F E AT U R E S Connects R/T to 2 Antennas (Upper or Lower) Auto Mode Cycles Between Upper and Lower Antenna Key Function with Memory Automatically Selects the Antenna on Which the Last Signal was Received Failsafe Mode Connects R/T to Lower Antenna in the Event of a Power Loss BIT Port for Functionality Test in Aircraft HDI MODEL NO. 100D0988 2 Port Antenna Selector WIRE LOCK PART IDENTIFICATION 5.50 5.00 4.50 .25 .50 .38 MIN DIA. (4 PLACES) .250 0.13 1.06 .38 TPI TEST POINT JACK J1 UPPER ANT LOWER ANT J3 J2 1.75 1.50 J3 2.00 J4 J2 .209 DIA THRU (4 PLACES) .38 1.75 3.75 LOGIC CONNECTOR, TNC FEMALE 3 PLACES J3 1.11 .72 KEYWAY (REF) J2 J4 .59 .41 0.09 ±.02 J1 J4 R/T 1.25 MAX TP1 (FARSIDE) CONNECTOR, 13 PIN MS27478Y-10D-13P .xx = .02 .xxx = .010 GUARANTEED PERFORMANCE Parameter DC Operating Temperature -54 Weight DA I C O In d u s t r i e s Min Typ Max Units Operating Frequency DC Current Isolation Insertion Loss VSWR Impedance Switching Speed RF Power Operate 400 150 40 0.5 1.25/1 50 +25 5 100 500 +71 9 MHz mA dB dB Conditions At +28 VDC Supply OHMS mSec W Average W Peak °C Intermittent @ +95°C OZ Rev. N/D / Iss. 1