On Thu, 25 Aug 2005, Martin Dvh wrote: > Hi Chuck, > >I'm expecting > > to get a 1Khz signal in one channel and 2Khz in another channel, > > but end up with the two getting mixed etc. > >Now if I disconnect the wire connect J19 to J48 ch1 & ch2 indeed flatline > as expected. > How do ch 3 & 4 look when you disconnect the wire connect J19 to J48. > > You only set the tx_freq for channel 0 > sink.set_tx_freq(0,5e6) > > You should also do > sink.set_tx_freq(1,5e6) > > This means you output frequencies of 5.001 Mhz and 5.002 MHz. >
Ok - I was assuming all DDC/DUC's were set to the same. When the other cable between J19 & 48 is removed the scope channels 3 & 4 flatline, just as expected. I did add sink.set_rx_freq(1,5e6) and get exactly the same results - which is interesting - even setting sink.set_rx_freq(1,0) has no effect at all - however sink.set_rx_freq(0,0) results in no signal, as expected, since we're sending at 0hz baseband and receiving at 5e6 DDC. So, if sink.set_rx_freq(1,freq) is working then the mux 0x00A8 isn't routing thru DUC 1. I'll just probe and try things and see what works. Thanks. --Chuck _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
