diff --git a/src/modules/SX123x/SX1233.cpp b/src/modules/SX123x/SX1233.cpp
index 6a481046..c13d5e39 100644
--- a/src/modules/SX123x/SX1233.cpp
+++ b/src/modules/SX123x/SX1233.cpp
@@ -17,7 +17,7 @@ int16_t SX1233::begin(float freq, float br, float freqDev, float rxBw, int8_t po
   bool flagFound = false;
   while((i < 10) && !flagFound) {
     int16_t version = getChipVersion();
-    if((version == 0x21) || (version == 0x22) || (version == 0x23)) {
+    if((version == RADIOLIB_SX123X_CHIP_REVISION_2_A) || (version == RADIOLIB_SX123X_CHIP_REVISION_2_B) || (version == RADIOLIB_SX123X_CHIP_REVISION_2_C)) {
       flagFound = true;
       this->chipRevision = version;
     } else {
diff --git a/src/modules/SX123x/SX1233.h b/src/modules/SX123x/SX1233.h
index b8f078ef..c6f11d3f 100644
--- a/src/modules/SX123x/SX1233.h
+++ b/src/modules/SX123x/SX1233.h
@@ -43,6 +43,8 @@ class SX1233: public SX1231  {
     /*!
       \brief Sets bit rate. Allowed values range from 0.5 to 300.0 kbps.
       SX1233 also allows 500 kbps and 600 kbps operation.
+      NOTE: For 500 kbps rate, the receiver frequency should be offset by 50 kHz from the transmitter.
+            For 600 kbps rate, the receiver frequency should be offset by 40 kHz from the transmitter.
       \param br Bit rate to be set in kbps.
       \returns \ref status_codes
     */