On Fri, 2006-10-27 at 19:47 -0400, Charles Swiger wrote: > On Fri, 2006-10-27 at 11:11 -0500, Meiners, Jason wrote: > > Has anyone benchmarked the ATSC encode function? Can this be done in > > real time? Decode is always harder to do than encode :) > > > > Actually, an HDTV transmitter function might fulfill a niche that > couldn't be easily implemented otherwise. A pchdtv HD-5500 is > $130, but these can't be cheap: > > http://www.broadcast.harris.com/product_portfolio/product_details.asp?sku=WWWAPEX > >
Actually it looks pretty good - the randomizer, Reed-Solomon encoder, interleaver and Trellis Encoder already work in 2.x, all we need to run in 0.9 is Field Sync Mux, Symbol Mapper and Weaver Mod head/tail - drive a basic-TX and suitable analog upconverter and you have a low power hi-def tv station ;) Will an RFX400 pass a 6MHz wide signal? (AD834X mixer) Here's the output of 0.9 atsc_tx re-sending some mpeg captured from a local station (via a disk file, not realtime yet): http://webpages.charter.net/cswiger/photos/atsc_tx_09.jpg _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
