Posts Tagged ‘kids say the darndest things’

Getting off Windows XP

May 18th, 2014

With the impending end-of-life of Windows XP a few weeks ago, I found myself with a bit of a predicament:  My shack PC is a dual-core 64-bit system (3.0-GHz Pentium-D) so it’s not really a slouch performer.  But, it had only 1 GB of RAM, which was fine for XP.  I could upgrade my RAM and upgrade Windows, or I could upgrade the RAM and dispense with Windows altogether.

I opted to drop Windows.

My almost-3-year-old son helped me install 4 GB of RAM last weekend.  (Actually, he spent more time asking about the capacitors on the motherboard. Kids these days.)

I’m a long-time GNU/Linux user (just over 15 years, actually) and fan.  However, as I wrote once in the past, I’m also fan of getting things done.  So, I kept using Windows 95 / MS-DOS for many years on my hamshack computer, with a brief several-year foray into using Windows XP when I moved to TR4W logging software.  Linux finally became ready for prime time in my hamshack when Kevin, W9CF, ported TR-Log over a couple of years ago.  After ensuring it wasn’t a fad, I was ready to jump.  Over the past week or so, I’ve been tailoring the setup of everything to bring back the functionality I had previously.

So, what broke?

  • I have an nVidia graphics card for my second monitor. Failure. Not sure how much I care. Maybe I’ll look for an old ATI card or something else with drivers?  Anybody have a plain PCI video card with VGA or HDMI kicking around?
  • Windows-specific software that I’ll probably just quit using:  AVR Studio and SH5. Didn’t really use these much anyway.
  • Now, for the truly bizarre:  My Elecraft K2/100 throws an ERR 080 on power-up if I disrupt communication between it and TR-Linux (does not matter if the K2 goes off first or TRLinux quits first).  I have to disconnect the RS-232 cable at the back of the K2 for a while and then it comes back OK.
  • ARRL’s Trusted QSL software version 2.0.1 didn’t compile immediately without dependency problems. Further study indicated.

And, what works?

  • TRLinux talks to both the K3/100 and the K2/100, as well as the YCCC SO2R+ controller.
  • Made some QSOs and uploaded the signed log to LoTW.
  • Pretty much everything else…

7-bit Barker Code and Matched Filter

January 8th, 2012

Teaching Evan the basics of radar signal processing with this baby-block 7-bit Barker code and its matched filter.