Hack RF One - Burst Transmissions

[Roland Schwarz]

Trying to use burst transmission with a HackRF I discovered a somewhat 
unexpected behaviour:

Only if the the total length of a burst is exactly 2^17 samples, the 
burst goes out well. If the length is smaller it looks like the HackRF 
driver is buffering the data and only on the next burst when the buffer 
fills up sufficiently HF is eventually generated.

In effect, when using any smaller size than 2^17 samples per burst the 
burst gets distorted severely.

In simulation mode, i.e. using throttling and time sink one cannot 
observe this behaviour, since the pauses between the burst are simply 
not visible. (Of course.)

Has anyone else discovered this behaviour? Are there any recipes for a 
work-around / best practice? Would it be possible to "fix" the driver or 
is this something one has to live with?

Thank you for consideration.

Roland


--
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  _  _  | Roland Schwarz
 |_)(_  |
 | \__) | mailto:roland.schwarz@blackspace.at
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