AGC does not get stuck in high gain if low signal. AGC is now default.

lib/src/phy/rf/rf_imp.c

@@ -41,13 +41,13 @@ int rf_get_available_devices(char **devnames, int max_strlen) {
 
 double srslte_rf_set_rx_gain_th(srslte_rf_t *rf, double gain)
 {
-  if (gain > rf->new_rx_gain + 2 || gain < rf->new_rx_gain - 2) {
+  if (gain > rf->cur_rx_gain + 2 || gain < rf->cur_rx_gain - 2){
     pthread_mutex_lock(&rf->mutex);
     rf->new_rx_gain = gain; 
     pthread_cond_signal(&rf->cond);
     pthread_mutex_unlock(&rf->mutex);
   }
-  return gain; 
+  return rf->cur_rx_gain;
 }
 
 void srslte_rf_set_tx_rx_gain_offset(srslte_rf_t *rf, double offset) {
@@ -65,8 +65,9 @@ static void* thread_gain_fcn(void *h) {
       pthread_cond_wait(&rf->cond, &rf->mutex);
     }
     if (rf->new_rx_gain != rf->cur_rx_gain) {
-      rf->cur_rx_gain = rf->new_rx_gain; 
-      srslte_rf_set_rx_gain(h, rf->cur_rx_gain);
+      srslte_rf_set_rx_gain(h, rf->new_rx_gain);
+      rf->cur_rx_gain = srslte_rf_get_rx_gain(h);
+      rf->new_rx_gain = rf->cur_rx_gain;
     }
     if (rf->tx_gain_same_rx) {
       printf("setting also tx\n");

srsue/ue.conf.example

@@ -28,7 +28,7 @@
 dl_earfcn = 3400
 freq_offset = 0
 tx_gain = 80
-rx_gain = 40
+#rx_gain = 40
 
 #nof_rx_ant = 1
 #device_name = auto