TM  1-1520-240-10 3-1-2            Table  3-1-1.   Communications/Navigation Equipment FACILITY DESIGNA- TION USE LOCATION INTERPHONE C-6533/ARC INTERCOMMUNICATIONS BETWEEN CREWMEMBERS AND RADIO CON- TROL THREE INTERPHONE CON- TROLS ON CONSOLE, THREE INTERPHONE CON- TROLS IN CABIN UHF RADIO AN/ARC-164 TWO-WAY UHF-AM COMMUNICATIONS CONTROL ON CONSOLE (INCLUDES R/T) VHF AM/FM RADIO AN/ARC-186 TWO-WAY VHF AM/FM COMMUNICA- TIONS CONTROL ON CONSOLE (INCLUDES R/T) VOICE SECURITY EQUIPMENT TSEC/KY-58 TWO-WAY CLEAR OR SECURE VOICE COMMUNICATION FOR NO. 1 VHF/FM RADIO CONTROL ON CONSOLE TSEC/KY-75 COMSEC CONTROL ON CONSOLE (IF INSTALLED) TSEC/KY-100 SECURE VOICE AND DATA COMMU- NICATION. OPERATIONAL WITH NAR- ROW AND WIDE BAND RADIOS (HF, VHF, UHF, SATCOM) CONTROL ON CONSOLE (IF INSTALLED) VHF NAVIGATION AND INSTRUMENT LANDING SYSTEM AN/ARN-123 PROVIDES VOR BEARINGS AND COURSE INFORMATION, ILS LOCALIZ- ER, GLIDE SLOPE, AND MARKER BEA- CON INDICATIONS CONTROL ON CANTED CONSOLE DIRECTION FIND- ER SET AN/ARN-89 AUTOMATIC OR MANUAL DIRECTION FINDING AND HOMING CONTROL ON CANTED CONSOLE GYROMAGNETIC COMPASS SET AN/ASN-43 PROVIDES HEADING INFORMATION IN FREE GYRO OR MAGNETIC MODES CONTROL ON OVERHEAD SWITCH PANEL DOPPLER NAVIGA- TION SET AN/ASN-128 PROVIDES WORLDWIDE NAVIGATION CAPABILITY WITHOUT USE OF GROUND FACILITIES CONTROL ON CANTED CONSOLE DOPPLER GPS NAVIGATION SET AN/ASN-128B    PROVIDES WORLDWIDE NAVIGATION CAPABILITY WITHOUT USE OF GROUND FACILITIES CONTROL ON CANTED CONSOLE (INCLUDES DIS- PLAY) TRANSPONDER SYSTEM AN/APX-100 RADAR IDENTIFICATION AND TRACK- ING CONTROL ON CANTED CONSOLE HIGH FREQUENCY RADIO SET AN/ARC-220 LONG RANGE TWO-WAY COMMUNICA- TIONS WITH ALE AND ECCM CONTROL ON CONSOLE VHF-FM RADIO AN/ARC-201 TWO-WAY VHF-FM COMMUNICATIONS AND HOMING CONTROL ON CONSOLE