250000 MHz, the following command is sent from the computer to the transceiver: "FA14250000;" (Set command) To read the VFO-A frequency, the following command is sent from the computer to the transceiver: "FA;" (Read command) When the Read command above has been sent, the following command is returned to the computer: "FA14250000;" (Answer command) Alphabetical Commands A command consists of 2 alphabetical characters. You may use either lower or upper case characters. The commands available for this transceiver are listed in the "PC Control Command Tables" on the following pages. Terminator To signal the end of a command, it is necessary to use a semicolon (;). The digit where this special character must appear differs depending on the command used. FT-450 CAT OPERATION REFERENCE BOOK Page 2 CAT (COMPUTER AIDED TRANSCEIVER) OPERATION CONTROL COMMAND LIST COMMAND AC AG AI BD BI BP BS BU BY CH CN CO CS CT DA DN DS ED EU EX FA FB FS FT GT ID IF IS KM KP KR KS KY LK LM MC MD MG MK ML MR MS FUNCTION ANTENNA TUNER CONTROL AF GAIN AUTO INFORMATION BAND DOWN BREAK-IN MANUAL NOTCH BAND SELECT BAND UP BUSY CHANNEL UP/DOWN CTCSS NUMBER CONTOUR CW SPOT CTCSS DIMMER MIC DOWN DIMMER SWITCH ENCODER DOWN ENCODER UP MENU FREQUENCY VFO-A FREQUENCY VFO-B FAST STEP FUNCTION TX AGC FUNCTION IDENTIFICATION INFORMATION IF-SHIFT KEYER MEMORY KEY PITCH KEYER KEY SPEED CW KEYING LOCK LOAD MESSEGE MEMORY CHANNEL MODE MIC GAIN MODE KEY MONITOR LEVEL MEMORY READ METER SW SET READ ANS...