diff --git a/IO.cpp b/IO.cpp
index 3ef9499..1e7e182 100644
--- a/IO.cpp
+++ b/IO.cpp
@@ -220,6 +220,7 @@ void IO::setDecode(bool dcd)
 /// <summary>
 /// Helper to set the modem air interface state.
 /// </summary>
+/// <param name="modemState"></param>
 void IO::setMode(DVM_STATE modemState)
 {
     DVM_STATE relativeState = modemState;
diff --git a/SerialPort.cpp b/SerialPort.cpp
index 6123320..a1336a8 100644
--- a/SerialPort.cpp
+++ b/SerialPort.cpp
@@ -429,7 +429,7 @@ DVM_STATE SerialPort::calRelativeState(DVM_STATE state)
 {
     if (isCalState(state)) {
         if (state == STATE_DMR_DMO_CAL_1K || state == STATE_DMR_CAL_1K ||
-            state == STATE_DMR_LF_CAL || state == STATE_DMR_CAL || state == STATE_NXDN_CAL ||
+            state == STATE_DMR_LF_CAL || state == STATE_DMR_CAL ||
             state == STATE_RSSI_CAL || state == STATE_INT_CAL) {
             return STATE_DMR;
         } else if (state == STATE_P25_CAL_1K || state == STATE_P25_LF_CAL ||