Hi all

May I ask you to pay some attention on the three following issues related to 
balloon/kite aerials ?

- using "high" altitude kites or balloons is often subject to a formal 
authorization (at least in France, and specially if you expect to use the 
aerial close to an airfield)

- even when weather is very good, very high DC voltages (many  kV) can appear 
(from natural local electric field) on the antenna wire. DC grounding of the 
wire is therefore mandatory

- avoid any AC HV lines (or schools, or roads, or irritable neighbours) in the 
vicinity of your experiment area.

Regards

Jean-Louis F6AGR