I have received my callsign from Industry Canada, it is simple and easy to remember if you are into the OSS scene - VE3OGG. Understandably, I must take this moment to disclaim myself from using this callsign as a user name in places like Slashdot or pretty much anywhere except on the radio or through official KurtisMcCartney/HAM Radio correspondences.
I've included a longer profile and my interests to the QRZ HAM Radio Operator Database. The QRZ database offers listing to its users and interoperability with many of the open-source applications that I use. Receive a callsign? Right-click and "Check QRZ" and the information is visible in your communications field. It reduces the need to swap between the operations panel and a browser window.
Callsigns are strange, a centralized identification system with tight limits and unexplained restrictions. I had an interesting shortlist, which if current callsign databases didn't exist would have meant failure. All of the best names are taken, even on the VA3 second name set. So in my case it isn't unacceptable to be reduced to a file format. OGG - Vorbis, Theora, or any other future variation.
I'll be looking forward to sending out a message in the new year.
