Re: [Discuss-gnuradio] Fwd: Questions on rx_ofdm example in GR 3.7.1

[Martin Braun (CEL)]

On Wed, Nov 06, 2013 at 06:27:40PM -0500, Aditya Dhananjay wrote:
> I created an OFDM TX/RX flowgraph (mostly copying stuff out from the GNU Radio
> reference GRC implementation), where the TX goes out to a USRP UHD sink, and
> the RX reads from a USRP UHD source.
> 
> As long as the receive SNR is high enough, the problem does not show up.
> However, as I gradually reduce the RX gain, at some point, the entire thing
> crashes with the "Buffer too small for min_noutput_items" error.

Are you using a current version? This problem was caused by bit errors
creating incorrect, but validated headers. In the current header, we
have an 8 Bit CRC check, which is pretty unlikely to cause this.

MB

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