* noise floor lower bound now clamped to -120

Scott Powell · Scott Powell · commit 9bcab0949e5c · 2025-06-05T14:04:33.000+10:00
diff --git a/src/helpers/RadioLibWrappers.cpp b/src/helpers/RadioLibWrappers.cpp
@@ -63,6 +63,9 @@ void RadioLibWrapper::loop() {
     }
   } else if (_num_floor_samples >= NUM_NOISE_FLOOR_SAMPLES && _floor_sample_sum != 0) {
     _noise_floor = _floor_sample_sum / NUM_NOISE_FLOOR_SAMPLES;
+    if (_noise_floor < -120) {
+      _noise_floor = -120;    // clamp to lower bound of -120dBi
+    }
     _floor_sample_sum = 0;
 
     MESH_DEBUG_PRINTLN("RadioLibWrapper: noise_floor = %d", (int)_noise_floor);

Original file line number	Diff line number	Diff line change
`@@ -63,6 +63,9 @@ void RadioLibWrapper::loop() {`
`63`	`63`	`}`
`64`	`64`	`} else if (_num_floor_samples >= NUM_NOISE_FLOOR_SAMPLES && _floor_sample_sum != 0) {`
`65`	`65`	`_noise_floor = _floor_sample_sum / NUM_NOISE_FLOOR_SAMPLES;`
	`66`	`+ if (_noise_floor < -120) {`
	`67`	`+ _noise_floor = -120; // clamp to lower bound of -120dBi`
	`68`	`+ }`
`66`	`69`	`_floor_sample_sum = 0;`
`67`	`70`
`68`	`71`	`MESH_DEBUG_PRINTLN("RadioLibWrapper: noise_floor = %d", (int)_noise_floor);`