On 04/10/2020 11:22 AM, Phan Anh wrote:
Hi Marcus,
Thanks so much for your quick response. Actually, I got the strongest
frequency already and it is now at the output of an "Add Const" block
in GNURadio.
I wonder how can I use such number (frequency number e.g. 151 MHz) as
the center frequency for a "UHD Sink" or "Osmocom Sink" block? (on the
same flowgraph in GNURadio Companion). The procedure should be:
Step 1: FFT + Arithmetic --> Obtain the strongest frequency Fs [I did
it already]
Step 2: Transmit a cosine signal (via UHD or Osmocom) using the
strongest frequency obtained in step 1 [I am asking about this]
Again, I really appreciate your help.
Best,
Anh
The UHD sink has a message port, which would allow you to send a message
to change the frequency.
https://www.gnuradio.org/doc/doxygen/page_uhd.html
I'd have the block that determines the appropriate frequency send a
message to the UHD sink block to change the frequency.
