On Tue, Apr 19, 2011 at 2:03 PM, ish13 <address@hidden>
I am using DBPSK, but I am not receiving anything when I transmit my signal.
I attached the flow-graphs from the companion. Can someone look through it
and tell me if it is correct?
A few issues. First, don't set the multiplier to 32k as you will probably start to over drive the amplifier. I tend to keep this at a max of 15k.
More importantly, though, you're interpolation and decimations are set to 4k and 2k, respectively. You cannot use this large of a number. The max (if I recall) are 512 for interp and 256 for decim.
It's also helpful to start the transmitter and use the usrp_fft.py program to make sure you are receiving what you think you are receiving.