diff --git a/src/modules/SX126x/SX126x.cpp b/src/modules/SX126x/SX126x.cpp
index 63b5ebc8..db491cdf 100644
--- a/src/modules/SX126x/SX126x.cpp
+++ b/src/modules/SX126x/SX126x.cpp
@@ -1130,6 +1130,13 @@ uint32_t SX126x::getTimeOnAir(size_t len) {
   }
 }
 
+uint8_t SX126x::getRSSIInst() {
+  uint8_t data[3] = {0, 0, 0};  // RssiInst, Status, RFU
+  SPIreadCommand(SX126X_CMD_GET_RSSI_INST, data, 3);
+
+  return data[0];
+}
+
 int16_t SX126x::implicitHeader(size_t len) {
   return(setHeaderType(SX126X_LORA_HEADER_IMPLICIT, len));
 }
diff --git a/src/modules/SX126x/SX126x.h b/src/modules/SX126x/SX126x.h
index 46b510f8..b0c50b79 100644
--- a/src/modules/SX126x/SX126x.h
+++ b/src/modules/SX126x/SX126x.h
@@ -806,6 +806,13 @@ class SX126x: public PhysicalLayer {
    */
    uint32_t getTimeOnAir(size_t len);
 
+   /*!
+     \brief Get instantaneous RSSI value in FSK mode. Can be used for LBT implementation, checking for interference before transmitting.
+
+     \returns Instantaneous RSSI value in (-2)*dBm
+   */
+   uint8_t getRSSIInst();
+
    /*!
      \brief Set implicit header mode for future reception/transmission.