Topband: Pneumatic device for throwing antenna wire over the top ofa tree

[Charles Moizeau]

A disadvantage of using a fishing reel to store the line is that there is no easy way to limit the maximum travel of the projectile.  Thus the line can end up in a tree beyond the targeted one, or in any other undesired place.
 
A better approach is to estimate the distance to the target and lay out that much line in a back and forth (multiple Ss) pattern on a plastic tarpaulin.  I use a 12' x 20' tarpaulin, folded to quarter size to present a 6' x 10' surface.  The tarpaulin offers the line a friction-free surface.  Line that is not laid out is stored on a 9" diameter kite flyer's hoop spool.  After a shot is made and the laid-out line is in the air, the hoop spool jumps up, a turn or two of additional line is dispatched, and the weight of the spool and stored line gently brakes the projectile to limit its travel.
 
I prefer a compound bow and weighted arrow, for the considerable length-to-mass ratio of an arrow facilitates its passage through leaves and twigs whereas a lead weight is likely to ricochet wildly after striking any interfering object.
 
73,
 
Charles, W2SH
 
 
> From: sebdesn at comcast.net
> To: topband at contesting.com
> Date: Thu, 14 Oct 2010 08:28:41 -0600
> Subject: Re: Topband: Pneumatic device for throwing antenna wire over the top ofa tree
> 
> I went to Walmart and bought a cheap spinning reel(Attach it to the sling
> shot) . a sling shot, a small lead fishing weight. and some light fishing
> line line.
> Its very easy to shoot it a hundred feet over a tree and then attach rope to
> it, to pull wire over. also very reasonable price/ wise...
> Bud WOHG
> -
> 
> Dear all
> 
> some time ago there were some discussions on reflector about how to
> make a pneumatic device that could be used to launch a fishing line
> with sinker over a top of a tree for attaching wire antennas..
> 
> 
> 73 de VK2CCC
> 
> www.qrz.lt/ly1df
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK
> 
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK