0 0 INTERMEDIATE FREQUENCY CALIBRATION MODE (IF CAL) 1 1 BUILT-IN TEST EQUIPMENT DIGITAL (BITE DGT) 2 2 BUILT-IN TEST EQUIPMENT RADIO FREQUENCY (BITE RF) 3 3 PRESET TRACKING (PSET TRK) 4 4 PRESET LOOP OUT 5 5 ACQUISITION 6 6 TRACKING 7 7 MISSING VALUE