Codec2 first flew on LilacSat1 - you can find some details at https://svn.code.sf.net/p/freetel/code/misc/lilacsat1/README.txt and http://lilacsat.hit.edu.cn/wp/
73's Sam VK2GPL On Thu, 17 Jan 2019 at 08:27, cshearer <[email protected]> wrote: > Hello, > Starting plans of a cube sat project and have been contemplating > the use of this codec method (instead of other possible options) for the > project and not sure if this has been yet done or what the thoughts > would be on the use of this codec vs other methods as I want to > incorporate both digital voice and analog voice options. Initial > thoughts are to use DV codec2 method for possible greater benefits for > both better RF & audio qualities vs analog FM for a cross banded voice > repeater as a part of the satellites mission. The implementation would > be via on board modem to transmit the digital modulation using an MCU > for the direct modulating of the down-link from the received analog > up-link input. > > Possible mode configurations would be: > Mode 1 = Up-link Analog FM / Down-link DV Narrow band (Modulated > directly onboard satellite via MCU hardware modem) > Mode 2 = Up-link DV Narrow-band / Down-link DV Narrow-band (Direct pass > through of digital data signal, no reprocessing of signal) > Mode 3 = Up-link Analog FM / Down-link Analog FM > > These configuration modes would allow real time in flight mission > testing / comparison of the DV codec2 vs analog in 2 different > configurations) > > Would like to know thoughts and would appreciate any points of > discussions for this application. > > > Thank you, > NE3KO > > > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >
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