RE: [Discuss-gnuradio] ATSC demod tips

[Ben Green]

Wuest Brandon-WTVR47 wrote:
> 
>  
>> I got a few underruns during the "usrp_rx_cfile".  
>> About 10 in 10 seconds.  The raw data file is 446 meg.
> 
> Underruns are bad.  
> 
> Try capturing the data to a ram disk instead of your hard drive if you
> do not have a faster hard drive setup available (i.e. RAID).  I used the
> ATSC demodulator a few months back and was never able to successfully
> store that data down to my hard drive, so I allocated a 512 MB ramdisk
> and used that which worked great.
> 
I am having the same issue. When using a ramdisk I get no usrp overruns but
still the output file is empty. When putting the output of each py file in
its own file, I found btl-fsd.py outputs nothing. Are there any obvious
reasons why this would be happening? Is there anything I can do to narrow
down the problem?
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