Dynasonde diary

2008

• 02 Jan 2008
  HV and fils were off.
• 14 & 15 Jan 2008
  Started putting in 2A HV fuses instead of the 1A fuses I had inadvertently been putting in. The 1A fuses are probably the cause of the frequent fuse blowing.
• 28 May 2008
  Found the floppy drive won't work. Replaced it with one salvaged from a Tci compter like dynamite.
• 25 June 2008
  HV and fils off: HV dump while testing papi3 cross-modulation experiment. Burning smell !.
• 28 Aug 2008
  Removed HPTX: All varistors bad, also the wire-wound resistor with the centre tap was half burnt resulting in 500 Ohm instead of 250 Ohm.
• 01 Sept 2008
  Put repaired HPTX back. Discovered R17 was burn't open.
• 17 Nov 2008
  The dynasonde clock was about 26 mins late between presumably about 15-16 UT on 16 Nov to 08:00 UT 17 Nov. Freq ref (5MHz) from EISCAT was probably tampered with.
• 31 Dec 2008
  HV went off between 03:00 and 03:06 UT.
• 
  

  ---

  [ Dynasonde page] This page is maintained by Mike, who is solely responsible for the content, or lack thereof :-/ Last updated 13 Apr-2010