Hello list,
I have a graph consisting of a modulator mixed with a signal source, and
a USRP sink.
I have it configured with a *sampling rate* of 720KHz.
When I run it, UHD fires the following warning (and transmission seems
fine).
The requested interpolation is odd; the user should exp
On 08/01/2013 08:16 AM, embyte wrote:
Hello list,
I have a graph consisting of a modulator mixed with a signal source,
and a USRP sink.
I have it configured with a *sampling rate* of 720KHz.
When I run it, UHD fires the following warning (and transmission seems
fine).
The requested in
Hey Marcus, thanks for answering.
> (1) 720Khz is not an exact integer fraction of 64MHz (the sampling rate
> of the device)--so it rounded
>
> (2) It's warning you that you'll get a "humped" frequency response with
> more rolloff than you'd like, due to the rounded-down sample rate
>req
How wide is your signal?
Then find the nearest sample rate > your_bandwidth that satisfies the desired outcome that the computed
interpolation rate (64.0e6 / desired_rate) is an even number.
If the signal has artefacts that "spill" outside the required sample rate, then, yet, filter it first.
Dear Marcus,
> How wide is your signal?
My signal is 25 KHz wide, centered at 25 KHz. (I mix the baseband signal
with a sin function at 25 KHz)
Then find the nearest sample rate > your_bandwidth that satisfies the
desired outcome that the computed
interpolation rate (64.0e6 / desired_rat
