NAV402APIFR NAV402AP 分析仪 Avionics radio test set for functional testing and calibration of MKR, VOR, LOC, G/S and COMM avionics. Synthesized signal generator for MKR, VOR, LOC, G/S and COMM systems with both FIXED and VAR frequency modes. 8.33 & 25 kHz COMM Channel Selection....