Why is WSPR able to reach far flung areas when other digital modes seem more restricted

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Mon, 2011/10/17 - 10:08
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G3XDH
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Joined: 2010/12/16 - 12:12
Why is WSPR able to reach far flung areas when other digital modes seem more restricted

Have been playing with digital for a year or so ..

Regularly reach VK (never got ZL yet though) and South America with my 5 watts on WSPR .. but find I am much more restricted in coverage on Fldigi .. get to VE & W and into R but never the great distances, Occasionally hear Eastern Europe reach Japan, but not heard western European stations work to far east or South America.

So why is WSPR capable of reaching to/being heard at the greater distances?

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