[amsat-bb] Decoding UO-11 (UOSAT-2)

[Rick Walter]

Hi Bob. I copied and decoded UO-11 telemetry for years and used it in my
Earth Science classes to show students near earth orbit space conditions.
When you said "Others here had said UO-11 gives garbage decodes", they
actually meant the telemetry you decode from the tones will look fine like
what you included, but when you put the values in the formulas to determine
the "real" data, that value will be garbage. You can see the date and time
are way off in the header of each frame of 7 lines.

I sent this on Friday at 2:33 PM EDT. You may have 3 replies ahead of me
because I never know how long it finally takes to show up on the BB. I do
not see any replies at this time.
73,
Rick - WB3CSY

On Fri, Jul 31, 2015 at 12:57 PM, Bob KD7YZ <kd7yz at denstarfarm.us> wrote:

> Once I got the correct Mode-Setting for UO-11, I had no trouble getting
> what I think are good decode sets. Others here had said UO-11 gives
> garbage decodes.
>
> The last couple days I have gotten true garbage, a snippet here:
> --------------------------------------------------------
> 0pA}4VRX 4CKIp(zhp#W13
> z R<#`{M|4C     2Gr%xa5,RtCX`Xa\:#X{
> <("!"i(TpB?B$B7(4="BzF<("ai)5H)0L$0\C/~HPT,  $"b}EE=0"lw` L`V
> A-.7Pq\E54,xX|/ab(+F! ^88       (a`h"i!B @, #%\95!!_C$[P`dD &4 XhQHV3&
> )FPj(
> rPA4-`}BH!}0PF!/B-.H9)GP0jSDd rI"-<er  HbP
> 9fQyMb3\@`1_`TEBfS(!YhyC&a at 9Dt%|&8N5U0A.N7TX"@k82!|`FF at PtT!ed at dL tr12^I
> $#xP"VvIBJ$
> --------------------------------------------------------------
>
> So this morning I started fiddling around with the Mode-Settings Charset
> as-well-as Invert.
> I walked thru the available Charsets in UISS. Then I toggled Invert for
> each.
>
> Finally when I got back to Ascii-7 and inverted, it all worked/decoded.
>
> -------------------------------------------------------------------------------
> 000000010001020002030003040004050005060006070007080008090009
> 100001110000120003130002140005150004160007170006180009190008
> 20000221000322000023000124000625000726000427000528000A29000B
> 30000331000232000133000034000735000636000537000438000B39000A
> 40000441000542000643000744000045000146000247000348000C49000D
> 50000551000452000753000654000155000056000357000258000D59000C
> 60800E615FC1620105633341644402651E0C66200267000168000E69000F
> UOSAT-2           1408060015554
>
> 000000010001020002030003040004050005060006070007080008090009
> 100001110000120003130002140005150004160007170006180009190008
> 20000221000322000023000124000625000726000427000528000A29000B
> 30000331000232000133000034000735000636000537000438000B39000A
> 40000441000542000643000744000045000146000247000348000C49000D
> 50000551000452000753000654000155000056000357000258000D59000C
> 60800E615FC1620105633341644402651E0C66200267000168000E69000F
> UOSAT-2           1408060015559
>
> --------------------------------------------------------------------------------
>
> I am certain the Mode-Settings were the same from begin with garbage
> decodes to end when I returned them to original settings.
>
> go figure.
> 73,
> --
> Bob KD7YZ
> http://www.qrz.com/db/kd7yz
> AMSAT LM#901
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-- 
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