user15630: I find a 2.4GHz scanner in this web . I want to do same thing in 433 Mhz with SI4463. But I fail to understand it's principle. Who can explain it ? Thanks.




user13432: 
I find a 2.4GHz scanner in this web . I want to do same thing in 433
  Mhz with SI4463. But I fail to understand it's principle. Who can
  explain it ?

The scanner you found loops through the channels looking for activity. The channels are defined by the NRF24L01. And activity is received signal within the channel above threshold (RSSI). For this device this is a single bit. 
Other devices define RSSI as the signal quality/level for the latest received package. This is the case for the SI4463. 
Cheers!

15630: <p>I find a 2.4GHz scanner in this <a href="https://arduino-info.wikispaces.com/Nrf24L01-Poor+Man%27s+2.4+GHz+Scanner" rel="nofollow noreferrer">web</a> . I want to do same thing in 433 Mhz with SI4463. But I fail to understand it's principle. Who can explain it ? Thanks.</p>

<blockquote>
  <p><a href="https://i.stack.imgur.com/1N6S9.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1N6S9.png" alt="enter image description here"></a></p>
</blockquote>
 13432: <blockquote>
  <p>I find a 2.4GHz scanner in this web . I want to do same thing in 433
  Mhz with SI4463. But I fail to understand it's principle. Who can
  explain it ?</p>
</blockquote>

<p>The scanner you found loops through the channels looking for activity. The channels are defined by the NRF24L01. And activity is received signal within the channel above threshold (RSSI). For this device this is a single bit. </p>

<p>Other devices define RSSI as the signal quality/level for the latest received package. This is the case for the SI4463. </p>

<p>Cheers!</p>
