A310-200/300 COMM HF

HF

1.       HF  IS 2 TO 29.999MHZ WITH 1KHZ SPACING IN USB 400W AND AM 100W

2.       ANT IS NOTCH TYPE 650W IN RUDD COMP GROUNDED IN TOP END FOR DAMP THE LIGHTENING

3.       ONE ANT CONNECTED TO 2 COUPLER WITH 2 FEED LINE SO ANOTHER GND POINT NEEDED FOR IMPDANCE MATCHING

4.       ON 310-200 THERE’S ONE HF UNIT IN 95VU SUPP BY 115VAC NORM 3PHASE

5.       ON 310-300 WE HAVE 2 HF UNIT  HF#1 SUPP FROM EMR BUS

6.       FAILUIRE LITS ON HF UNIT:

LRU FAIL

KEY INTERLOCK: INDICATES A COUPLER FAIL

CONT INPUT: CONT PNL FAIL

LAMP TEST: ALSO SQL CIRCUIT TEST

7.       ANT TUNE INITIATES WHEN NEW FRQ SEL COUPLER GOES TO HOME POS (RECEPTION ONLY)

THEN AFTER KEYING COUPLER GOES TO DESIRED POS SENDING WILL AVTIVE

8.       FAULT ON MTP DET BY COUPLER:

CPLR: IF NOT TUNED IN 15 SEC OR PRESS <15.5PSI OR ARC DET

XMTR

 

9.       HF AND VHF KEYING SENT TO DFDR AS EVENTS AND ALL AUDIO REC BY CVR

10.   WHEN ONE HF TR TRANSMIT DISABLED THE OTHER ONE RECEPTION AND TRANSMISSION

11.   RF SENSE POTENTIOMETER ON CONT PNL IS FOR MAN SQUELTCH