Daily Archives: 6/26/2008

Decoding LO-19 Telemetry Again

A while ago, I used my FM ht to decode telemetry from LO-19. So, I decided to give it a try again (getting bored with SEEDS). Here’s the result:

E LUSAT HI HI AO AVA AB6 AAB ADB AAA AB4 A4B AE6
                 131 176 117 187 111 174 147 156

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Channel                 Formula                 Value
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CH 1: +5 volts          (639/x)                 +4.88 volts
CH 2: +10 volts         (0.064*x)               +11.26 volts
CH 3: Cw xmtr. temp.    0.353*(134.7-x)         6.25 deg. C
CH 4: Output power TX   ((10.9+x)^2)/40.1       976 mw
CH 5: Box temp #4.      0.356*(136-x)           8.9 deg. C
CH 6: +10 v current     0.7*x                   122 ma
CH 7: +Z voltage panel  0.15*x                  22.1 volts
CH 8: +8.5 voltage      0.056*x                 +8.74 volts
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James A. Moorer’s Published Articles Page

I was trying to remember the name and author of a paper on implementing linear phase bandsplitting. It had applications to noise reduction, and seemed to be reasonably pleasing when I read the paper years ago, but all I could remember was that it was done by a Lucasfilm audio engineer, and mentioned the movie Amadeus. A few minutes of googling turned up James Moorer, and his extensive list of interesting papers.

James A. Moorer’s Published Articles Page
Linear-Phase Bandsplitting: Theory and Applications (with Mark Berger)