presentation about 160 meter 
transmitting antennas, and it was good to be reminded of so many 
things.  A fun fact is, I had no idea I live on the most conductive 
ground on the map of the USA.  That explains many things.  Lucky me!


73 - Mark N5OT

On 9/14/2021 5:39 PM, Tree wrote:

Maybe I will beat W6DGH to this...

WB6ZKK was pushing barb wire dipoles.

On Tue, Sep 14, 2021 at 3:37 PM Mark - N5OT > wrote:


When I was a kid, we had a guy WB6ZKK who touted dipoles made of
slinkys.  I am thinking some of the same electronic theory and design
must have come into play.

Tree will remember.  Long live the old NTS.

73 - Mark N5OT


On 9/14/2021 5:21 PM, Grant Saviers wrote:
> I've not heard the term "accordian" applied, but the Tornado Tuner
> expands and compresses a coil inside some pvc pipe to change L
about
> 2:1.  I have one (split) to tune the full 80m band at the center
of an
> 86ft rotatable dipole.  Your choice of Al or Cu coil tubing with a
> small Portescap gearhead motor driving a delrin (I think) leadscrew
> screw and reed switch for turns counting.
>
> JKantennas makes an yagi with a Tornado.  Rumor has it a 3L 80m was
> built with them for full band coverage.
>
> Originally, mostly used for tuning/loading verticals.  No sliding
> contacts makes it quiet and reliable.  I used an MFJ screwdriver
> control with 10 pushbutton 50KHz spaced presets for 80m but now
have a
> RT21dc automatically tracking frequency to preset coil positions.
> GHeverywhere does the mapping.
>
> Grant KZ1W
>
> On 9/14/2021 12:54, Mark - N5OT wrote:
>> Wait.  There's such a thing as an "accodion inductor"?  I
thought I
>> knew everything.
>>
>> I'll be glad when mowing season is over, too.
>>
>> 73 - Mark N5OT
>>
>>
>> On 9/14/2021 2:44 PM, w3...@roadrunner.com
 wrote:
>>> Been reading the encouraging posts. So, I got up and heard good
>>> activity, working:
>>> VK3HJ - ZL1AZ - VK2WR at Ohio SR and up to 20 minutes after,
when the
>>> band faded out.
>>>
>>> Gud to hear Luke, Dennis and Adrian coming through so well,
through
>>> moderate QRN. Unusually warm temps here for mid Sep. ( 85-88F)
I took
>>> an hour last week to tweak the 52' tall 1/4 wave INV-L. All 26
radials
>>> are still coiled up and hanging from the walnut tree, until lawn
>>> mowing season ends in mid Oct. Then I will uncurl them and retune
>>> accordion inductor.
>>>
>>> Heard AA1K this morning as well.
>>>
>>>
>>> _
>>> Searchable Archives: http://www.contesting.com/_topband
 - Topband
>>> Reflector
>>
>> _
>> Searchable Archives: http://www.contesting.com/_topband
 - Topband
>> Reflector
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Re: Topband: TopBand DownUnder

[Tree]

Maybe I will beat W6DGH to this...

WB6ZKK was pushing barb wire dipoles.

On Tue, Sep 14, 2021 at 3:37 PM Mark - N5OT  wrote:

> When I was a kid, we had a guy WB6ZKK who touted dipoles made of
> slinkys.  I am thinking some of the same electronic theory and design
> must have come into play.
>
> Tree will remember.  Long live the old NTS.
>
> 73 - Mark N5OT
>
>
> On 9/14/2021 5:21 PM, Grant Saviers wrote:
> > I've not heard the term "accordian" applied, but the Tornado Tuner
> > expands and compresses a coil inside some pvc pipe to change L about
> > 2:1.  I have one (split) to tune the full 80m band at the center of an
> > 86ft rotatable dipole.  Your choice of Al or Cu coil tubing with a
> > small Portescap gearhead motor driving a delrin (I think) leadscrew
> > screw and reed switch for turns counting.
> >
> > JKantennas makes an yagi with a Tornado.  Rumor has it a 3L 80m was
> > built with them for full band coverage.
> >
> > Originally, mostly used for tuning/loading verticals.  No sliding
> > contacts makes it quiet and reliable.  I used an MFJ screwdriver
> > control with 10 pushbutton 50KHz spaced presets for 80m but now have a
> > RT21dc automatically tracking frequency to preset coil positions.
> > GHeverywhere does the mapping.
> >
> > Grant KZ1W
> >
> > On 9/14/2021 12:54, Mark - N5OT wrote:
> >> Wait.  There's such a thing as an "accodion inductor"?  I thought I
> >> knew everything.
> >>
> >> I'll be glad when mowing season is over, too.
> >>
> >> 73 - Mark N5OT
> >>
> >>
> >> On 9/14/2021 2:44 PM, w3...@roadrunner.com wrote:
> >>> Been reading the encouraging posts. So, I got up and heard good
> >>> activity, working:
> >>> VK3HJ - ZL1AZ - VK2WR at Ohio SR and up to 20 minutes after, when the
> >>> band faded out.
> >>>
> >>> Gud to hear Luke, Dennis and Adrian coming through so well, through
> >>> moderate QRN. Unusually warm temps here for mid Sep. ( 85-88F) I took
> >>> an hour last week to tweak the 52' tall 1/4 wave INV-L. All 26 radials
> >>> are still coiled up and hanging from the walnut tree, until lawn
> >>> mowing season ends in mid Oct. Then I will uncurl them and retune
> >>> accordion inductor.
> >>>
> >>> Heard AA1K this morning as well.
> >>>
> >>>
> >>> _
> >>> Searchable Archives: http://www.contesting.com/_topband - Topband
> >>> Reflector
> >>
> >> _
> >> Searchable Archives: http://www.contesting.com/_topband - Topband
> >> Reflector
> > _
> > Searchable Archives: http://www.contesting.com/_topband - Topband
> > Reflector
>
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> Reflector
>
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Re: Topband: TopBand DownUnder

[Mark - N5OT]

When I was a kid, we had a guy WB6ZKK who touted dipoles made of 
slinkys.  I am thinking some of the same electronic theory and design 
must have come into play.


Tree will remember.  Long live the old NTS.

73 - Mark N5OT


On 9/14/2021 5:21 PM, Grant Saviers wrote:
I've not heard the term "accordian" applied, but the Tornado Tuner 
expands and compresses a coil inside some pvc pipe to change L about 
2:1.  I have one (split) to tune the full 80m band at the center of an 
86ft rotatable dipole.  Your choice of Al or Cu coil tubing with a 
small Portescap gearhead motor driving a delrin (I think) leadscrew 
screw and reed switch for turns counting.


JKantennas makes an yagi with a Tornado.  Rumor has it a 3L 80m was 
built with them for full band coverage.


Originally, mostly used for tuning/loading verticals.  No sliding 
contacts makes it quiet and reliable.  I used an MFJ screwdriver 
control with 10 pushbutton 50KHz spaced presets for 80m but now have a 
RT21dc automatically tracking frequency to preset coil positions.  
GHeverywhere does the mapping.


Grant KZ1W

On 9/14/2021 12:54, Mark - N5OT wrote:
Wait.  There's such a thing as an "accodion inductor"?  I thought I 
knew everything.


I'll be glad when mowing season is over, too.

73 - Mark N5OT


On 9/14/2021 2:44 PM, w3...@roadrunner.com wrote:

Been reading the encouraging posts. So, I got up and heard good
activity, working:
VK3HJ - ZL1AZ - VK2WR at Ohio SR and up to 20 minutes after, when the
band faded out.

Gud to hear Luke, Dennis and Adrian coming through so well, through
moderate QRN. Unusually warm temps here for mid Sep. ( 85-88F) I took
an hour last week to tweak the 52' tall 1/4 wave INV-L. All 26 radials
are still coiled up and hanging from the walnut tree, until lawn
mowing season ends in mid Oct. Then I will uncurl them and retune
accordion inductor.

Heard AA1K this morning as well.


_
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Re: Topband: TopBand DownUnder

[Grant Saviers]

I've not heard the term "accordian" applied, but the Tornado Tuner 
expands and compresses a coil inside some pvc pipe to change L about 
2:1.  I have one (split) to tune the full 80m band at the center of an 
86ft rotatable dipole.  Your choice of Al or Cu coil tubing with a small 
Portescap gearhead motor driving a delrin (I think) leadscrew screw and 
reed switch for turns counting.


JKantennas makes an yagi with a Tornado.  Rumor has it a 3L 80m was 
built with them for full band coverage.


Originally, mostly used for tuning/loading verticals.  No sliding 
contacts makes it quiet and reliable.  I used an MFJ screwdriver control 
with 10 pushbutton 50KHz spaced presets for 80m but now have a RT21dc 
automatically tracking frequency to preset coil positions.  GHeverywhere 
does the mapping.


Grant KZ1W

On 9/14/2021 12:54, Mark - N5OT wrote:
Wait.  There's such a thing as an "accodion inductor"?  I thought I knew 
everything.


I'll be glad when mowing season is over, too.

73 - Mark N5OT


On 9/14/2021 2:44 PM, w3...@roadrunner.com wrote:

Been reading the encouraging posts. So, I got up and heard good
activity, working:
VK3HJ - ZL1AZ - VK2WR at Ohio SR and up to 20 minutes after, when the
band faded out.

Gud to hear Luke, Dennis and Adrian coming through so well, through
moderate QRN. Unusually warm temps here for mid Sep. ( 85-88F) I took
an hour last week to tweak the 52' tall 1/4 wave INV-L. All 26 radials
are still coiled up and hanging from the walnut tree, until lawn
mowing season ends in mid Oct. Then I will uncurl them and retune
accordion inductor.

Heard AA1K this morning as well.


_
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Re: Topband: TopBand DownUnder

[Mark - N5OT]

Wait.  There's such a thing as an "accodion inductor"?  I thought I knew 
everything.


I'll be glad when mowing season is over, too.

73 - Mark N5OT


On 9/14/2021 2:44 PM, w3...@roadrunner.com wrote:

Been reading the encouraging posts. So, I got up and heard good
activity, working:
VK3HJ - ZL1AZ - VK2WR at Ohio SR and up to 20 minutes after, when the
band faded out.

Gud to hear Luke, Dennis and Adrian coming through so well, through
moderate QRN. Unusually warm temps here for mid Sep. ( 85-88F) I took
an hour last week to tweak the 52' tall 1/4 wave INV-L. All 26 radials
are still coiled up and hanging from the walnut tree, until lawn
mowing season ends in mid Oct. Then I will uncurl them and retune
accordion inductor.

Heard AA1K this morning as well.


_
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Topband: TopBand DownUnder

[W3HKK]

Been reading the encouraging posts. So, I got up and heard good
activity, working:
VK3HJ - ZL1AZ - VK2WR at Ohio SR and up to 20 minutes after, when the
band faded out.

Gud to hear Luke, Dennis and Adrian coming through so well, through
moderate QRN. Unusually warm temps here for mid Sep. ( 85-88F) I took
an hour last week to tweak the 52' tall 1/4 wave INV-L. All 26 radials
are still coiled up and hanging from the walnut tree, until lawn
mowing season ends in mid Oct. Then I will uncurl them and retune
accordion inductor. 

Heard AA1K this morning as well. 


_
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