Topband: accordions

W3HKK at roadrunner.com W3HKK at roadrunner.com
Wed Sep 15 10:54:44 EDT 2021 

I got the idea of winding some #6 or 8? solid copper wire on a pvc
coke bottle from DJ0IP's website. Now I can "play" its length to about
2-2.5 times the original, and it resonates my 1/4 wave L nicely
between the coiled radials hanging on a tree position, and the
uncoiled radials spread out across the yard position. I just worked
the VK's and ZL with coiled radials. Not sure what that says about my
radial system ( 26x100' #17 alum wire. but it sure raises the SWR when
theyre laid out. Have at least moderate soil conductivity here in the
midwest. 

Have had no luck trying to bury the radials. The yard gets mushy in
places and the tractor digs up the wire, and eventually I mow the
radials. So I spend an hour or so each fall and spring
coiling/uncoiling.

	-----------------------------------------From:
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To: topband at contesting.com
Cc: 
Sent: Wednesday September 15 2021 7:59:44AM
Subject: Topband Digest, Vol 225, Issue 9

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 Today's Topics:

 1. TopBand DownUnder (W3HKK at roadrunner.com)
 2. Re: TopBand DownUnder (Mark - N5OT)
 3. Re: TopBand DownUnder (Grant Saviers)
 4. Re: TopBand DownUnder (Mark - N5OT)
 5. Re: TopBand DownUnder (Tree)
 6. Re: TopBand DownUnder (Mark - N5OT)
 7. Re: TopBand DownUnder (Grant Saviers)
 8. Re: TopBand DownUnder (W0MU Mike Fatchett)
 9. Re: TopBand DownUnder (MICHAEL ST ANGELO)
 10. VE6WZ loud as local today (Andree DL8LAS)
 11. Re: VE6WZ loud as local today (Tree)
 12. Re: VE6WZ loud as local today (VE6WZ Steve)
 13. Re: VE6WZ loud as local today (Jim Brown)
 14. Results: "Fusing" Beverage Antennas From Falling Trees (Randy)

 ----------------------------------------------------------------------

 Message: 1
 Date: Tue, 14 Sep 2021 19:44:10 +0000
 From: W3HKK at roadrunner.com
 To: "'topband at contesting.com'" 
 Subject: Topband: TopBand DownUnder
 Message-ID: 
 Content-Type: text/plain; charset=UTF-8

 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.

 ------------------------------

 Message: 2
 Date: Tue, 14 Sep 2021 14:54:56 -0500
 From: Mark - N5OT 
 To: TopBand List 
 Subject: Re: Topband: TopBand DownUnder
 Message-ID: 
 Content-Type: text/plain; charset=utf-8; format=flowed

 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, W3HKK at 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 [1] -
Topband Reflector

 ------------------------------

 Message: 3
 Date: Tue, 14 Sep 2021 15:21:41 -0700
 From: Grant Saviers 
 To: topband at contesting.com
 Subject: Re: Topband: TopBand DownUnder
 Message-ID: 
 Content-Type: text/plain; charset=utf-8; format=flowed

 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, W3HKK at 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 [2] -
Topband
 >> Reflector
 >
 > _________________
 > Searchable Archives: http://www.contesting.com/_topband [3] -
Topband Reflector

 ------------------------------

 Message: 4
 Date: Tue, 14 Sep 2021 17:37:11 -0500
 From: Mark - N5OT 
 To: TopBand List 
 Subject: Re: Topband: TopBand DownUnder
 Message-ID: 
 Content-Type: text/plain; charset=utf-8; format=flowed

 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, W3HKK at 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 [4] -
Topband
 >>> Reflector
 >>
 >> _________________
 >> Searchable Archives: http://www.contesting.com/_topband [5] -
Topband
 >> Reflector
 > _________________
 > Searchable Archives: http://www.contesting.com/_topband [6] -
Topband
 > Reflector

 ------------------------------

 Message: 5
 Date: Tue, 14 Sep 2021 15:39:21 -0700
 From: Tree 
 To: Mark - N5OT 
 Cc: TopBand List 
 Subject: Re: Topband: TopBand DownUnder
 Message-ID:

 Content-Type: text/plain; charset="UTF-8"

 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, W3HKK at 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 [7] -
Topband
 > >>> Reflector
 > >>
 > >> _________________
 > >> Searchable Archives: http://www.contesting.com/_topband [8] -
Topband
 > >> Reflector
 > > _________________
 > > Searchable Archives: http://www.contesting.com/_topband [9] -
Topband
 > > Reflector
 >
 > _________________
 > Searchable Archives: http://www.contesting.com/_topband [10] -
Topband
 > Reflector
 >

 ------------------------------

 Message: 6
 Date: Tue, 14 Sep 2021 17:45:51 -0500
 From: Mark - N5OT 
 To: TopBand List 
 Subject: Re: Topband: TopBand DownUnder
 Message-ID: 
 Content-Type: text/plain; charset=utf-8; format=flowed

 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, W3HKK at 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
 /> >  [11] - Topband
 > >>> Reflector
 > >>
 > >> _________________
 > >> Searchable Archives: http://www.contesting.com/_topband
 /> >  [12] - Topband
 > >> Reflector
 > > _________________
 > > Searchable Archives: http://www.contesting.com/_topband
 /> >  [13] - Topband
 > > Reflector
 >
 > _________________
 > Searchable Archives: http://www.contesting.com/_topband
 /> >  [14] - Topband Reflector
 >

 ------------------------------

 Message: 7
 Date: Tue, 14 Sep 2021 16:08:48 -0700
 From: Grant Saviers 
 To: topband at contesting.com
 Subject: Re: Topband: TopBand DownUnder
 Message-ID: 
 Content-Type: text/plain; charset=utf-8; format=flowed

 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, W3HKK at 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
 /> >> ???  [15] - Topband
 >> ??? >>> Reflector
 >> ??? >>
 >> ??? >> _________________
 >> ??? >> Searchable Archives: http://www.contesting.com/_topband
 /> >> ???  [16] - Topband
 >> ??? >> Reflector
 >> ??? > _________________
 >> ??? > Searchable Archives: http://www.contesting.com/_topband
 /> >> ???  [17] - Topband
 >> ??? > Reflector
 >>
 >> ??? _________________
 >> ??? Searchable Archives: http://www.contesting.com/_topband
 /> >> ???  [18] - Topband Reflector
 >>
 >
 > _________________
 > Searchable Archives: http://www.contesting.com/_topband [19] -
Topband Reflector

 ------------------------------

 Message: 8
 Date: Tue, 14 Sep 2021 19:33:00 -0600
 From: W0MU Mike Fatchett 
 To: topband at contesting.com
 Subject: Re: Topband: TopBand DownUnder
 Message-ID: 
 Content-Type: text/plain; charset=utf-8; format=flowed

 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, W3HKK at 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
 /> >>> ???  [20] - Topband
 >>> ??? >>> Reflector
 >>> ??? >>
 >>> ??? >> _________________
 >>> ??? >> Searchable Archives: http://www.contesting.com/_topband
 /> >>> ???  [21] - Topband
 >>> ??? >> Reflector
 >>> ??? > _________________
 >>> ??? > Searchable Archives: http://www.contesting.com/_topband
 /> >>> ???  [22] - Topband
 >>> ??? > Reflector
 >>>
 >>> ??? _________________
 >>> ??? Searchable Archives: http://www.contesting.com/_topband
 /> >>> ???  [23] - Topband Reflector
 >>>
 >>
 >> _________________
 >> Searchable Archives: http://www.contesting.com/_topband [24] -
Topband
 >> Reflector
 > _________________
 > Searchable Archives: http://www.contesting.com/_topband [25] -
Topband
 > Reflector

 ------------------------------

 Message: 9
 Date: Tue, 14 Sep 2021 22:01:40 -0400 (EDT)
 From: MICHAEL ST ANGELO 
 To: W0MU Mike Fatchett , topband at contesting.com
 Subject: Re: Topband: TopBand DownUnder
 Message-ID: 
 Content-Type: text/plain; charset=UTF-8

 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
 > >

 ------------------------------

 Message: 10
 Date: Wed, 15 Sep 2021 04:14:33 +0000 (UTC)
 From: Andree DL8LAS 
 To: topband reflector 
 Subject: Topband: VE6WZ loud as local today
 Message-ID: 
 Content-Type: text/plain; charset=UTF-8

 Nice signal from Steve VE6WZ today....but not much activity from NA..
https://youtu.be/T-TVfMUeu68
 />
 wwwdl8las.com

 ------------------------------

 Message: 11
 Date: Tue, 14 Sep 2021 21:18:36 -0700
 From: Tree 
 To: Andree DL8LAS 
 Cc: topband reflector 
 Subject: Re: Topband: VE6WZ loud as local today
 Message-ID:

 Content-Type: text/plain; charset="UTF-8"

 OK1CF was coming in pretty good here - but could not hear me.

 First EU heard for me this season.

 Tree N6TR/7

 On Tue, Sep 14, 2021 at 9:14 PM Andree DL8LAS via Topband <
 topband at contestingcom> wrote:

 > Nice signal from Steve VE6WZ today....but not much activity from
NA..
 > https://youtu.be/T-TVfMUeu68
 /> >
 > wwwdl8las.com
 > _________________
 > Searchable Archives: http://www.contesting.com/_topband [26] -
Topband
 > Reflector
 >

 ------------------------------

 Message: 12
 Date: Tue, 14 Sep 2021 23:04:24 -0600 (MDT)
 From: VE6WZ Steve 
 To: Andree DL8LAS 
 Cc: topband reflector 
 Subject: Re: Topband: VE6WZ loud as local today
 Message-ID:

 Content-Type: text/plain; charset=utf-8

 Tonight 6 EU logged.
 It was nice work Len SM7BIC for our first QSO this season. Groan
SM6DHF called in and both OZ7YY and OK1CF peaked up nicely later in
the evening. F5IN peaked up enough for a QSO, but Roger G3YRO couldn?t
hear me tonight.
 Indeed Andy DL8LAS really came up to a solid and steady 599 for about
15 minutes during his CQs.
 The band has been open to EU in VE6 every night since Sept 11.

 73, de Steve, ve6wz

 Sent from my iPad

 > On Sep 14, 2021, at 10:17 PM, Andree DL8LAS via Topband  wrote:
 >
 > ?Nice signal from Steve VE6WZ today....but not much activity from
NA..
 > https://youtu.be/T-TVfMUeu68
 /> >
 > www.dl8las.com
 > _________________
 > Searchable Archives: http://www.contesting.com/_topband [27] -
Topband Reflector

 ------------------------------

 Message: 13
 Date: Wed, 15 Sep 2021 01:50:56 -0700
 From: Jim Brown 
 To: topband at contesting.com
 Subject: Re: Topband: VE6WZ loud as local today
 Message-ID:

 Content-Type: text/plain; charset=utf-8; format=flowed

 On 9/14/2021 9:14 PM, Andree DL8LAS via Topband wrote:
 > Nice signal from Steve VE6WZ today....but not much activity from NA

 Steve has built himself a magnificent super-station on property that
he
 carefully selected on a knoll north of Calgary, where he lives. He's
 done a lot to document it, with links on his qrz.com page. It's a
great
 example of classic engineering -- design to solve specific
 problems/needs. He's in the middle of nowhere with excellent RX
antennas
 and custom-built TX antennas. It's a whole lot of classic stuff done
right.

 Start with this video. https://www.youtube.com/watch?v=upyHWBUAdk4
 /> Then this paper.
 https://drive.google.com/file/d/1eVklkZtlJW93JIJ9oDqbCyl-Jkik6YEX/view
 /> And this, about his 160M TX antenna.
 https://youtu.be/VXDTEj0xDJU
 />
 Bottom line -- Steve is loud because he's a great engineer and has
built
 a great station in the middle of nowhere where he can hear! My hat is
 off to him!

 73, Jim K9YC

 ------------------------------

 Message: 14
 Date: Wed, 15 Sep 2021 11:58:04 +0000 (UTC)
 From: Randy 
 To: topband at contesting.com
 Subject: Topband: Results: "Fusing" Beverage Antennas From Falling
 Trees
 Message-ID: 
 Content-Type: text/plain; charset=UTF-8

 I thought that I would report to the reflector the results of my
efforts to find a way to deal with falling branches and trees causing
my beverage wires to need constant repair.?My beverages are 8 feet
high and 650 feet long and run through densely wooded areas.? I use
WD-1A military comm wire which is tough stuff but breaks when a large
branch or tree fall across it.?Several months ago I posted a request
on the reflector looking for ideas as to how to deal with the
problem.? I got several very good suggestions including one from Steve
VE6WZ. He suggested using a counterweight on the ground at each end of
the beverage.? The weight would will be pulled upward if a tree fell
across the wire and hopefully the wire would not break.???Knowing that
we have lots of summer storms with high winds I arranged one of the
beverages with the weights in May.? The new system worked great.? I
had large trees fall across the beverage on more than one occasion and
all I need to do was remove the trees
 and the weights came back to their resting position.?I found that a
15 pound weight at each end kept the 650 foot wire taut but would also
be light enough to be lifted by a falling tree.? I used plastic
electric fence insulators to support the beverage along its length
except at the ends where I used small pulleys to lessen the stress on
the wire where it bends downward.?I have now installed all my
beverages using this system.? It will be interesting to see if they
survive the winter storms.?Thanks to VE6WZ for the idea.?73?Randy W9ZR

 ------------------------------

 Subject: Digest Footer

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 Topband mailing list
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 ------------------------------

 End of Topband Digest, Vol 225, Issue 9
 ***************************************


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