Hi to All… has anyone had any experience with using a drone to fly a “pull
wire” over the tree tops? I asked this same question of some local ham friends,
and they said I must be rich in order to sacrifice a $1000.00 drone on a tree
limb :):):)
Any thoughts???
Thanks, Rocky ~ W6RJK
On Dec 26, 2018, at 5:04 PM, Kelly Taylor
<ve4xt@mymts.net<mailto:ve4xt@mymts.net>> wrote:
I’ve had some success on shorter (40-50ft) trees using a slingshot, with a
high-density weight (heavy but not huge). Of course, it helps I can shoot in
such a way as to not care where it lands.
If your trees are fairly dense, a projectile such as a tennis ball may prove
problematic: I’ve had tennis balls get caught in the foliage and not be heavy
enough (and too large) to fall through. The tennis ball also seems to absorb
enough of the slingshot’s kinetic energy, leaving less energy for moving the
ball.
Seeing the projectile can also be a problem, so I’ve tied coloured tape to the
projectile (usually a large nut).
Be wary of how you fasten your pull rope to the monofilament: a large knot can
get caught in the branches and render the effort futile. I’ve had success tying
two overhand knots (one on each) and then taping over the knot to hold the
knots and provide a smooth transition. Going slowly once the knot reaches the
branch helps.
A tree climber like Jim recommends or a buddy with a cherry picker would be
ideal.
73, kelly, ve4xt
Sent from my iPhone
On Dec 26, 2018, at 18:39, wesattaway
<wesattaway@bellsouth.net<mailto:wesattaway@bellsouth.net>> wrote:
Good advice from Jim. I use a tennis ball launcher, with good results shooting
into tall Pines. It takes some practice to be able to gauge the correct air
pressure to use for certain shots.
-----------------------------------Wes Attaway (N5WA)(318) 393-3289 -
Shreveport, LAComputer/Cellphone
ForensicsAttawayForensics.com<http://ForensicsAttawayForensics.com>
------------------------------------
-------- Original message --------From: Jim Brown
<jim@audiosystemsgroup.com<mailto:jim@audiosystemsgroup.com>> Date: 12/26/18
6:19 PM (GMT-06:00) To:
towertalk@contesting.com<mailto:towertalk@contesting.com> Subject: Re:
[TowerTalk] Ropes in trees
On 12/26/2018 3:27 PM, Brad Anbro wrote:
Hello all,
I imagine that this subject has been covered in the past but rather than search
the archives, I thought that
I'd just ask the group for some information.
What is available for purchase on the market for getting ropes into trees? I am
planning on putting up
an inverted L wire antenna and need to get a couple of ropes installed for
supporting the antenna.
What kind of trees? How tall? Three of the most useful tools are
1) the Big Shot, an industrial-strength sling shot from Sherrill Tree
Service. You want it with the fishing reel and several small weighted
throw bags. They're in NC.
2) the pneumatic tennis ball launcher. When I moved to a redwood forest
in NorCal in 2006, K2RD brought his over and cleared the top of my
tallest redwood by at least 10 ft on the first shot.
http://www.antennalaunchers.com/antlaunching.html
3) Tree climbers. They're expensive, but good ones can get wires higher
in tall trees with pulleys that allow greater tension.
73, Jim K9YC
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com<mailto:TowerTalk@contesting.com>
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|