从 GNU Radio Companion (3.7.11) 中获取数据的问题

Question

First, I have to say that I'm a noobie posting at this site.

I have written this post because I'm trying to detect signals in the 2.4GHz band. For that, I'm using GNU Radio Companion with this result that worked for me:

But I want to get the information to a python script to work with it.

I was looking for something that can help me to make that possible and I found this tutorial: http://recolog.blogspot.com/2015/08/processing-data-out-of-gnuradio.html

I tried to replicated it but I have this problem:

I have been searching for hours and I found this problem is caused by the version of the GNU Radio (in my case, 3.7.11), but I can't install a previous version because it cause troubles between other packages that I need.

So the question is, How can I replicate the tutorial in my current version?

Answer 1

the red tipped arrow indicate that the data format on either ends (output of a block to input of a block) are incompatible for connection.

Possible solution

The easiest method is to use a file sink block in gnuradio-companion

The file sink block allows you to write into any format.

You can later take this file and analyse for detecting

Answer 2

take new pad sink block, change properties( lable=output, inputtype=message, vectorlength=2048 ) in the pad block without connecting to the message sink, after changing it connect the wire to message sink.

then your grc does not show any error.