Hello, Here is an update to DIGI_NED, version 0.4.0. DIGI_NED is currently finished work in maintenance mode.
Last week a bug report surfaced on Ubuntu 9.04. The satellite tracker made DIGI_NED crash. It turns out newer compilers have better check mechanisms to trap bugs where code writes outside the boundaries of an array. A bug like that surfaced in the DIGI_NED code and has been there for years. The bug is only visible when using a modern GCC compiler to build the code. The bug is fixed now. Now that I'm making a new package I also made some changes to the way satellites are announced. This was a long standing request by Bob Bruninga to alter it. The formatting has changed so the newer Kenwood radios can pick up the downlink QRG directly. Also the elevation is degrees was not clear and a precision in degrees is misleading since nobody is in the same position and the elevation is already changed by the time you look at it. This is now changed to a more simple HI and LOW where HI is 20 degrees or more and LOW is below that. Preceding HI and LOW it tha AMSAT satellite name. The aditional advantage is that the Kenwood speech chip can pronounce this so the satellite and elevation are known even without looking at the display. Another change is that the example digi_ned.ini file is now accordign to the new paradigm. The original digi_ned.ini file is move to an appendix at the end of the digi_ned.txt file; I did want to keep is because it contains a lot of usefull text and examples. The instant floppy now also generates a new paradigm digi_ned.ini file and uses the latest DIGI_NED build for DOS. Also the Windows version is now up to date to the current source code. I posted the source and binaries to my website: http://home.kpn.nl/pe1dnn Here are the changes to DIGI_NED itself from the Changes.txt file: Changes.txt 05-12-2009 version 0.4.0 - With Ubuntu 9.04 a bug sufaced in the satellite tracker code. Data was written outside the allocated space. It had no ill effects before but is definately a bug. Thanks to Michael Lussier for reporting it and helping to find the cause. - Also in the sattracker there was a long standing wish from Bob Bruninga to change the format of the satellite objects. The downlink frequency has now MHz attached to it so newer Kenwood receivers can tune to the QRG directly, the second frequency has the word "up". Elevation data is gone to make room. On the second screen (not visible on the TH-D7 but visible on the D700) there is the AMSAT designation and HI or LOW for elevation. HI means 20 degrees or more, LOW means below 20 degrees elevation. - Updated digi_ned.tle and digi_ned.sat. Note: only 12 satellites have current data. Others do not seem to be updated anymore. I have no idea what satellites to include, but at least we have de "APRS" satellites ISS, NO44, GO32 and AO51. - New command for sat users: "sat now". Shows sats that are in range now Thanks to Michael Lussier for the suggestion. - Moved the old digi_ned.ini to an appendix section in the digi_ned.txt manual. The supplied digi_ned.ini is now conform the new paradigm. - WIDE2-1 as first unused call in the path is now recognised as a local station (instead of 1-hop already done). APRS[tm] is a Trademark of Bob Bruninga, his home page is at "http://web.usna.navy.mil/~bruninga/aprs.html"; Kind regards, Henk. _______________________________________________ Xastir mailing list [email protected] http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
