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OZ9AEC

Interference on HO-68 linear transponder

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Wednesday, November 10, Pete MI3EPN reported that he heard what sounded like FM transmissions on the lower end of the HO-68 / XW-1 linear transponder and it didn't sound like ham radio operators making contact over a satellite. It was an interesting coincidence because I could remember that I have seen some FM-like signals while I was recording HO-68 on Tuesday evening but I thought it was some local interference.

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Replace Shotwell with F-spot as default editor

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As you may already know, Ubuntu 10.10 ditched F-spot as default photo organizer in favor of Shotwell. Now, Shotwell may be a better photo organizer than F-spot – I can't comment on that since I do not use any of these apps for organizing – it does have at least one very significant flaw that made switch back to F-spot.

Why do I need any of these apps if don't use them for organizing? Laziness, I guess. In Ubuntu 10.04 I found a very convenient way to do some very simple editing tasks such as cropping. If I opened a photo in Eog (Eye of Gnome - the default image viewer) there was a button on the right end of the toolbar called "Edit Image", which opened the image in F-spot. In F-spot I could do the cropping then save the image with all original EXIF metadata preserved. In Ubuntu 10.10 this "Edit Image" button opens Shotwell and I can do the cropping here as well, unfortunately, when saving the image all original EXIF metadata will be lost forever! From a photographer's point of view this is extremely bad and there should at least be a warning of some kind.

Fortunately I still had the original photo in my camera and no harm done.

Next I investigated how to replace Shotwell with F-spot as default editor for Eog. One would think that this would be configurable via the preferences. Well, yeah, sort of, if you call the gconf-editor a preferences dialog. I found a related post on the Ubuntu Launchpad where someone wanted to replace F-spot with Gimp. Basically the same problem and it also worked the other way around for replacing Shotwell with F-spot. After doing so I could safely uninstall Shotwell – No, it will not remove the "ubuntu-desktop" package ;-)

 

Gpredict 1.3 released

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Gpredict 1.3 has been packaged and released. The source code is already available from the SourceForge download site. Binary packages will follow soon.

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My HF2V during winter 2010/2011

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I took a few photos of my Butternut HF2V vertical antenna during my winter holidays 2010/2011. You can click on the images to get higher resolution photos. Enjoy!

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The e-CAM32 and e-CAM50 cameras

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As I mentioned in my previous post, I had only had limited success with the Caspa VL and Logitech UVC cameras. While both cameras work with the Gumstix, the Caspa seems to take poor images while the Logitech USB camera performance is limited by low USB bandwidth. Therefore, I have decided to try my luck with cameras from e-Con Systems.

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