Greetings to All !
Thank you to everyone who has responded to my original note.
Looks like I will have to do my own search for the balloons as
no one included a source for them BUT did include lots of great
user info.
Again, thanks.
As in my past, I will be generating the H2 gas where chillers are
used to control the rate of gas generation (minimizes H2O vapor
condensing inside the balloon).
A medium sized party balloon supported my first attempt at a
L/2 160-meter vertical that used thin wire (maybe #28). In
still air it was nearly vertical above me but in the wind it would
approach 45-degree angles to the horizon.
All worked well and I was able to work many East coast QSO's
(70-W) until it started raining. The added weight of water on the
balloon brought it to the ground. Some will say the losses using
such small wire are excessive - probably true - but while it was
operational, it performed better than any antenna I could hide
at my HOA antenna restricted QTH.
Again, my thank you to everyone who responded.
73 Dick - w7wkr at CN97uj
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