diff --git a/ubitx_si5351.cpp b/ubitx_si5351.cpp
index 3d378ab..8e900e0 100644
--- a/ubitx_si5351.cpp
+++ b/ubitx_si5351.cpp
@@ -49,7 +49,6 @@ uint32_t si5351bx_vcoa = (SI5351BX_XTAL*SI5351BX_MSA);  // 25mhzXtal calibrate
 uint8_t  si5351bx_rdiv = 0;             // 0-7, CLK pin sees fout/(2**rdiv)
 uint8_t  si5351bx_drive[3] = {3, 3, 3}; // 0=2ma 1=4ma 2=6ma 3=8ma for CLK 0,1,2
 uint8_t  si5351bx_clken = 0xFF;         // Private, all CLK output drivers off
-int32_t calibration = 0;
 
 void i2cWrite(uint8_t reg, uint8_t val) {   // write reg via i2c
   Wire.beginTransmission(SI5351BX_ADDR);
@@ -122,8 +121,7 @@ void si5351_set_calibration(int32_t cal){
 void initOscillators(){
   //initialize the SI5351
   si5351bx_init();
-  si5351bx_vcoa = (SI5351BX_XTAL * SI5351BX_MSA) + calibration; // apply the calibration correction factor
-  si5351bx_setfreq(0, globalSettings.usbCarrierFreq);
+  si5351_set_calibration(globalSettings.oscillatorCal);
 }