Hello Eike, |
Am 02.08.2018 17:53, schrieb Eike DL3IKE:
AArgh, such a FAKE! I didn't know what CCA means and didn't spend much
attention to these 3 characters. I think the seller should have
explained what CCA means! Why are they producing Alu-wire with a copper
layer? Because of the Millions of radio amateurs requesting it? Or,
maybe, because they want to sell it as pure copper?
I'm angry that there is no information on the website. I should send it
back to them! ...and buy something real. At least i will call them as
tell them what i think about this practice.
Aluminium will also have poor mechanical behaviour i fear, maybe it
breaks after some experiments?
Well, maybe on the upper HF bands it doesn't matter, skin effect...,
but not down below 9 kHz!
It is lightweight and has good RF conductivity.
The resistance will be about 1.5 times higher, i.e. i will have a
further 10 Ohm in the loop :-(
That means i have to spend another 10 W at 1 A antenna current and 40W
at 2 A antenna current.
What now, all the stuff is already prepared for the weekend. If i send
it back then i can do nothing this weekend. But i like to! And live is
to short to waste time. At least i will reduce the losses from 175 Ohm
to 80 Ohm, which means i will gain 3.4 dB. But it could have been 4 dB!
OH, i know that kite! :-) A nice site. I see you are someone active,
not only sitting in front of the monitor :-)
I used it for my kite-antenna, see my page on qrz.com
That 135m high tower, can you install an antenna from there, a sloper,
for LF or so?