On 06/28/2011 06:29 PM, Marcus D. Leech wrote:
> On 06/28/2011 08:27 PM, Josh Blum wrote:
>> You should be able to re-adjust the digital frequency shift very
>> quickly, which can go +/- 32MHz. On USRP1, this is implemented in the
>> DAC (not the FPGA DSP). You can do this w/ tune_request_t in uhd, no
>> idea about libgnuradio-usrp
>>
>> -Josh
>>
>>
> This raises an interesting question--is "advanced" tune_request_t
> 'exposed' to GRC?   When I looked recently, it didn't look like it.
> 

Yes. But from grc, there isnt a convenience constructor and it can be
hard to fill out struct members. But you could make a module with a
function that produces the request struct from parameters (or just add
it to the gr-uhd swig __init__.py).

-Josh

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