What I am attempting to do is build a transmitter and receiver unit for what the BBC is using for sending broadcast information in association with their AM broadcasts. This is called Amplitude Modulation System Signalling (AMSS). I would like to be a bit more generic than the BBC standards (allow for dynamic bit rates, allowing unmodulated an carrier, etc.). Does anybody know if this has been done using GNURadio? Is there any potential for the community to want a module to perform this task if I implement one?
Thank you very much, Michael Berman On Thu, Oct 10, 2013 at 11:13 AM, Michael Berman <mrberma...@gmail.com>wrote: > I am attempting to transmit asynchronous packets in a precise manor using > time tags, and at the same time transmit an unmodulated carrier while there > are no packets being sent. I am considering disconnecting the USRP sink > from the packet path and connecting it to a signal source, however there > are questions of timing involved with knowing when to do this > reconnection. This design is to digitally phase modulate the carrier of an > AM signal and therefore cannot have gaps in the carrier signal. I am > wondering how this all would work with time tagged data and the unmodulated > carrier, or would these two processes interfere with one another? Also, if > it could work, does anybody have any suggestions as to how it should be > implemented? > > > Thank you in advance for any assistance, > > Michael Berman >
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