Surfin': Whispering on 30 Meters
WSPR (pronounced "whisper") stands for Weak Signal Propagation Reporter, a program that implements transmitting and receiving for a digital soundcard mode called MEPT_JT, an acronym for Manned Experimental Propagation Tests by Joe Taylor, K1JT.
Thanks to Brad Noblet, WA8WDQ, for alerting me to WSPR, and wrote that "folks are hovering on 30 meters around 10.140.100 with this code to see how far they can get on mW power.' On March 26, Larry Putman, WB3ANQ, clocked 11,557 miles/18,600 km (Maryland to Perth) using WSPR with a mere 500 mW! For more WSPR successes, visit the MEPT Spot page, where folks are logging their WSPR/MEPT catches.
You can download WSPR here and get program instructions here. Make sure to visit the WSJT Home Page for software updates and other news concerning WSPR. Also, for some WSPR operating tips, see what K3UK, Andy O'Brien, has to say on the subject at here.
By the way, WA8WDQ "thinks this mode would be excellent for determining VHF propagation or better still, anything from 10 meters on up. It would be cool to see a nationwide network of these 'beacons' deployed."
Until next time, keep on surfin'!
Editor's note: Stan Horzepa, WA1LOU, speaks softly, but carries a big virtual surfboard. To communicate with Stan, send him e-mail or add comments to his blog. By the way, every installment of Surfin' is indexed here, so go look it up.
Stan Horzepa, WA1LOU