[Discuss-gnuradio] Re: USRP1 RX and TX chain delays

[Jamin Chan]

Jesper M. Kristensen wrote:
> Hello
> 
> Allow me to ask whether someone knows about the delay of the RX and TX 
> DSP
> chains from the input of a LFRX daughterboard to the output of the DSP 
> chain
> i.e input to the RX buffer and vice versa in the TX chain?
> I'm interested in the delay at a decimation factor of 256 and at an
> interpolation factor of 512 respectively.
> 
> kind regards
> 
> Jesper Kristensen
> Research Assistant
> Aalborg University, Department of Electronic Systems,
> Technology Platforms Section
> Frederik Bajers Vej 7A DK-9220 Aalborg � 
> Denmark

im using rfx400 boards, from rx to tx at the RF connectors ive measured 
about 50ms of delay.  decimating at 256, interpolating at 512, seems to 
be about the same no matter how many taps on my filter or even without 
filter
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