Re: [Discuss-gnuradio] Large Sample Spikes after Each Packet in tx_bursts Example

[Josh Blum]

> You can see the magnitude hovers over 30 which is good (noise hovers
> around 5). But, as you can see, there are two spikes with suppressed
> samples around it. These are exactly spaced 363 samples apart (this
> changes as I change the samples per buffer at the transmitter). Does
> anyone have an idea where this is coming from? I'm running out of
> ideas of where to look to figure out the problem. Any ideas of what I
> can do to remove it (even manually)?
> 
> Regards, Jason T.
> 

If you are seeing transients at the beginning of a burst, thats probably
the half band filters. They are implemented in block ram and dont clear
between bursts.

On the other hand, if they are at the end, it might actually be that
mini EOB packet. Its supposed to be a zero length packet but its
actually sending a single sample (value zero). If this is the case, you
might try setting EOB on the last packet actually with sample data.

-josh

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