F E AT U R E S MODEL NO. 100D1788 Connects R/T to 4 Antennas (Upper, Lower, ADF or Satcom. ADF Overide with Key Interlock Prevents Transmission into the ADF Port HDI 4 Port Antenna Selector Failsafe Mode Connects R/T to Lower Antenna in the Event of a Power Loss Auto Mode Cycles Between Upper and Lower Antenna Using Solid State Relay Saver Circuitry for Reliability Key Function with Memory Automatically Selects the Antenna on which the Last Signal was Received BIT Port for Functionality Test in Aircraft. Available on Separate SMA Connector or J1 Control Connector UPPER ANT LOWER ANT SATCOM ANT UHF/DF ANT J4 J5 TP1 CONNECTOR,SMA FEMALE (WITH CHAIN-HELD DUST COVER) J2 .28 MOUNTING SURFACES 4.00 .63 .50 .19 J3 SOLID STATE SWITCH U/O AUTO SEARCH MODE .48 TYP .50 1.44 2.625 K1 S1 .38 .55 TP1 J4 J5 J6 J3 J2 1.63 J1 2.00 TO SOLID STATE SWITCH U/O AUTO SEARCH RECEIVE MODE 3.00 MAX .56 J1 2.85 3.85 4.85 5.25 TO ELECTRO-MECHANICAL SWITCH U/O TRANSMIT MODE OR MANUAL OVER-RIDE MODE K3 K4 LOGIC/MEMORY SWITCH DRIVER J6 .196 DIA THRU 4 HOLES R/T SHOWN IN AUTO CYCLE MODE M3470W14-15P (MIL-C-26482) (Series 2) J2 THRU J6 TNC FEMALE PER MIL-C-39012 .53 .75 1.71 1.21 GUARANTEED PERFORM ANCE .09 PART IDENTIFICATION & SER NO. ON FARSIDE .xx = .02 .xxx = .010 Parameter Min Typ Max Units Operating Frequency DC Current Insertion Loss Isolation VSWR Impedance Switching Speed RF Power Operate 225 Operating Temperature -54 Weight DA I C O In d u s t r i e s 400 150 0.8 30 MHz mA dB dB Conditions At +28 VDC Supply 1.35/1 50 +25 5 100 500 +71 18.2 OHMS mSec W Average W Peak °C Intermittent @ +95°C OZ Rev. E / Iss. 1