I have a couple of questions this time.
I have a setup in which I transmit gmsk packets from a tx node which
are then received successfuly at an rx node (both nodes are USRP N200
radios and are being operated by GRC). However, when I turn off the
cordic at two nodes by putting this line in uhd usrp sink at tx node and
in uhd usrp source at rx node, I do not receive any packets at all at rx
I have verified (by means of get_center_frequency() method) that the two
nodes in this case are set to the same center frequency which is 914.285
MHz, so, there is no center freq mismatch between tx and rx nodes. In
this case, I see some underflows at tx node and if I put a scope at rx
node to see the raw received samples, then I see that the samples are
not being received continuously (i.e., I see received gmsk samples for a
few seconds, then noise samples for next few seconds and so on) even
though the tx node is sending packets back-to-back.
Previously, the frequency of DUC/DDC cordic, target frequency, actual
frequency used to be printed out while running any flow-graph involving
usrp sink/source but it is not the case anymore. What is the easiest way
to print all this info while within GRC?