diff --git a/src/modules/RF69/RF69.cpp b/src/modules/RF69/RF69.cpp
index 5544ad5d..260962a5 100644
--- a/src/modules/RF69/RF69.cpp
+++ b/src/modules/RF69/RF69.cpp
@@ -566,9 +566,9 @@ int16_t RF69::setBitRate(float br) {
   setMode(RADIOLIB_RF69_STANDBY);
 
   // set bit rate
-  uint16_t bitRate = 32000 / br;
-  int16_t state = this->mod->SPIsetRegValue(RADIOLIB_RF69_REG_BITRATE_MSB, (bitRate & 0xFF00) >> 8, 7, 0);
-  state |= this->mod->SPIsetRegValue(RADIOLIB_RF69_REG_BITRATE_LSB, bitRate & 0x00FF, 7, 0);
+  uint16_t bitRateRaw = 32000 / br;
+  int16_t state = this->mod->SPIsetRegValue(RADIOLIB_RF69_REG_BITRATE_MSB, (bitRateRaw & 0xFF00) >> 8, 7, 0);
+  state |= this->mod->SPIsetRegValue(RADIOLIB_RF69_REG_BITRATE_LSB, bitRateRaw & 0x00FF, 7, 0);
   if(state == RADIOLIB_ERR_NONE) {
     this->bitRate = br;
   }
diff --git a/src/modules/RF69/RF69.h b/src/modules/RF69/RF69.h
index 40b78076..7d77ef66 100644
--- a/src/modules/RF69/RF69.h
+++ b/src/modules/RF69/RF69.h
@@ -488,7 +488,7 @@ class RF69: public PhysicalLayer {
       \brief Default constructor.
       \param module Instance of Module that will be used to communicate with the radio.
     */
-    RF69(Module* module);
+    RF69(Module* module); // cppcheck-suppress noExplicitConstructor
 
     // basic methods
 
@@ -538,7 +538,7 @@ class RF69: public PhysicalLayer {
       \brief Sets the module to sleep mode.
       \returns \ref status_codes
     */
-    int16_t sleep();
+    int16_t sleep() override;
 
     /*!
       \brief Sets the module to standby mode.
@@ -619,23 +619,23 @@ class RF69: public PhysicalLayer {
       \brief Sets interrupt service routine to call when a packet is received.
       \param func ISR to call.
     */
-    void setPacketReceivedAction(void (*func)(void));
+    void setPacketReceivedAction(void (*func)(void)) override;
 
     /*!
       \brief Clears interrupt service routine to call when a packet is received.
     */
-    void clearPacketReceivedAction();
+    void clearPacketReceivedAction() override;
 
     /*!
       \brief Sets interrupt service routine to call when a packet is sent.
       \param func ISR to call.
     */
-    void setPacketSentAction(void (*func)(void));
+    void setPacketSentAction(void (*func)(void)) override;
 
     /*!
       \brief Clears interrupt service routine to call when a packet is sent.
     */
-    void clearPacketSentAction();
+    void clearPacketSentAction() override;
 
     /*!
       \brief Set interrupt service routine function to call when FIFO is empty.
@@ -697,7 +697,7 @@ class RF69: public PhysicalLayer {
       \brief Interrupt-driven receive method. GDO0 will be activated when full packet is received.
       \returns \ref status_codes
     */
-    int16_t startReceive();
+    int16_t startReceive() override;
 
     /*!
       \brief Interrupt-driven receive method, implemented for compatibility with PhysicalLayer.
@@ -707,7 +707,7 @@ class RF69: public PhysicalLayer {
       \param len Ignored.
       \returns \ref status_codes
     */
-    int16_t startReceive(uint32_t timeout, uint32_t irqFlags, uint32_t irqMask, size_t len);
+    int16_t startReceive(uint32_t timeout, uint32_t irqFlags, uint32_t irqMask, size_t len) override;
 
     /*!
       \brief Reads data received after calling startReceive method. When the packet length is not known in advance,
@@ -727,7 +727,7 @@ class RF69: public PhysicalLayer {
       \param freq Carrier frequency to be set in MHz.
       \returns \ref status_codes
     */
-    int16_t setFrequency(float freq);
+    int16_t setFrequency(float freq) override;
 
     /*!
       \brief Gets carrier frequency.
@@ -741,7 +741,7 @@ class RF69: public PhysicalLayer {
       \param br Bit rate to be set in kbps.
       \returns \ref status_codes
     */
-    int16_t setBitRate(float br);
+    int16_t setBitRate(float br) override;
 
     /*!
       \brief Sets receiver bandwidth. Allowed values are 2.6, 3.1, 3.9, 5.2, 6.3, 7.8, 10.4, 12.5, 15.6,
@@ -944,7 +944,7 @@ class RF69: public PhysicalLayer {
       \brief Gets RSSI (Recorded Signal Strength Indicator) of the last received packet.
       \returns Last packet RSSI in dBm.
     */
-    float getRSSI();
+    float getRSSI() override;
 
     /*!
       \brief Sets the RSSI value above which the RSSI interrupt is signaled
@@ -963,7 +963,7 @@ class RF69: public PhysicalLayer {
       \brief Get one truly random byte from RSSI noise.
       \returns TRNG byte.
    */
-    uint8_t randomByte();
+    uint8_t randomByte() override;
 
     /*!
       \brief Read version SPI register. Should return RF69_CHIP_VERSION (0x24) if SX127x is connected and working.
@@ -976,13 +976,13 @@ class RF69: public PhysicalLayer {
       \brief Set interrupt service routine function to call when data bit is received in direct mode.
       \param func Pointer to interrupt service routine.
     */
-    void setDirectAction(void (*func)(void));
+    void setDirectAction(void (*func)(void)) override;
 
     /*!
       \brief Function to read and process data bit in direct reception mode.
       \param pin Pin on which to read.
     */
-    void readBit(uint32_t pin);
+    void readBit(uint32_t pin) override;
     #endif
 
     /*!
@@ -991,12 +991,12 @@ class RF69: public PhysicalLayer {
       \param value The value that indicates which function to place on that pin. See chip datasheet for details.
       \returns \ref status_codes
     */
-    int16_t setDIOMapping(uint32_t pin, uint32_t value);
+    int16_t setDIOMapping(uint32_t pin, uint32_t value) override;
 
 #if !RADIOLIB_GODMODE && !RADIOLIB_LOW_LEVEL
   protected:
 #endif
-    Module* getMod();
+    Module* getMod() override;
 
 #if !RADIOLIB_GODMODE
   protected:
diff --git a/src/modules/SX123x/SX1231.h b/src/modules/SX123x/SX1231.h
index 569a8403..6dc37357 100644
--- a/src/modules/SX123x/SX1231.h
+++ b/src/modules/SX123x/SX1231.h
@@ -96,7 +96,7 @@ class SX1231: public RF69  {
       \brief Default constructor.
       \param mod Instance of Module that will be used to communicate with the radio.
     */
-    SX1231(Module* mod);
+    SX1231(Module* mod); // cppcheck-suppress noExplicitConstructor
 
     /*!
       \brief Initialization method.
@@ -111,7 +111,7 @@ class SX1231: public RF69  {
     int16_t begin(float freq = 434.0, float br = 4.8, float freqDev = 5.0, float rxBw = 125.0, int8_t power = 10, uint8_t preambleLen = 16);
 
 #if !RADIOLIB_GODMODE
-  private:
+  protected:
 #endif
     uint8_t chipRevision = 0;
 };
diff --git a/src/modules/SX123x/SX1233.h b/src/modules/SX123x/SX1233.h
index 029b0cc2..bf9bb148 100644
--- a/src/modules/SX123x/SX1233.h
+++ b/src/modules/SX123x/SX1233.h
@@ -26,7 +26,7 @@ class SX1233: public SX1231  {
       \brief Default constructor.
       \param mod Instance of Module that will be used to communicate with the radio.
     */
-    SX1233(Module* mod);
+    SX1233(Module* mod); // cppcheck-suppress noExplicitConstructor
 
     /*!
       \brief Initialization method.
@@ -48,12 +48,12 @@ class SX1233: public SX1231  {
       \param br Bit rate to be set in kbps.
       \returns \ref status_codes
     */
-    int16_t setBitRate(float br);
+    int16_t setBitRate(float br) override;
 
 #if !RADIOLIB_GODMODE
   private:
 #endif
-    uint8_t chipRevision = 0;
+
 };
 
 #endif