[Boatanchors] 10 meters

Robert Nickels ranickel at comcast.net
Wed Jun 5 16:40:44 EDT 2013


While it's a digital beacon mode that makes extensive use of digital 
signal processing "gain" to pull signals out from beneath the noise 
level,  my recent success with WSPR (Weak Signal Propagation Reporter) 
proves to me that the problem is much more one of "no operators" than 
"no propagation".    For example, my 10 milliwatt signal (generated by a 
Raspberry Pi driving a logic gate) on 20 meters is routinely heard all 
over North America and in Europe nearly every night.  Best DX has been 
Australia (14K km) and Wake Island.    While I'll be the first to agree 
that the DSP magic is the key,  there had to be propagation for 10 mw to 
be heard thousands of km away.

Automated reporting of signals heard makes it simple to prove that 
propagation is available:  See  http://wsprnet.org for more info. Click 
on "Map" and select 10, 15, or 17 meters to see what's been going on today.

73, Bob W9RAN


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