Hello Alberto and Daniele and VLF,
Yes, this is what Chris/4X1RF observed as well. It can make a very
significant difference just to lift the antenna by 2m higher above the
previous location!
73, Stefan/DK7FC
Am 15.06.2011 16:50, schrieb Alberto di Bene:
On 6/15/2011 3:54 PM, Daniele Tincani wrote:
Additionally, I didn't perform specific tests with
the E-probes, like for example attaching them to a fishing rod (or
other support)
to put them well outside of my balcony at 5th floor, that probably
would have given a substantial improvement.
I can confirm from my direct experience that an E-probe must be
placed up in the air, free from obstacles.
When I built for the first time the Roelof's mini-whip I tested it on
the balcony of my house, on the second
floor of a two-story single house. It performed so badly that I thought
to have wasted my time and my money.
Then, remembering a few suggestions read on Internet, I moved it to the
highest point of the highest chimney
of the house, far from obstacles, with a free 360 degrees range, on top
of a 2-meter pole.
It resurrected to a new life ! This is how the Russian Alpha stations
are received from my mini-whip on the roof :
So my suggestion is to place an E-probe antenna as high as possible,
free from nearby obstacles.
73 Alberto I2PHD
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