ALL OF THE RADIOS USED FOR COMMUNICATION AND NAVIGATION MUST BE TYPE ACCEPTED AND APPROVED AD OR CERTIFIED THE ONLY LEGAL WW-II EQUIPMENT STILL LEGAL FOR USE ARE ADF AND MARKER BEACON 75MC RECEIVERS NO VHF GEAR MEETS THE NEW FREQUENCY SPACING. ALL HF IS SSB AND TIGHT FREQUENCY WITH SELCAL. NO ARC-38, 618 T-1-2-3 ONLY THE 618-T4 280,00O CHANNELS IIRC. HANK KN6DI