Re: [Discuss-gnuradio] Packet via USB

[Eric Blossom]

On Wed, Jan 09, 2008 at 03:57:58PM +0100, address@hidden wrote:
> Hi, thanks you for your reply.
> Tx side it's all ok.
> The problem is on Rx side,
> Using Oscilloscope with usrp_fft.py or saving samples
> on disk i noticed all packet are transmitted. This is true using high value of
> interpolation/decimation factor (very low bit rate).
> What do you think about this?

> It's like "sweep time" of a digital spectrum analyzer, where a very short 
> burst
> isn't recognized?

Yes.

> Or the problem is on the read routine where all URB buffer's
> point at the same output buffer, especially in presence of a "weight"
> demodulation block ?

No, we get all the packets/samples.

You may be looking for a "burst detector" block.

Eric