Crystal Receiver Fundamental Calculator

Calculate the crystal frequency you need for that repeater or packet conversion project, or see what frequency that xtal you have on hand will give you!  Change the default values by entering your own.  To calculate for TX crystals, enter "0" in the I.F. box.
 

Enter Values in MHz Receive Freq IF Freq Multiplier L.O. Injection Frequency (Low) Xtal Freq Low Side LO Xtal Freq High Side LO

Enter Values in MHz Xtal Frequency Multiplier IF Freq L.O. Injection Frequency Receive Freq Low Side LO Receive Freq High Side LO