diff --git a/src/modules/nRF24/nRF24.cpp b/src/modules/nRF24/nRF24.cpp
index 3a91862d..732fc20b 100644
--- a/src/modules/nRF24/nRF24.cpp
+++ b/src/modules/nRF24/nRF24.cpp
@@ -230,14 +230,9 @@ int16_t nRF24::setFrequency(int16_t freq) {
     return(ERR_INVALID_FREQUENCY);
   }
 
-  // set mode to standby
-  int16_t state = standby();
-  RADIOLIB_ASSERT(state);
-
   // set frequency
   uint8_t freqRaw = freq - 2400;
-  state = _mod->SPIsetRegValue(NRF24_REG_RF_CH, freqRaw, 6, 0);
-  return(state);
+  return _mod->SPIsetRegValue(NRF24_REG_RF_CH, freqRaw, 6, 0);
 }
 
 int16_t nRF24::setDataRate(int16_t dataRate) {
@@ -332,6 +327,7 @@ int16_t nRF24::setTransmitPipe(uint8_t* addr) {
 
   // set Rx pipe 0 address (for ACK)
   _mod->SPIwriteRegisterBurst(NRF24_REG_RX_ADDR_P0, addr, _addrWidth);
+  state |= _mod->SPIsetRegValue(NRF24_REG_EN_RXADDR, NRF24_P0_ON, 0, 0);
 
   return(state);
 }
@@ -423,6 +419,10 @@ int16_t nRF24::getStatus(uint8_t mask) {
   return(_mod->SPIgetRegValue(NRF24_REG_STATUS) & mask);
 }
 
+bool nRF24::isCarrierDetected() {
+  return(_mod->SPIgetRegValue(NRF24_REG_RPD, 0,0)) == 1;
+}
+
 int16_t nRF24::setFrequencyDeviation(float freqDev) {
   // nRF24 is unable to set frequency deviation
   // this method is implemented only for PhysicalLayer compatibility
@@ -438,6 +438,13 @@ size_t nRF24::getPacketLength(bool update) {
 }
 
 int16_t nRF24::setCrcFiltering(bool crcOn) {
+  // Auto Ack needs to be disabled in order to disable CRC.
+  if (!crcOn) {
+    int16_t status = setAutoAck(false);
+    RADIOLIB_ASSERT(status)
+  }
+
+  // Disable CRC
   return _mod->SPIsetRegValue(NRF24_REG_CONFIG, crcOn ? NRF24_CRC_ON : NRF24_CRC_OFF, 3, 3);
 }
 
diff --git a/src/modules/nRF24/nRF24.h b/src/modules/nRF24/nRF24.h
index 6eafc342..70362dfe 100644
--- a/src/modules/nRF24/nRF24.h
+++ b/src/modules/nRF24/nRF24.h
@@ -127,7 +127,7 @@
 // NRF24_REG_STATUS
 #define NRF24_RX_DR                                   0b01000000  //  6     6     Rx data ready
 #define NRF24_TX_DS                                   0b00100000  //  5     5     Tx data sent
-#define NRF24_MAX_RT                                  0b00010000  //  4     4     maximum number of rentransmits reached (must be cleared to continue)
+#define NRF24_MAX_RT                                  0b00010000  //  4     4     maximum number of retransmits reached (must be cleared to continue)
 #define NRF24_RX_FIFO_EMPTY                           0b00001110  //  3     1     Rx FIFO is empty
 #define NRF24_RX_P_NO                                 0b00000000  //  3     1     number of data pipe that received data
 #define NRF24_TX_FIFO_FULL                            0b00000001  //  0     0     Tx FIFO is full
@@ -392,6 +392,13 @@ class nRF24: public PhysicalLayer {
     */
     int16_t getStatus(uint8_t mask = 0xFF);
 
+    /*!
+      \brief Checks if carrier was detected during last RX
+
+      \returns Whatever the carrier was above threshold.
+    */
+    bool isCarrierDetected();
+
     /*!
       \brief Dummy configuration method, to ensure PhysicalLayer compatibility.
 
@@ -438,7 +445,7 @@ class nRF24: public PhysicalLayer {
 
      \returns \ref status_codes
    */
-    int16_t setAutoAck(uint8_t pipeNum, bool autoAckOn = true);
+    int16_t setAutoAck(uint8_t pipeNum, bool autoAckOn);
 
     /*!
       \brief Dummy data shaping configuration method, to ensure PhysicalLayer compatibility.