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http://www.hard-core-dx.com/nordicdx/antenna/special/baloon.html
Lines BC and CD are made of 1 support line and 1 thin copper wire for, again, a unit lenght weight of .001 lb, and strain capacity of 20 lb (only the support wire will bear any constrain, the copper wire only brought along on support wire, for it's antenna function. So only the support wire would be attached to the ground and the balloons.
http://www.creative-science.org.uk/heballoon.html
vertical antenna for the 80m band using a Helium (He) balloon NOTE: I am still working on this page, so sorry about the spelling, english and the science ! Balloons were filled with He gas and used to support 20 to 40m of thin copper wire which forms a vertical antenna for the 80m band.
http://rfcafe.com/references/qst/more-balloon-supported-antennas-qst-november-1940.htm
Apr 22, 2016 · Those balloons were intended to support antennas for extended periods of time - measured in weeks rather than hours. Here is a Short-Wave Craft article titled "Balloons Raise Shortwave Antenna." More on Balloon-Supported Antennas. Practical Dope on a Practical Sky Hook . By R. Carleton Greene,* W8PWU
https://www.qsl.net/g4vgo/balloon_antennas.htm
I use the wire and the line taped about every three feet. I leave about three feet of antenna wire dangling at the top to keep high voltage away from the support line. I learned this the hard way after bursting two balloons at key down (400 watts) and losing a balloon when the support line burned through.
https://www.youtube.com/watch?v=kVXJB-k8co0
Nov 02, 2016 · At the young age of 9, Bob W9BVX, visited an ARRL Field Day site with his dad and saw the most amazing thing; an HF antenna lifted into the air by a helium balloon. Ever since that day, his life's ...Author: KB9VBR Antennas
http://www.arrl.org/balloon-antenna
A Skyhook for the '90s QST May 1997, pp. 31-33 A technique for using large advertising balloons to hold up your Field Day antenna. Balloon Skyhooks QST August 1997, p. 69 Technical Correspondence comments on the above article.
https://www.jpole-antenna.com/2016/11/03/w9bvxs-helium-balloon-vertical-antenna/
W9BVX’s Helium Balloon Vertical Antenna. At the young age of 9, Bob W9BVX, visited an ARRL Field Day site with his dad and saw the most amazing thing; an …
https://www.simplehamradioantennas.com/2016/03/160-meter-balloon-antenna.html
Mar 03, 2016 · In this video, K0RU, W9RNY, and W9SN use a helium filled balloon to support a 3/8 wavelength vertical antenna for 160 meters. The antenna is 207-feet/63.10-meters long, has 4 ground-mounted radials, and uses a "tuner" at the base of the antenna. This trio of friends says the performance of this antenna is quite good.
https://ham.stackexchange.com/questions/7008/could-a-weather-balloon-make-a-good-antenna
Any balloon will surely leak helium over time. Several posters said that their balloons came down after a day or two. Safety concerns abound. Nearby power lines are obviously a concern. The balloon should probably have a tether line in addition to the antenna wire, in case the antenna wire breaks at the ground.
https://www.youtube.com/watch?v=A2BBtHcHrdg
Jan 08, 2014 · Contest station AK7AZ, a Special Interest Group of the Radio Society of Tucson, attempts to use a balloon lofted 160m antenna for the 2011 CQWWDX-SSB contest. Fun was had by all!
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