Re: [Discuss-gnuradio] usrp_siggen.py underruns

[Dominik Auras]

Hi!

> That won't help.  The problem is that the gaussian RNG is really slow.
> You'll need to figure out how to make it faster.
I am sorry. This was an example and I hoped that the RNG is fast enough. 
Actually, I have observed this behavior with my transmitter. As I 
described, it doesn't send with 8 MHz bandwidth on USRP1. Before we 
received the new USRP2s, I have thought that this is a problem of my 
application. Even though with a nullsink, I have measured a throughput 
in front of the nullsink of more than 30 MSamples per second.

Now with the USRP2, my transmitter is streaming continuously, sending at 
12.5 Mhz bandwidth. It keeps up with this rate. There was no change in 
the transmitter, except for using the USRP2.

Conclusion: my code can send with at least 12.5 complex MSamples per 
second (equal to 12.5 MHz bandwidth), but using USRP1, I can't send with 
8 Mhz?

Best regards
Dominik