With TX software version 1.0.34 or greater, the frequency calibration setting can be changed by using a PC connected to the front panel "RTDS PORT" or it can be accomplished manually by simply turning the small multimeter "SELECT" knob so that the "MULTIMETER" LCD displays the "Cal. frequency" menu. Then depress and hold the “FUNCTION MODE” button and turn the "SELECT" knob until the desired transmitter calibration frequency is obtained. To save the setting, release the “FUNCTION MODE” button. Note: This does not effect the actual frequency output of the transmitter. The exciter frequency will need to be changed independently of this setting.
Please see the FM 10S20S and FMi 7031405 Smartcore Board SW Upgrade Application Guide for more detailed information.