diff --git a/src/modules/CC1101/CC1101.cpp b/src/modules/CC1101/CC1101.cpp
index 73006578..57835377 100644
--- a/src/modules/CC1101/CC1101.cpp
+++ b/src/modules/CC1101/CC1101.cpp
@@ -424,11 +424,13 @@ int16_t CC1101::readData(uint8_t* data, size_t len) {
 
 int16_t CC1101::setFrequency(float freq) {
   // check allowed frequency range
-  if(!(((freq > 300.0) && (freq < 348.0)) ||
-       ((freq > 387.0) && (freq < 464.0)) ||
-       ((freq > 779.0) && (freq < 928.0)))) {
+  #if RADIOLIB_CHECK_PARAMS
+  if(!(((freq >= 300.0) && (freq <= 348.0)) ||
+       ((freq >= 387.0) && (freq <= 464.0)) ||
+       ((freq >= 779.0) && (freq <= 928.0)))) {
     return(RADIOLIB_ERR_INVALID_FREQUENCY);
   }
+  #endif
 
   // set mode to standby
   SPIsendCommand(RADIOLIB_CC1101_CMD_IDLE);