Monday, December 27, 2010

calculating the DX-index for JO33hg using WSPR data

In an attempt to make more use of  the WSPR propagation data.

I  try to calculate a  "DX Index"  the  DXI  for JO33HG 

A simple calculation to start with:

I take 100 WSPR spots of the last 12 hour period.
Ordered by DX ascending.      calculated for my location.
Unique calls checked    excluding repeating  spots
Unique calls check can not be used with multyband.

The number count of DX >5000km  is the "DXI"   for  my location:

26 December  morning  the DXI was 40       for bands 500/160/80
26 December  evening        DXI was 54       including 10/15/20/40
27 December  morning 06UTC    the DXI has dropped to  10!

It is a start and gives some indication.
But it can use improvement by weighing the doubles into the figure
Now the activity is a major factor.
That means  it is not representative outside EU and USA  since WSPR is rare in the rest of the world.  Why some HAM's never try WSPR in a DX location like FK8 VP8  but just leave their expensive radio's unused??  it is a mystery to me.


and the one and only DX on 500kHz
Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az

2010-12-26 22:24 WD2XSH/17 0.501090 -23 0 FN42pb 1 PA0O JO33hg 5630 49
2010-12-26 22:46 WD2XSH/17 0.501090 -20 0 FN42pb 1 PA0O JO33hg 5630 49
2010-12-26 22:56 WD2XSH/17 0.501090 -22 0 FN42pb 1 PA0O JO33hg 5630 49

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