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Surfin’: Where’s Sebastian?


By Stan Horzepa, WA1LOU
Contributing Editor

This week, Surfin’ asks “Where’s D08SEM?” and finds him -- along with some cool Mac OS X SDR applications.

Michael Beaveridge, VE6UE/VE6AQS, asked me what happened to the website of Sebastian Mrozek, DO8SEM, the author of DSP Radio for the Mac OS X using SoftRock-like hardware, which I described here nearly three years ago.

Sebastian’s website, mentioned in that 2009 installment of Surfin’, had disappeared off the face of the Earth. It took a little doing (or should I say “a little Googling”), but I finally tracked Sebastian down. He has a new cool call sign (DL2SDR) and a cool new website, so check it out.

While looking for Sebastian, I moseyed on over Mac Ham Radio and although I did not find Sebastian there, I did find another SDR (software defined radio) Mac application, Cute SDR from Moe Wheatley, AE4JY, which is an open-source application for the RFSPACE radios.

I also moseyed on over to NH6Z’s website; I noticed that Jeremy has changed the name of MacHPSDR to Heterodyne, which is SDR program for the OpenHPSDR hardware system. In addition to Heterodyne, Jeremy offers Flynn, a firmware update tool for the OpenHPSDR system, and Mac packages of other people’s software, including Xastir, an Automatic Packet Reporting System (APRS) client for UNIX-based systems, and WSPR (Weak Signal Propagation Reporter), a protocol for probing potential propagation paths with low-power transmissions.

Until next time, keep on surfin’!

Editor’s note: Stan Horzepa, WA1LOU, watched the John Wayne version of True Grit the other night and now he can’t stop moseying. To contact Stan, send e-mail or add comments to the WA1LOU blog.



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