Interesting observations on meteor scatter
Snip: It's interesting to observe
that there seems to be a Meteor Scatter "Brick
Wall" at a bit over 2400km.
My personal best distance using meteor scatter is 2230km. The other day
I copied a strong ping from
K2TXB a distance of 2339km. The “Brick Wall” as you call it
is probably somewhere around the 2400km
distance and very real. Here I often see the 1931km or 1200 mile
distance spoken of as a “barrier”.
Meaning it is more difficult to work distances over 1200 miles requiring
more time, schedules and a
major meteor shower doesn’t hurt either. The barrier like the
brick wall is not fixed and will move
slightly a few miles which makes it all interesting. Distances
less than 1100 miles I tend to think
of as “automatic” during morning hours except for close
stations where back scatter is necessary.
I find more rocks available for 50MHz but it appears the “barrier”
and “brick wall” distances are the same
for both bands?
From: Leigh Rainbird
Sent: Saturday, May 01, 2004 12:11
Subject: [wsjtgroup] VK - WSJT
Rex VK7MO was about 2360 km from my QTH this
morning and despite FSK441b
attempts from about 5.50am (after an early morning
wake up call from Rex),
nothing was copied at either end.
Rex was at Norseman (PF07vt) - a distance of
2209km from VK3HZ at Melbourne.
Rex did complete with Ron VK3AFW and David
VK3HZ. Several good, big burns
It's interesting to observe that there seems to be
a Meteor Scatter "Brick
Wall" at a bit over 2400km. Rex
succeeded over 2336km, one ping at 2423km
and nothing at 2452km. I guess 1200km must
be the furthest that a meteor
burn can be "seen".
JT44 tropo tests last week from here to Garry
VK5ZK at Goolwa, south of
Adelaide @ 754 km were very promising. Each time
we have run a test I have
been dropping the power. I think Garry has been
maintaining his 100w.
Last test on Wednesday evening (?) we easily
completed and I was running 20
watts for the whole contact. I'll try for 10w next
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