Frank
How about a picture of the ballon/corona ring -I think we all would
like to see what it looks like.
Someone here can no doubt post it where we can all access it?
73
Dave, ZL3FJ
----- Original Message -----
From: "Frank Dijkshoorn." <[email protected]>
To: <[email protected]>
Sent: Saturday, December 23, 2006 10:52 AM
Subject: LF: PE1RRF test on friday 22 dec.
Hi,
Thanks Michael, Stephan, Markus and Nicolas for your report on todays
test this erly morning.
This morning there was absolutely no wind and I tried my experimental
aluminum top wire under a Helium filled balloon.
The balloon was hanging during mij whole transmission on 136.3205 Khz
almost straight above mij aerial mast at 45 meters high.
My telescopic mast itself is 22 meters high, the balloon is 70 CM in
diameter and lifts up 23 meters wire and a smal corona ring of 12 CM.
My reception increeses enormous with this topwire and I did not expect
that the TX works also good.
The aluminumwire is very thin en having a high resistance, and my
earth system will be too small for this large aerial system.
I was surprised that this thin wire works so well with only the small
corona ring as top capacity.
The aerial current was around 3 Ampere, and the loading coil needs no
impendance transformer to get a good SWR.
73, from experimental station PE1RRF.
Ps. I live in a very industrialised area with heavy steel
constructions nearby my QTH, I think that makes the difference in
aerial height bigger than normal.
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