An interesting question about the log_rx_power option in receive_path.py file

Hello, everyone!

I found an interesting option in the receive_path.py file under the
directory: gnuradio-examples/python/digital. I think asserting that
option is aimed to record the received signal power and store the data
into a file, but in my opinion, it is storing whatever it has received
into that file. In other words, no matter no matter whether there is
packet over the air, it is always storing and storing, am I right? If it
is as what I thought, that file is meaningless (I even tried to open
that file using vim, but all of contents in that file are illegible
characters) and we could not use that file to calculate the received
signal strength, it that right? I am not an experienced guy about
gnuradio, and I would like to listen to all kinds of advices. Thank you!

Bill