[Discuss-gnuradio] Reading RSSI Values with GRC

[Naceur]

Hello GR list, 

I am intending to read RSSI values on a RX (USRP N210), 
I have found in the post of Marcus D. Leech in
https://www.ruby-forum.com/topic/1857766


10*LOG10(DECIMATE(SINGLE_POLE_IIR_FILTER(COMPLEX_TO_MAG**2(SIGNAL)))) 

Using GRC, I tried to implement that method of calculation as shown in the
attached figure, 

1/ Is the flowgraph correct, or is there any missing block (decimation ?) ? 
2/ Then, how can I read in human readable format (ASCII) the RSSI values
(expected to be in dBm) from the test_RSSI.txt file sink ? 
3/ Is there a way to command the duration of execution of a flowgraph within
GRC () ? 
4/ How can I format the test_RSSI.txt file sink to obtain single RSSI values
per line ?

<http://gnuradio.4.n7.nabble.com/file/n44750/25.png> 

Any explanations are welcome,   
Regards, 
Naceur



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