Forum: GNU Radio LFRX A:A and A:B as independent channels in GRC

Using just Gnu Radio Companion, is there a way to get the A and B inputs 
of an Ettus LFRX (or BasicRX) in an N210 as independent channels?

Specifying A:AB as the subdevice and using a Complex-to-Float might 
work, but I'm wondering if the complex rx chain in the FPGA would 
conflate what are otherwise independent signals.

-Marc

On 02/07/2013 05:25 PM, mepard wrote:
> Using just Gnu Radio Companion, is there a way to get the A and B
> inputs of an Ettus LFRX (or BasicRX) in an N210 as independent
> channels?
>
> Specifying A:AB as the subdevice and using a Complex-to-Float might
> work, but I'm wondering if the complex rx chain in the FPGA would
> conflate what are otherwise independent signals.
>

Try this:

Setup the source block for 2 channels.

Set the subdev/frontend spec to "A:A A:B"

This makes DSP0 get the data from dboardA (the only one there), and
frontend A, and DSP1 gets from frontendB.

-josh

On Feb 7, 2013, at 5:42 PM, Josh Blum <josh@ettus.com> wrote:

> frontend A, and DSP1 gets from frontendB.
Exactly what I had in mind. Thanks!

 -Marc