Satellite Recieved

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Feb 26 , 2014

At the local hackerspace tonight, I finally received a morse beacon from a satellite! Hooray! It was FO-29, an Amateur Radio satellite. You can find the wav file (22.05 kHz, mono 16 bit) I recorded of its CW beacon, on 435.795MHz here. The Morse is too fast for me to even translate it into dots and dashes! If you can keep up, please do let me know what it’s saying!

This:

<...._._.._..._.__._.....___._...>EI<......_.><ERR_15>L<......_..______...>
<ERR_32><ERR_32><.............._____.............>E<ERR_32>IHSIII<ERR_6>
IIIT<......_.><ERR_9> I<ERR_7><ERR_9><ERR_22><ERR_14>IF <.._....>C
<_..._._...._._.><_........._..>H ENCN<.....__.><___._._>
<.__.._._......_........__>GEER<...._..><....._>
<......_..__....._...............>B<ERR_32><ERR_18><ERR_32>E<ERR_11>5I
<ERR_7>5I<ERR_6><......_>EB IH <__._...._._.><_._..___.>
<.__..._...._......>D<.._..._._._..__...._.__.._......><ERR_32><ERR_19>
<ERR_32><ERR_29><ERR_21><ERR_32>EHIII EEOÜ<__.._.._><........_.....>
<.___.....__><_._._><..____....._._.__....._.._.>I
<.......__.......................>

is what multimon-ng makes of it. with similar output from fldigi. Next time I’ll set my filters a bit wider, or work out a better method of changing frequencies to keep up with the doppler shift.

To record the wav file, I used gqrx on my debian laptop, with a fc0012 + rtl2832u rtl-sdr dongle, then converted to mono at 22.05 kHz

My thanks go to devdsp for holding the laptop and getting bitten by mosquitos while I pointed the antenna!

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