Antenna fiddling

Good Evening.
What are these graphs and how do I get them. (the ones pictured are nicked from someone elses post)

I’m currently fiddling with antenna’s. I made a dipole tuned for 131.500Mhz to decode ACARS, used it for piaware and it gave super results. My Nooelec 1090 mhz antenna in the same position is utter rubbish so tomorrow I’m going to make a spider as in the easy antenna thread. I’d like to know what I’m aiming for and what statistic to maximize.
That’s my results so far, any comments?


Hi Jim!
You can install these “Performance Graphs” on your Pi by method given in this thread:

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