Am 03.02.23 um 17:08 schrieb Marcus D. Leech:
On 03/02/2023 11:04, Fabian Schwartau wrote:
Hi George,
I don't know if the Frequency sink can do that for you, but I guess it
cannot.
One way is to mix the signal with a complex oscillation and a
multiplier with the oscillator running at the negative frequency you
wish to downshift the signal. Then low-pass filter and downsample the
signal. You can then feed that into the Frequency sink and also set
you oscillator frequency as offset frequency in the sink's settings.
Best,
Fabian
That's pretty-much what the frequency-xlating FIR filter/FFT filter
block is for...
Nice to know...
Also, sampling at 3GHz? Into an ordinary computer? Really?
Maybe he is just simulating stuff...
Am 03.02.23 um 16:52 schrieb George Edwards:
Dear GNURadio Community,
Let's say I build a GRC flowgraph operating at a sample rate of 3 GHz
and wish to display the spectrum over the fixed range of 1GHz +/-
4MHz, how do I get the QT GUI Frequency sink to plot over this range?
Thank you!
George
