[NLRS] Rain Scatter today

Robert E. Wesslund rewesslund at worldnet.att.net
Thu Sep 23 16:15:10 EDT 2004


Gary, W0GHZ, and I, W0AUS ran an experiment using rain scatter today.

We started at 12:00  and beconed to the  south west where the National
Weather Bureau maps showed the front  and red was located.   It was about
over Willmar.  No copy.

At 12:30 we tried  but a red area was near St. Cloud.  I heard Garys beacon
but he could not copy my ssb.  Signals too weak.

At 1:00 pm  we tried with dishes to the west ,280,  The signals S-6 were
good but lots of doppler.  We used FM.

Aat 1:30 pm we tried again.   Dishes to the West , 280,  The signals were 20
over 9 but still too much doppler for ssb.  Used FM.   Then it started to
blow an my house.

The objective was to determine how far out we could use the red  spots on
the WX map.

Gary was in EN34lx and I was in EN35ka.    Willmar seeme to be too far for
back scatter but St. Cloud was detectable.

At the 40 and 30 mile distance the signals were good.

I would like to repeat the experiment when a front is moving in from the
west with more stations.
Note this was rain back scatter not rain direct scatter.   The distances for
direct or forward  would be about twice the distance.

.
73 Bob WØAUS




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