Re: [Discuss-gnuradio] GRC, Recording chunks of spectrum triggered on input signal level

2014-11-18 Thread Staffan Bruce
It works, many thanks! It seems like the changing of a variable in itself does not trigger an update of other variables (that are depending on the first one), but using a button or probe will trigger an update of the variables that are depending on them. Could this be something to consider for

Re: [Discuss-gnuradio] GRC, Recording chunks of spectrum triggered on input signal level

2014-11-16 Thread Staffan Bruce
Hello, After some weekend experimenting I believe I have most (most...) of it working. Sinking to a USB stick is not working so well by the way... One thing that is still a challenge is how to set the filename. You provided a very good way of timestamping, but when I try this, it only evaluates

[Discuss-gnuradio] GRC, Recording chunks of spectrum triggered on input signal level

2014-11-12 Thread Staffan Bruce
Hello, Being limited in my programming skills, I would very much like to do the following in Gnuradio Companion: * Sample an input stream (from RTL-SDR) * Generate a trigger signal based on the input stream * If a trigger criterion is met, save/sink the data stream for a preset time and give th