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[DX] Välil rassaa
En kehtaa selittää. Englantinikin mitä sattuu, kun on lauantai-ilta.
73, IS
X-Sender: is.sit@xxxxxxxxxx
From: ilkka suni <is.sit@xxxxxxxxxx>
THE ISS EVEN though a large object, due to its
shape is not an easy one. Its surfaces, I
believe reflect pretty much all over. Take for
instance the solar panels, you mentioned.
It is hard to comprehend, whether the ISS should
travel somewhere in the middle of the receiver and the presumed tx pinged.
METEORS AND commercial air traffic don't make
pinging the ISS any easier. It helps if there is
a phase of low MS-acticity. Also, the air
traffic above northern continental Europe is
low, at night. As to meteors, some days/nights
in February and March have been of potentially low activity.
To add to the challenge, especially from my
monitoring location, the ISS orbital track
varies. I have noticed, the ISS path runs most
regular just north of [UKR] Kiev. Unfortunately,
if I double the distance in the direction of
Kiev, there is pretty much nothing powerful
enough, to cast a signal reflected by the ISS.
In my 170 degrees, 2400 km away, there is emptiness.
And now, one must get back to the shape of the
ISS. Does it reflect a signal when it travels
close to a transmitter, or does it reflect when
it travels somewhere inbetween a transmitter and the receiver.
WELL, AT LEAST I have tried, tens of times. If not beyond a 100 times.
There are people who do a hell of a lot work, to
achieve the task. Then again, there are people
who sit on their lazy bottoms and bark at everything that moves.
One thing I am sure of is, I have reason to
believe it is possible to get a reflcetion by
the ISS. But these reflections would primarily
be rapid and faint, nothing like an MS ping or a familiar aircraft scatter.
What I have found interesting is, there have
been many occasions I have been monitoring 92.4
MHz. And right as the ISS travels just some 100
to 300 km north of Kiev, I get a brief
reflection. This symptom I found just too
regular. Then again, maybe it is just coincidental.
73, ilkka
[FIN-Joutseno]
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