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External audio with USB 1.1 and Gentoo Linux PPC…
In the event that anyone decides to use a junked iBook in a Linux environment, I’m hoping that this article might save someone a lot of experimentation. The Problem: Started having trouble getting packet information through Soundmodem after a system upgrade to Kernel version 2.6.36-gentoo-r8. I began to investigate the sound card using Audacity then…
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Gentoo: Swappiness and CFLAGS for PPCs
Old iBooks are still around and most you can find for very cheap if not free as it was in my case. Ubuntu Linux runs quite well, but I must admit that my love of lengthy compiling and customization leave Gentoo as my primary mainstay. make.conf for iBook PowerPC 750/745/755 (G3): CHOST=”powerpc-unknown-linux-gnu” CFLAGS=”-mcpu=750 -Os -pipe”…
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Call sign appears on ariss.net…
Coordinates have yet to appear in the list, but I at least know that I got through via the ISS and APRS.
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APRS: Data received via ISS
A clear pass over Portland, OR at 4:02PM on 5/2/2011. Here’s the data from the TNC. 0:TX -> K2NXF>APX200,WIDE2-2::RS0ISS-4 :Hi all via ISS from K2NXF!{0C} 0:TNC-> KZ6O>APEG02,RS0ISS-4*:=3707.14N/12139.45W&73 Logan Morgan Hill CA 0:TNC-> RS0ISS-4>CQ,SGATE:>ARISS – International Space Station (BBS/APRS on) 0:TX -> K2NXF>APX200,WIDE2-2::RS0ISS-4 :Hi all via ISS from CN85{0D} 0:TX -> K2NXF>APX200,WIDE2-2::RS0ISS-4 :Hi all via ISS…
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Experiments with the ISS
I’ve attempted for months to catch a signal from the ISS as it quickly flies over head. Being in such a low-earth orbit, the longest pass you can catch is about ten minutes long. Yesterday, I was able to hear a bit of the APRS packets coming off the transmitter. Mac platforms, unfortunately, have little…
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PHP: Geocoding with cURL and JSON…
wanting to balance the work load for a site between server-side and client-side tasks, i abstracted this very simple geocoding class with Google Maps.
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experiments with SSTV…
The other day I was able to send transmit and receive an SSTV transmission across the room using two Yaesu HTs and a trial copy of MultiMode from Black Cat Systems. I was rather surprised by the quality of the analog television signal sent using an narrow-band FM carrier. I was required to construct a…