The center frequency is configured with a variable in the OFDM_CONFIG structure.
It is the value 'centre' https://sourceforge.net/p/freetel/code/HEAD/tree/codec2-dev/src/ofdm_internal.h#l54 To get access to this variable, you would do this in ofdm_mod.c (or demod) https://sourceforge.net/p/freetel/code/HEAD/tree/codec2-dev/src/ofdm_mod.c#l104 for example: ofdm_config->centre = 800.0; The ofdm tx filter is off by default: https://sourceforge.net/p/freetel/code/HEAD/tree/codec2-dev/src/ofdm.c#l361 you can turn it on with the '--txbpf' option in ofdm_mod.c. This is just some quick notes. All of this would require some testing. You would have to design a new modem for a higher bit rate. It's not something you can configure on the fly. _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
