Re: Messages like 'OuOuOu' and 'uUuU'

On Thursday 18 September 2008 19:30:43 Paul M. wrote:

I really try to search the archives thoroughly and to look source code over
in detail before asking questions like this one, but perhaps I’ve
overlooked something. Anyhow, if someone can direct me where to look to
understand the messages that seem to arise from several of the gnuradio
example apps, I will appreciate it. Here are excerpts from a couple of
typical sessions using USRP with FLEX900 daughtercard. (I’ve chosen the
freq 903.45MHz, because it’s one of the channels on my cordless phone.):

http://www.google.com/search?q=gnuradio+uO
Second hit (USRP FAQ)

$ python usrp_siggen1.py -f903.45e6
Using TX d’board A: Flex 900 Tx MIMO B
uUuUuU

USRP Underrun - the USRP runs out of data

$ python gnuradiogui.py -RA -f903.45
uOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOuOu
O uOuO

USRP Overrun - samples from USRP dropped

Your computer is not fast enough for what you try (or you have some
background
process which blocks gnuradio from processing fast enough)

Stefan


Stefan Brüns / Bergstraße 21 / 52062 Aachen
mailto:lurch at gmx.li http://www.kawo1.rwth-aachen.de/~lurchi/
phone: +49 241 53809034 mobile: +49 151 50412019