diff --git a/src/protocols/ExternalRadio/ExternalRadio.cpp b/src/protocols/ExternalRadio/ExternalRadio.cpp
index 212f8a15..48a7790c 100644
--- a/src/protocols/ExternalRadio/ExternalRadio.cpp
+++ b/src/protocols/ExternalRadio/ExternalRadio.cpp
@@ -1,20 +1,23 @@
 #include "ExternalRadio.h"
 
 #if defined(RADIOLIB_BUILD_ARDUINO)
-ExternalRadio::ExternalRadio(uint32_t pin) : PhysicalLayer(1, 0) {
+ExternalRadio::ExternalRadio(uint32_t pin) : PhysicalLayer() {
+  this->freqStep = 1;
   mod = new Module(RADIOLIB_NC, RADIOLIB_NC, RADIOLIB_NC, pin);
   mod->hal->pinMode(pin, mod->hal->GpioModeOutput);
   this->prevFrf = 0;
 }
 #endif
 
-ExternalRadio::ExternalRadio(RadioLibHal *hal, uint32_t pin) : PhysicalLayer(1, 0) {
+ExternalRadio::ExternalRadio(RadioLibHal *hal, uint32_t pin) : PhysicalLayer() {
+  this->freqStep = 1;
   mod = new Module(hal, RADIOLIB_NC, RADIOLIB_NC, RADIOLIB_NC, pin);
   mod->hal->pinMode(pin, mod->hal->GpioModeOutput);
   this->prevFrf = 0;
 }
 
-ExternalRadio::ExternalRadio(const ExternalRadio& ext) : PhysicalLayer(1, 0) {
+ExternalRadio::ExternalRadio(const ExternalRadio& ext) : PhysicalLayer() {
+  this->freqStep = 1;
   this->prevFrf = ext.prevFrf;
   if(ext.mod) {
     this->mod = new Module(ext.mod->hal, RADIOLIB_NC, RADIOLIB_NC, RADIOLIB_NC, ext.mod->getGpio());
diff --git a/src/protocols/FSK4/FSK4.cpp b/src/protocols/FSK4/FSK4.cpp
index 4eb9b7bf..b96362e2 100644
--- a/src/protocols/FSK4/FSK4.cpp
+++ b/src/protocols/FSK4/FSK4.cpp
@@ -34,7 +34,7 @@ int16_t FSK4Client::begin(float base, uint32_t shift, uint16_t rate) {
   }
 
   // calculate 24-bit frequency
-  baseFreq = (base * 1000000.0f) / phyLayer->getFreqStep();
+  baseFreq = (base * 1000000.0f) / phyLayer->freqStep;
 
   // configure for direct mode
   return(phyLayer->startDirect());
@@ -109,7 +109,7 @@ int16_t FSK4Client::standby() {
 
 int32_t FSK4Client::getRawShift(int32_t shift) {
   // calculate module carrier frequency resolution
-  int32_t step = round(phyLayer->getFreqStep());
+  int32_t step = round(phyLayer->freqStep);
 
   // check minimum shift value
   if(RADIOLIB_ABS(shift) < step / 2) {
diff --git a/src/protocols/Hellschreiber/Hellschreiber.cpp b/src/protocols/Hellschreiber/Hellschreiber.cpp
index 907aab7c..5e5d3c2b 100644
--- a/src/protocols/Hellschreiber/Hellschreiber.cpp
+++ b/src/protocols/Hellschreiber/Hellschreiber.cpp
@@ -21,7 +21,7 @@ HellClient::HellClient(AFSKClient* audio) {
 int16_t HellClient::begin(float base, float rate) {
   // calculate 24-bit frequency
   baseFreqHz = base;
-  baseFreq = (base * 1000000.0f) / phyLayer->getFreqStep();
+  baseFreq = (base * 1000000.0f) / phyLayer->freqStep;
 
   // calculate "pixel" duration
   pixelDuration = 1000000.0f/rate;
diff --git a/src/protocols/Morse/Morse.cpp b/src/protocols/Morse/Morse.cpp
index fbacc824..b5de2741 100644
--- a/src/protocols/Morse/Morse.cpp
+++ b/src/protocols/Morse/Morse.cpp
@@ -23,7 +23,7 @@ MorseClient::MorseClient(AFSKClient* audio) {
 int16_t MorseClient::begin(float base, uint8_t speed) {
   // calculate 24-bit frequency
   baseFreqHz = base;
-  baseFreq = (base * 1000000.0f) / phyLayer->getFreqStep();
+  baseFreq = (base * 1000000.0f) / phyLayer->freqStep;
 
   // calculate tone period for decoding
   basePeriod = (1000000.0f/base)/2.0f;
diff --git a/src/protocols/Pager/Pager.cpp b/src/protocols/Pager/Pager.cpp
index 905778ed..e4615a51 100644
--- a/src/protocols/Pager/Pager.cpp
+++ b/src/protocols/Pager/Pager.cpp
@@ -39,10 +39,10 @@ int16_t PagerClient::begin(float base, uint16_t speed, bool invert, uint16_t shi
 
   // calculate 24-bit frequency
   baseFreq = base;
-  baseFreqRaw = (baseFreq * 1000000.0f) / phyLayer->getFreqStep();
+  baseFreqRaw = (baseFreq * 1000000.0f) / phyLayer->freqStep;
 
   // calculate module carrier frequency resolution
-  uint16_t step = round(phyLayer->getFreqStep());
+  uint16_t step = round(phyLayer->freqStep);
 
   // calculate raw frequency shift
   shiftFreqHz = shift;
diff --git a/src/protocols/PhysicalLayer/PhysicalLayer.cpp b/src/protocols/PhysicalLayer/PhysicalLayer.cpp
index 3b7d870a..b2e61d7d 100644
--- a/src/protocols/PhysicalLayer/PhysicalLayer.cpp
+++ b/src/protocols/PhysicalLayer/PhysicalLayer.cpp
@@ -2,9 +2,7 @@
 
 #include <string.h>
 
-PhysicalLayer::PhysicalLayer(float step, size_t maxLen) {
-  this->freqStep = step;
-  this->maxPacketLength = maxLen;
+PhysicalLayer::PhysicalLayer() {
   #if !RADIOLIB_EXCLUDE_DIRECT_RECEIVE
   this->bufferBitPos = 0;
   this->bufferWritePos = 0;
@@ -294,10 +292,6 @@ int16_t PhysicalLayer::checkDataRate(DataRate_t dr) {
   return(RADIOLIB_ERR_UNSUPPORTED);
 }
 
-float PhysicalLayer::getFreqStep() const {
-  return(this->freqStep);
-}
-
 size_t PhysicalLayer::getPacketLength(bool update) {
   (void)update;
   return(0);
diff --git a/src/protocols/PhysicalLayer/PhysicalLayer.h b/src/protocols/PhysicalLayer/PhysicalLayer.h
index 3d785b6d..8cb32a0d 100644
--- a/src/protocols/PhysicalLayer/PhysicalLayer.h
+++ b/src/protocols/PhysicalLayer/PhysicalLayer.h
@@ -216,14 +216,18 @@ enum RadioModeType_t {
 class PhysicalLayer {
   public:
 
+    /*! \brief  Frequency step of the synthesizer in Hz. */
+    float freqStep;
+
+    /*! \brief  Maximum length of packet that can be received by the module. */
+    size_t maxPacketLength;
+
     // constructor
 
     /*!
       \brief Default constructor.
-      \param step Frequency step of the synthesizer in Hz.
-      \param maxLen Maximum length of packet that can be received by the module.
     */
-    PhysicalLayer(float step, size_t maxLen);
+    PhysicalLayer();
 
     // basic methods
 
@@ -475,12 +479,6 @@ class PhysicalLayer {
     */
     virtual int16_t checkDataRate(DataRate_t dr);
 
-    /*!
-      \brief Gets the module frequency step size that was set in constructor.
-      \returns Synthesizer frequency step size in Hz.
-    */
-    float getFreqStep() const;
-
     /*!
       \brief Query modem for the packet length of received payload. Must be implemented in module class.
       \param update Update received packet length. Will return cached value when set to false.
@@ -778,8 +776,6 @@ class PhysicalLayer {
 #if !RADIOLIB_GODMODE
   private:
 #endif
-    float freqStep;
-    size_t maxPacketLength;
 
     #if !RADIOLIB_EXCLUDE_DIRECT_RECEIVE
     uint8_t bufferBitPos = 0;
diff --git a/src/protocols/RTTY/RTTY.cpp b/src/protocols/RTTY/RTTY.cpp
index aceddbe8..61fe7cdf 100644
--- a/src/protocols/RTTY/RTTY.cpp
+++ b/src/protocols/RTTY/RTTY.cpp
@@ -31,7 +31,7 @@ int16_t RTTYClient::begin(float base, uint32_t shift, uint16_t rate, uint8_t enc
   bitDuration = (RadioLibTime_t)1000000/rate;
 
   // calculate module carrier frequency resolution
-  uint32_t step = round(phyLayer->getFreqStep());
+  uint32_t step = round(phyLayer->freqStep);
 
   // check minimum shift value
   if(shift < step / 2) {
@@ -46,7 +46,7 @@ int16_t RTTYClient::begin(float base, uint32_t shift, uint16_t rate, uint8_t enc
   }
 
   // calculate 24-bit frequency
-  baseFreq = (base * 1000000.0f) / phyLayer->getFreqStep();
+  baseFreq = (base * 1000000.0f) / phyLayer->freqStep;
 
   // configure for direct mode
   return(phyLayer->startDirect());
diff --git a/src/protocols/SSTV/SSTV.cpp b/src/protocols/SSTV/SSTV.cpp
index b4df4252..397dc80b 100644
--- a/src/protocols/SSTV/SSTV.cpp
+++ b/src/protocols/SSTV/SSTV.cpp
@@ -219,7 +219,7 @@ int16_t SSTVClient::begin(float base, const SSTVMode_t& mode) {
   txMode = mode;
 
   // calculate 24-bit frequency
-  baseFreq = (base * 1000000.0f) / phyLayer->getFreqStep();
+  baseFreq = (base * 1000000.0f) / phyLayer->freqStep;
 
   // configure for direct mode
   return(phyLayer->startDirect());
@@ -365,10 +365,10 @@ void SSTVClient::tone(float freq, RadioLibTime_t len) {
   if(audioClient != nullptr) {
     audioClient->tone(freq, false);
   } else {
-    phyLayer->transmitDirect(baseFreq + (freq / phyLayer->getFreqStep()));
+    phyLayer->transmitDirect(baseFreq + (freq / phyLayer->freqStep));
   }
   #else
-  phyLayer->transmitDirect(baseFreq + (freq / phyLayer->getFreqStep()));
+  phyLayer->transmitDirect(baseFreq + (freq / phyLayer->freqStep));
   #endif
   mod->waitForMicroseconds(start, len);
 }