Re: [Discuss-gnuradio] N210 8-bit mode and WBX bandwidth

[Matt Ettus]

On 12/03/2010 05:22 PM, Blair Strang wrote:
> Hi all,
>
> Two related questions:
>
> 1) In the datasheet for the N210, the specifications state 50Mhz
> instantaneous bandwidth in 8-bit mode.  I was looking at
> otw_type.width in the UHD and I can't see an 8 bit mode there.  Is
> 8-bit mode implemented in the fpga/firmware/driver for N210?  If not,
> roughly how far ahead in the roadmap would it be?   I apologise if
> this is a FAQ.


We would like to do this in the first quarter next year, but I can't 
promise anything.  We would be more than happy to accept patches.



> 2) The WBX has a fixed filter; I can see in the UHD an indication it's
> fixed at 40Mhz.  Would it be hard to modify the daughterboard to
> provide 50Mhz of bandwidth?


This is not hard at all.  You would need to replace 8 inductors and 12 
capacitors.  I suggest using QUCS to design and simulate your filter.

Matt