Re add

keywords.txt

@@ -438,3 +438,4 @@ RADIOLIB_ERR_A_FCNT_DOWN_INVALID	LITERAL1
 RADIOLIB_ERR_DATA_RATE_INVALID	LITERAL1
 RADIOLIB_ERR_DWELL_TIME_EXCEEDED LITERAL1
 RADIOLIB_ERR_CHECKSUM_MISMATCH	LITERAL1
+RADIOLIB_LORAWAN_NO_DOWNLINK	LITERAL1

src/modules/CC1101/CC1101.cpp

@@ -492,9 +492,9 @@ int16_t CC1101::setRxBandwidth(float rxBw) {
 int16_t CC1101::autoSetRxBandwidth() {
     // Uncertainty ~ +/- 40ppm for a cheap CC1101
     // Uncertainty * 2 for both transmitter and receiver
-    float uncertainty = (this->frequency) * 40 * 2);
+    float uncertainty = ((this->frequency) * 40 * 2);
     uncertainty = (uncertainty/1000); //Since bitrate is in kBit
-    float minbw = (this->bitRate) + uncertainty);
+    float minbw = ((this->bitRate) + uncertainty);
     
     int possibles[16] = {58, 68, 81, 102, 116, 135, 162, 203, 232, 270, 325, 406, 464, 541, 650, 812};