Yaesu FT-450 - CAT OPERATION REFERENCE BOOK Service manual

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
FT-450
CAT O PERATION
R EFERENCE B OOK

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
OVERVIEW
The CAT (Computer Aided Transceiver) System in the
FT-450 provides control of frequency, VFO, memory, and
other settings such as dual-channel memories and diver-
sity reception using an external personal computer. This
allows multiple control operations to be fully automated
as single mouse clicks or keystroke operations on the com-
puter keyboard.
The FT-450 has a built-in level converter, allowing di-
rect connection from the rear-panel CAT jack to the serial
port of your computer without the need of any external
boxes. You will need a serial cable for connection to the
RS-232C (serial or COM port) connector on your com-
puter. Purchase a standard serial cable (not the so-called
“null modem” type), ensuring it has the correct gender
and number of pins (some serial COM port connectors
use a 9-pin rather than 25-pin configuration). If your com-
puter uses a custom connector, you may have to construct
the cable. In this case, refer to the technical documenta-
tion supplied with your computer for correct data connec-
tion.
Vertex Standard does not produce CAT System operating
software due to the wide variety of personal computers
and operating systems in use today. However, the infor-
mation provided in this chapter explains the serial data
structure and opcodes used by the CAT system. This in-
formation, along with the short programming examples,
is intended to help you start writing programs on your
own. As you become more familiar with CAT operation,
you can customize programs later on for your operating
needs and discover the true operating potential of this sys-
tem.
Page 1
CAT JACK
PIN NO.
c
d
e
f
g
h
i
j
k
PIN NAME
N/A
SERIAL OUT
SERIAL IN
N/A
GND
N/A
RTS
CTS
N/A
FUNCTION
---
Outputs the Serial Data from the
transceiver to the computer.
Inputs the Serial Data from the
computer to the transceiver.
---
Signal Ground
---
When the computer is not ready
to receive data, this port goes “L”
to inhibit transmit data from the
transceiver.
When the transceiver is not ready
to receive data, this port goes “L”
to inhibit the transmit data from
the computer.
---
I/O
---
Output
Input
---
---
---
Input
Output
---
INPUT
DC 13.8V
22 A
ANT
GND
EXT
SPKR
CATLINEARTUNERDATA
COM
CAT
RS-232C “Straight” Cable

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
CONTROL COMMAND
A computer control command is composed of an alpha-
betical command, various parameters, and the terminator
that signals the end of the control command.
Example: Set the VFO-A frequency to 14.250000 MHz.
FA 14250000 ;
KKK
Command Parameter Terminator
There are three types of commands for the FT-450 as shown
below:
Set command: Set a particular condition
(to the FT-450)
Read command: Reads an answer
(from the FT-450)
Answer command: Transmits a condition
(from the FT-450)
For example, note the following in the case of the FA com-
mand (Set the VFO-A frequency):
To set the VFO-A frequency to 14.250000 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.
Page 2
Parameters
Parameters are used to specify information necessary to
implement the desired command.
The parameters to be used for each command are prede-
termined. The number of digits assigned to each param-
eter is also predetermined. Refer to the “Control Com-
mand List” and the “Control Command Tables” to con-
figure the appropriate parameters.
When configuring parameters, be careful not to make the
following mistakes.
For example, when correct parameter is “IS0+1000” (IF
SHIFT):
IS01000;
Not enough parameters specified (No direction (+)
given for the IF shift)
IS0+100;
Not enough digits (Only three frequency digits
given)
IS0_+_1000;
Unnecessary characters between parameters
IS0+10000;
Too many digits (Five frequency digits given)
Note: If a particular parameter is not applicable to the FT-
450, the parameter digits should be filled using any char-
acter except the ASCII control codes (00 to 1Fh) and the
terminator (;).
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
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
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
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
C OMMAND FUNCTION SET READ AI
O
O
O
O
O
O
O
O
X
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
X
X
O
O
O
O
O
O
O
O
O
O
O
O
O
X
O
C OMMAND FUNCTION SET READ AI
O
O
O
X
O
O
X
X
O
X
O
O
O
O
O
X
O
X
X
O
O
O
O
O
O
O
O
O
O
O
O
O
X
O
O
O
O
O
X
O
O
O
O
O
O
X
O
O
X
X
O
X
O
O
O
O
O
X
O
X
X
O
O
O
O
O
O
O
O
O
O
O
O
O
X
O
O
O
O
O
X
O
O
O
X
O
O
O
X
O
O
X
O
X
X
X
X
O
X
X
O
O
O
O
X
O
O
X
O
O
O
O
O
O
X
O
O
O
X
O
O
X
X
O
O
O
X
O
O
O
O
O
O
O
O
O
X
X
X
O
X
X
O
O
O
O
X
O
O
X
O
O
O
O
O
O
X
O
O
O
X
O
O
X
O
O
O
O
O
O
O
O
X
O
O
O
O
O
O
O
O
O
O
O
O
X
O
X
O
X
O
O
O
O
O
X
O
O
O
O
O
X
O
O
O
O
O
O
O
O
MEMORY WRITE
NARROW
NOISE BLANKER
NOISE REDUCTION
OPPOSITE BAND INFORMATION
OFFSET (REPEATER SHIFT)
PRE-AMP (IPO)
PLAY BACK
POWER CONTROL
POWER SWITH
QMB STORE
QMB RECALL
QUICK SPLIT
RF ATTENUATOR
CLAR CLEAR
CLAR DOWN
RF GAIN
RADIO INFORMATION
NOISE REDUCTION LEVEL
READ METER
RESET POWER ON
RADIO STATUS
CLAR
CLAR UP
SCAN
SEMI BREAK-IN DELAY TIME
WIDTH
S METER
SQUELCH LEVEL
STEP
SWAP VFO
TXW
TX SET
UNLOCK
MIC UP
VOX DELAY TIME
VOX GAIN
[V/M]KEY FUNCTION
VOICE
VFO SELECT
VFO TO VFO
VOX
MW
NA
NB
NR
OI
OS
PA
PB
PC
PS
QI
QR
QS
RA
RC
RD
RG
RI
RL
RM
RP
RS
RT
RU
SC
SD
SH
SM
SQ
ST
SV
TS
TX
UL
UP
VD
VG
VM
VR
VS
VV
VX
CONTROL COMMAND LIST
Page 3
ANS.
O
O
X
X
O
O
X
X
O
X
O
O
O
O
X
X
O
X
X
O
O
O
O
O
O
X
O
O
X
O
O
O
X
O
X
X
O
O
X
O
X
O
ANS.
X
O
O
O
O
O
O
O
O
O
X
X
X
O
X
X
O
O
O
O
X
O
O
X
O
O
O
O
O
O
X
O
O
O
X
O
O
X
O
O
O
O

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
BDBD
BDBD
BD BAND DOWN
Set 12345678910
BDP1 ;
Read 12345678910
Answer 12345678910
P1 0: VFO-A
1: VFO-B
CONTROL COMMAND TABLES
AA
AA
AGG
GG
GAF GAIN
Set 12345678910
AGP1 P2 P2 P2 ;
Read 12345678910
AGP1 ;
Answer 12345678910
AGP1 P2 P2 P2 ;
P1 0: Fixed
P2 000 - 255
AA
AA
ACC
CC
CANTENNA TUNER CONTROL
Set 12345678910
ACP1 P2 P3 ;
Read 12345678910
AC ;
Answer 12345678910
ACP1 P2 P3 ;
P1 0: Fixed P3 0: Tuner “OFF”
P2 0: Fixed 1: Tuner “ON”
2: Tuning Start
AIAI
AIAI
AI AUTO INFORMATION
Set 12345678910
AIP1 ;
Read 12345678910
AI ;
Answer 12345678910
AIP1 ;
P1 0: Auto Information “OFF”
1: Auto Information “ON”
This parameter is set to “0” (OFF) automatically when the transceiver is turned “OFF.”
Page 4
BIBI
BIBI
BI BREAK-IN
Set 12345678910
BIP1 ;
Read 12345678910
BI ;
Answer 12345678910
BIP1 ;
P1 0: Break-in “OFF”
1: Break-in “ON”
BSBS
BSBS
BS BAND SELECT
Set 12345678910
BSP1 P1 ;
Read 12345678910
Answer 12345678910
P1 00: 1.8 MHz 06: 18 MHz
01: 3.5 MHz 07: 21 MHz
02: Invalid 08: 24.5 MHz
03: 7 MHz 09: 28 MHz
04: 10 MHz 10: 50 MHz
05: 14 MHz 11: GEN
BB
BB
BUU
UU
UBAND UP
Set 12345678910
BUP1 ;
Read 12345678910
Answer 12345678910
P1 0: Fixed
BYBY
BYBY
BY BUSY
Set 12345678910
Read 12345678910
BY ;
Answer 12345678910
BYP1 P2 ;
P1 0: BUSY “OFF”
1: BUSY “ON”
P2 0: Fixed
BPBP
BPBP
BP MANUAL NOTCH
Set 12345678910
BPP1 P2 P3 P3 P3 ;
Read 12345678910
BPP1 P2 ;
Answer 12345678910
BPP1 P2 P3 P3 P3 ;
P1 0: Fixed
P2 0: Manual NOTCH “ON/OFF”
1: Manual NOTCH Position
P3 When P2=0
000: OFF
001: ON
When P2=1
001 - 199: NOTCH position move to left
200: NOTCH position move to center
201 - 400: NOTCH position move to right

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
CNCN
CNCN
CN CTCSS TONE FREQUENCY
Set 12345678910
CNP1 P2 P2 ;
Read 12345678910
CNP1 ;
Answer 12345678910
CNP1 P2 P2 ;
P1 0: Fixed
P2 00 - 49: Tone Frequency Number (See Table 1)
DD
DD
DAA
AA
ADIMMER
Set 12345678910
DAP1 P1 P2 P2 ;
Read 12345678910
DA ;
Answer 12345678910
DAP1 P1 P2 P2 ;
P1 00 - 04
P2 00: Fixed
DNDN
DNDN
DN MIC DWN
Set 12345678910
DN ;
Read 12345678910
Answer 12345678910
CTCT
CTCT
CT CTCSS
Set 12345678910
CTP1 P2 ;
Read 12345678910
CTP1 ;
Answer 12345678910
CTP1 P2 ;
P1 0: Fixed
P2 0: CTCSS “OFF”
1: CTCSS ENC/DEC “ON”
2: CTCSS ENC “ON”
CSCS
CSCS
CS CW SPOT
Set 12345678910
CSP1 ;
Read 12345678910
CS ;
Answer 12345678910
CSP1 ;
P1 0: OFF
1: ON
DSDS
DSDS
DS DIMMER SWITCH
Set 12345678910
DSP1 ;
Read 12345678910
DS ;
Answer 12345678910
DSP1 ;
P1 0: DIMMER “OFF”
1: DIMMER “ON”
CONTROL COMMAND TABLES
CHCH
CHCH
CH CHANNEL UP/DOWN
Set 12345678910
CHP1 ;
Read 12345678910
Answer 12345678910
P1 0: Memory Channel “UP”
1: Memory Channel “DOWN”
Page 5
TABLE 1
00
01
02
03
04
05
06
07
08
67.0 Hz
69.3 Hz
71.9 Hz
74.4 Hz
77.0 Hz
79.7 Hz
82.5 Hz
85.4 Hz
88.5 Hz
09
10
11
12
13
14
15
16
17
91.5 Hz
94.8 Hz
97.4 Hz
100.0 Hz
103.5 Hz
107.2 Hz
110.9 Hz
114.8 Hz
118.8 Hz
123.0 Hz
127.3 Hz
131.8 Hz
136.5 Hz
141.3 Hz
146.2 Hz
151.4 Hz
156.7 Hz
159.8 Hz
27
28
29
30
31
32
33
34
35
162.2 Hz
165.5 Hz
167.9 Hz
171.3 Hz
173.8 Hz
177.3 Hz
179.9 Hz
183.5 Hz
186.2 Hz
36
37
38
39
40
41
42
43
44
189.9 Hz
192.8 Hz
196.6 Hz
199.5 Hz
203.5 Hz
206.5 Hz
210.7 Hz
218.1 Hz
225.7 Hz
45
46
47
48
49
---
---
---
---
229.1 Hz
233.6 Hz
241.8 Hz
250.3 Hz
254.1 Hz
---
---
---
---
CTCSS TONE CHART
18
19
20
21
22
23
24
25
26
COCO
COCO
CO CONTOUR
Set 12345678910
COP1 P2 P3 P3 ;
Read 12345678910
COP1 P2 ;
Answer 12345678910
COP1 P2 P3 P3 ;
P1 0: Fixed
P2 0: CONTOUR “ON/OFF”
1: CONTOUR Frequency
P3 When P2=0,
-2: CONTOUR “ON” -12 dB
-1: CONTOUR “ON” -6 dB
00: CONTOUR “OFF”
+1: CONTOUR “ON” +6 dB
+2: CONTOUR “ON” +12 dB
When P2=1,
01 ~ 07: 250 Hz
08 ~ 13: 500 Hz
14 ~ 19: 1 kHz
20 ~ 25: 2 kHz
26 ~ 32: 4 kHz

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
CONTROL COMMAND TABLES
EDED
EDED
ED ENCODER DOWN
Set 12345678910
EDP1 P2 P2 ;
Read 12345678910
Answer 12345678910
P1 0:Fixed
P2 01-99: Steps
EUEU
EUEU
EU ENCODER UP
Set 12345678910
EUP1 P2 P2 ;
Read 12345678910
Answer 12345678910
P1 0:Fixed
P2 01-99: Steps
Page 6

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
Page 7
EXEX
EXEX
EX MENU
Set 12345678nn
**
EXP1 P1 P1 P2 P2 ~ P2 ;
Read 12345678910
EXP1 P1 P1 ;
Answer 12345678nn
**
EXP1 P1 P1 P2 P2 ~ P2 ;
P1 001-064 (MENU Number)
P2 Parameter (See Table 2)
CONTROL COMMAND TABLES
TABLE 2
FUNCTION
EXT MNU
AM & FMDIAL
APO TIME
BEACON TIME
BEACON TEXT
BEEP TONE
BEEPVOL
CAT RTS
CAT TIME OUT TIME
CATRATE
CLAR DIAL / SEL
CLOCK SHIFT
DISP CONTRAST
CW AUTO MODE
CW BFO
CW DELAY
CW KEY REVERSE
CW QSK
CW PADDLE
CWPITCH
CWSPEED
CW SIDE TONE
CW TRAINING
CW WEIGHT
DATA DISP
DATA MODE
Not Used
Not Used
DIAL STEP
DIG VOX
EMERGENCY
KEY HOLD TIME
LOCK MODE
M-TUNE
MEMORY GROUP
MEMORY TAG
MIC EQ
MIC GAIN
MIC AUTO SCAN
MY BAND
MY MODE
MIC-DOWN PG
MIC-FAST PG
MIC-UP PG
METER PEAK HOLD
PANEL’S CUSTOM SWITCH
QUICK SPLIT FREQ
RF POWER SET
REPEATER SHIFT DIRECTION
REPEATER SHIFT OFFSET
RTTY SHIFT
RTTY TONE
RTTY RX POLARITY
RTTY TX POLARITY
SCAN RESUME
SEL DIAL MODE
SQL TYPE
SQL/RF GAIN
STBY BEEP
TONE FREQ
TOT TIME
TUNER/ATAS
VOX DELAY
VOXGAIN
P1
001
002
003
004
005
006
007
008
009
010
011
012
013
014
015
016
017
018
019
020
021
022
023
024
025
026
027
028
029
030
031
032
033
034
035
036
037
038
039
040
041
042
043
044
045
046
047
048
049
050
051
052
053
054
055
056
057
058
059
060
061
062
063
064
P2
0: OFF 1: ON
0: DISABLE 1: ENABLE
00 (OFF) ~ 01 (hour) ~ 12 (hour)
000 (OFF) ~ 001 (sec) ~ 255 (sec)
- - -
0: 440 Hz 1: 880 Hz 2: 1760 Hz
000 (FIX 0) ~ 100 (FIX100) or 101 (LNK-50) ~ 151 (LNK0) ~ 201 (LNK+50)
0: DISABLE 1: ENABLE
0: 10 msec 1: 100 msec 2: 1000 msec 3: 3000 msec
1: 4800 bps 2: 9600 bps 3: 19200 bps 4: 38400 bps 5: DATA
0: DIAL 1: SEL
0: OFF 1: ON
01 ~ 24
0: OFF 1: ON
0: USB 1: LSB 2: AUTO
0000 (FULL) / 0030 (msec) ~ 3000 (msec)
0: NORMAL 1: REVERSE
0: 15 msec 1: 20 msec 2: 25 msec 3: 30 msec
0: KEY 1: MIC
00 - 02: 400 Hz 03 - 04: 500 Hz 05 - 06: 600 Hz 07 - 08: 700 Hz 09 - 15: 800 Hz
04 (wpm) ~ 60 (wpm)
000 (FIX 0) ~ 100 (FIX100) or 101 (LNK-50) ~ 151 (LNK0) ~ 201 (LNK+50)
0: N (Numeric Character Only) 1: A (Alphabet Character Only) 2: M (Mixed: Numeric and Alphabet Character)
25 (1:2.5) ~ 45 (1:4.5)
-300 (-3000 Hz) ~ +000 (0 Hz) ~ +300 (+3000 Hz)
0: RTTY 1: USER-L 2: USER-U
---
---
0: 1 Hz 1: 10 Hz 2: 20 Hz 3: 100 Hz 4: 200 Hz
000 (OFF) ~ 100
0: OFF 1: ON
0: 0.5 sec 1: 1.0 sec 2: 1.5 sec 3: 2.0 sec
0: FREQ 1: PANEL 2: ALL
0: OFF 1: ON
0: OFF 1: ON
0: TAG-OFF 1: TAG NAME
0 ~ 9
0: LOW 1: NOR 2: HIGH
0: OFF 1: ON
See Table 3
See Table 4
See Table 5
See Table 5
See Table 5
0: OFF 1: ON
See Table 5
-20 (kHz) ~ +00 (kHz) ~ +20 (kHz)
005 ~ 100
0: SIMPLEX 1: +SHIFT 2: - SHIFT
000 (0 MHz) ~ 999 (99.9 MHz)
1: 170 Hz 2: 200 Hz 3: 425 Hz 4: 850 Hz
1: 1275 Hz 2: 2125 Hz
0: NORMAL 1: REVERSE
0: NORMAL 1: REVERSE
00: BUSY 01 (TIME: 1 sec) ~ 10 (TIME: 10 sec)
0: CW Sidetone Level 1: CW KEYER Speed 2: 100KHz Step 3: 1MHz Step 4: MIC GAIN Set 5: RF Power Set
0: OFF 1: ENC 2: ENC DEC
0: SQL 1: RF GAIN
0: OFF 1: ON
See Table 6
00 (OFF) ~ 01 (minute) ~ 20 (minute)
0: ATAS 1: EXT ATU 2: INT ATU 3: INTRATU 4: F TRANS
01 (100 msec) ~ 30 (300 msec)
001 ~ 255

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
CONTROL COMMAND TABLES
P2 FUNCTION
01 MONI Activates the Monitor function.
02 N/A No Function.
03 P/B Activates the Digital Voice Recorder.
04 PLAY1 Send the CW message, which is memorized in BEACON TEXT 1.
05 PLAY2 Send the CW message, which is memorized in BEACON TEXT 2.
06 PLAY3 Send the CW message, which is memorized in BEACON TEXT 3.
07 QSPL Activates Quick Split Operation
08 SPOT Generates a CW Spot Tone when using CW mode.
09 SQLOFF Opens the noise squelch.
10 SWR Transmits a 10 watts carrier (CW mode) to measure the SWR ratio.
11 TXW Monitor the transmit frequency when Split Frequency operation is engaged.
12 VCC Display the DC supply voltage.
13 VOICE2 Announces the current S-meter reading, operating frequency (with resolution to the displayed 100 Hz digit), and operating mode.
14 VM1MONI Play back the voice message, which is memorized in Voice Memory 1.
15 VM1REC Store the voice message into Voice Memory 1.
16 VM1TX Send the voice message, which is memorized in Voice Memory 1.
17 VM2MONI Play back the voice message, which is memorized in Voice Memory 2.
18 VM2REC Store the voice message into Voice Memory 2.
19 VM2TX Send the voice message, which is memorized in Voice Memory 2.
20 DOWN Decreases the VFO frequency by one step or moves the memory channel to the next-lowest channel.
21 FAST Set to the same function as the front panel’s [FAST]button.
22 UP Increases the VFO frequency by one step or moves the memory channel to the next-highest channel.
23 DSP Set to the same function as the front panel’s [DSP]button.
24 ATT/IPO Set to the same function as the front panel’s [ATT/IPO]button.
25 NB Set to the same function as the front panel’s [NB]button.
26 AGC Set to the same function as the front panel’s [AGC]button.
27 MODEDN Set to the same function as the front panel’s [MODET]button.
28 MODEUP Set to the same function as the front panel’s [MODES]button.
29 DSP/SEL Set to the same function as the front panel’s [DSP/SEL]button.
30 KEYER Set to the same function as the front panel’s [KEYER]button.
31 CLAR Set to the same function as the front panel’s [CLAR]button.
32 BANDDN Set to the same function as the front panel’s [BANDT]button.
33 BANDUP Set to the same function as the front panel’s [BANDS]button.
34 A=B Set to the same function as the front panel’s [A=B]button.
35 A/B Set to the same function as the front panel’s [A/B]button.
36 LOCK Set to the same function as the front panel’s [LOCK]button.
37 TUNE Set to the same function as the front panel’s [TUNE]button.
38 VOICE Announce the current operating frequency (with resolution to the displayed 100 Hz digit)and operating mode.
39 MW Copies the current operating data from the VFO into the currently selected memory channel.
40 V/M Toggles frequency control between VFO and memory system.
41 HOME Recall the “Home” (favorite frequency)channel.
42 RCL Recall the QMB (Quick Memory Bank)memory.
43 VOX Activate the VOX (automatic voice-actuated transmitter switching)feature.
44 STO Copies operating data into QMB (Quick Memory Bank)Memory.
45 STEP Enables the setting of the frequency step of the [DSP/SEL]knob by the [DSP/SEL]knob.
46 SPLIT Activates split frequency operation between VFO-A and VFO-B.
47 PMS Engages Programmable Memory Scan (PMS).
48 SCAN Initiates the upward scanning of VFO frequencies or memory channels.
49 MENU Engage the “Menu” mode.
50 DIMMER Enables adjustment of the display dimmer level by the [DSP/SEL]knob.
51 MTR Change the meter function in the transmit mode.
TABLE 6
00
01
02
03
04
05
06
07
08
67.0 Hz
69.3 Hz
71.9 Hz
74.4 Hz
77.0 Hz
79.7 Hz
82.5 Hz
85.4 Hz
88.5 Hz
09
10
11
12
13
14
15
16
17
91.5 Hz
94.8 Hz
97.4 Hz
100.0 Hz
103.5 Hz
107.2 Hz
110.9 Hz
114.8 Hz
118.8 Hz
123.0 Hz
127.3 Hz
131.8 Hz
136.5 Hz
141.3 Hz
146.2 Hz
151.4 Hz
156.7 Hz
159.8 Hz
27
28
29
30
31
32
33
34
35
162.2 Hz
165.5 Hz
167.9 Hz
171.3 Hz
173.8 Hz
177.3 Hz
179.9 Hz
183.5 Hz
186.2 Hz
36
37
38
39
40
41
42
43
44
189.9 Hz
192.8 Hz
196.6 Hz
199.5 Hz
203.5 Hz
206.5 Hz
210.7 Hz
218.1 Hz
225.7 Hz
45
46
47
48
49
---
---
---
---
229.1 Hz
233.6 Hz
241.8 Hz
250.3 Hz
254.1 Hz
---
---
---
---
CTCSS TONE CHART
18
19
20
21
22
23
24
25
26
TABLE 5
Page 8
TABLE 3
P2
000
001
003
004
005
006
007
008
009
010
FUNCTION
1.8 MHz “OFF”
3.5 MHz “OFF”
7 MHz “OFF”
10 MHz “OFF”
14 MHz “OFF”
18 MHz “OFF”
21 MHz “OFF”
24.5 MHz “OFF”
28 MHz “OFF”
50 MHz “OFF”
MY BAND
P2
100
101
103
104
105
106
107
108
109
110
FUNCTION
1.8 MHz “ON”
3.5 MHz “ON”
7 MHz “ON”
10 MHz “ON”
14 MHz “ON”
18 MHz “ON”
21 MHz “ON”
24.5 MHz “ON”
28 MHz “ON”
50 MHz “ON”
P2
01
02
03
04
05
06
07
08
09
0A
0B
0C
FUNCTION
LSB “OFF”
USB “OFF”
CW “OFF”
FM “OFF”
AM “OFF”
DATA (RTTY-LSB) “OFF”
CW-R “OFF”
USER-L “OFF”
DATA (RTTY-USB) “OFF”
N.A.
FM-N “OFF”
USER-U “OFF”
MY MODE
P2
11
12
13
14
15
16
17
18
19
1A
1B
1C
FUNCTION
LSB “ON”
USB “ON”
CW “ON”
FM “ON”
AM “ON”
DATA (RTTY-LSB) “ON”
CW-R “ON”
USER-L “ON”
DATA (RTTY-USB) “ON”
N.A.
FM-N “ON”
USER-U “ON”
TABLE 4

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
FTFT
FTFT
FT FUNCTION TX
Set 12345678910
FTP1 ;
Read 12345678910
FT ;
Answer 12345678910
FTP1 ;
P1 0: Transmit the Displayed Band
1: Transmit the Opposite Band
FSFS
FSFS
FS FAST STEP
Set 12345678910
FSP1 ;
Read 12345678910
FS ;
Answer 12345678910
FSP1 ;
P1 0: FAST Key “OFF”
1: FAST Key “ON”
IDID
IDID
ID IDENTIFICATION
Set 12345678910
Read 12345678910
ID;
Answer 12345678910
IDP1 P1 P1 P1 ;
P1 0241 (Fixed value)
CONTROL COMMAND TABLES
FF
FF
FAA
AA
AFREQUENCY VFO-A
Set 12345678910
FAP1 P1 P1 P1 P1 P1 P1 P1
11 12 13 14 15 16 17 18 19 20
;
Read 12345678910
FA ;
Answer 12345678910
FAP1 P1 P1 P1 P1 P1 P1 P1
11 12 13 14 15 16 17 18 19 20
;
P1 30000 - 60000000 (Hz)
FBFB
FBFB
FB FREQUENCY VFO-B
Set 12345678910
FBP1 P1 P1 P1 P1 P1 P1 P1
11 12 13 14 15 16 17 18 19 20
;
Read 12345678910
FB ;
Answer 12345678910
FBP1 P1 P1 P1 P1 P1 P1 P1
11 12 13 14 15 16 17 18 19 20
;
P1 300000 - 60000000 (Hz)
Page 9
IFIF
IFIF
IF INFORMATION
Set 12345678910
Read 12345678910
IF;
Answer 12345678910
IFP1 P1 P1 P2 P2 P2 P2 P2
11 12 13 14 15 16 17 18 19 20
P2 P2 P2 P3 P3 P3 P3 P3 P4 P5
21 22 23 24 25 26 27 28 29 30
P6 P7 P8 P9 P9 P10 ;
P1 000-510 (Memory Channel) P2 VFO-A Frequency (Hz)
P3 Clarifier Direction +: Plus Shift, --: Minus Shift
Clarifier Offset: 0000 - 9999 (Hz)
P4 0: RX CLAR “OFF” 1: RX CLAR “ON”
P5 0: TX CLAR “OFF” 1: TX CLAR “ON”
P6 MODE 1: LSB 2: USB 3: CW 4: FM 5: AM 6: DATA (RTTY-LSB)
7: CW-R 8: USER-L 9: DATA (RTTY-USB)
B: FM-N C: USER-U
P7 0: VFO 1: Memory 2: Memory Tune 3: Quick Memory Bank (QMB)
P8 0: CTCSS “OFF” 1: CTCSS ENC/DEC 2: CTCSS ENC
P9 Tone Number (See Table 1)
P10 0: Simplex 1: Plus Shift 2: Minus Shift
GTGT
GTGT
GT AGC FUNCTION
Set 12345678910
GTP1 P2 ;
Read 12345678910
GTP1 ;
Answer 12345678910
GTP1 P2 ;
P1 0: Fixed P2 0: AGC “OFF”
1: AGC “FAST”
2: AGC “SLOW”
3: AGC “SLOW”
4: AGC “AUTO”

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
KSKS
KSKS
KS KEY SPEED
Set 12345678910
KSP1 P1 P1 ;
Read 12345678910
KS ;
Answer 12345678910
KSP1 P1 P1 ;
P1 004 - 060 (WPM)
KYKY
KYKY
KY CW KEYING
Set 12345678910
KYP1 ;
Read 12345678910
Answer 12345678910
P1 6: Beacon Text “1” Playback
7: Beacon Text “2” Playback
8: Beacon Text “3” Playback
LKLK
LKLK
LK LOCK
Set 12345678910
LKP1 ;
Read 12345678910
LK ;
Answer 12345678910
LKP1 ;
P1 0: DIAL Lock “OFF”
1: DIAL Lock “ON”
KRKR
KRKR
KR KEYER
Set 12345678910
KRP1 ;
Read 12345678910
KR ;
Answer 12345678910
KRP1 ;
P1 0: KEYER “OFF”
1: KEYER “ON”
Page 10
KMKM
KMKM
KM KEYER MEMORY
Set 1234567~43
**
KMP1 P2 P2 P2 P2 ~ P2 ;
Read 12345678910
KMP1 ;
Answer 1234567~43
**
KMP1 P2 P2 P2 P2 ~ P2 ;
P1 1 - 3 : Beacon Text Channel Number
P2 Message Characters (up to 40 characters)
CONTROL COMMAND TABLES
ISIS
ISIS
IS IF-SHIFT
Set 12345678910
ISP1 -/+ P2 P2 P2 P2 ;
Read 12345678910
ISP1 ;
Answer 12345678910
ISP1 -/+ P2 P2 P2 P2 ;
P1 0: Fixed
P2 0000 ~ 1000 (Hz)
MCMC
MCMC
MC MEMORY CHANNEL
Set 12345678910
MCP1 P1 P1 ;
Read 12345678910
MC ;
Answer 12345678910
MCP1 P1 P1 ;
P1 001 - 504: Memory Channel Number
001 - 500: Regular Memory Channel
501: P1L Channel
502: P1U Channel
503: P2L Channel
504: P2U Channel
KPKP
KPKP
KP KEY PITCH
Set 12345678910
KPP1 P1 ;
Read 12345678910
KP ;
Answer 12345678910
KPP1 P1 ;
P1 02: 400 Hz
04: 500 Hz
06: 600 Hz
08: 700 Hz
10: 800 Hz
LMLM
LMLM
LM LOAD MESSEGE
Set 12345678910
LMP1 P2 ;
Read 12345678910
LMP1 ;
Answer 12345678910
LMP1 P2 ;
P1 0: VOICE MEMORY
1: DIGITAL VOICE RECORDER
P2 When P1=0
0: VOICE MEMORY RECORDING STOP
1: VOICE MEMORY 1 RECORDING
2: VOICE MEMORY 2 RECORDING
When P1=1
0: DIGITAL VOICE RECORDER STOP
1: DIGITAL VOICE RECORDER START

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
MGMG
MGMG
MG MIC GAIN
Set 12345678910
MGP1 P1 P1 ;
Read 12345678910
MG ;
Answer 12345678910
MGP1 P1 P1 ;
P1 000 - 085: MIC GAIN “L”
086 - 170: MIC GAIN “M”
171 - 255: MIC GAIN “H”
CONTROL COMMAND TABLES
MDMD
MDMD
MD OPERATING MODE
Set 12345678910
MDP1 P2 ;
Read 12345678910
MDP1 ;
Answer 12345678910
MDP1 P2 ;
P1 0: Fixed
P2 MODE 1: LSB 2: USB 3: CW 4: FM 5: AM 6: DATA (RTTY-LSB)
7: CW-R 8: USER-L 9: DATA (RTTY-USB)
B: FM-N C: USER-U
Page 11
MLML
MLML
ML MONITOR LEVEL
Set 12345678910
MLP1 P2 P2 P2 ;
Read 12345678910
MLP1 ;
Answer 12345678910
MLP1 P2 P2 P2 ;
P1 0: Fixed
P2 000: MONITOR “OFF”
001: MONITOR “ON”
MRMR
MRMR
MR MEMORY CHANNEL READ
Set 12345678910
Read 12345678910
MRP1 P1 P1 ;
Answer 12345678910
MRP1 P1 P1 P2 P2 P2 P2 P2
11 12 13 14 15 16 17 18 19 20
P2 P2 P2 P3 P3 P3 P3 P3 P4 P5
21 22 23 24 25 26 27 28 29 30
P6 P7 P8 P9 P9 P10 ;
P1 Memory Channel Number P2 Memory Channel Frequency (Hz)
P3 Clarifier Direction +: Plus Shift, --: Minus Shift
Clarifier Offset: 0000 - 9999 (Hz)
P4 0: RX CLAR “OFF” 1: RX CLAR “ON”
P5 0: TX CLAR “OFF” 1: TX CLAR “ON”
P6 MODE 1: LSB 2: USB 3: CW 4: FM 5: AM 6: DATA (RTTY-LSB)
7: CW-R 8: USER-L 9: DATA (RTTY-USB)
B: FM-N C: USER-U
P7 0: VFO 1: Memory
P8 0: CTCSS “OFF” 1: CTCSS ENC/DEC 2: CTCSS ENC
P9: Tone Number (See Table 1)
P10 0: Simplex 1: Plus Shift 2: Minus Shift
MKMK
MKMK
MK MODE KEY
Set 12345678910
MKP1 ;
Read 12345678910
Answer 12345678910
P1 KEY 7: MODE UP
8: MODE DOWN
9: REVERSE (@CW MODE)
MWMW
MWMW
MW MEMORY CHANNEL WRITE
Set 12345678910
MWP1 P1 P1 P2 P2 P2 P2 P2
11 12 13 14 15 16 17 18 19 20
P2 P2 P2 P3 P3 P3 P3 P3 P4 P5
21 22 23 24 25 26 27 28 29 30
P6 P7 P8 P9 P9 P10 ;
Read 12345678910
Answer 12345678910
P1 Memory Channel Number P2 Memory Channel Frequency (Hz)
P3 Clarifier Direction +: Plus Shift, --: Minus Shift
Clarifier Offset: 0000 - 9999 (Hz)
P4 0: RX CLAR “OFF” 1: RX CLAR “ON”
P5 0: TX CLAR “OFF” 1: TX CLAR “ON”
P6 MODE 1: LSB 2: USB 3: CW 4: FM 5: AM 6: DATA (RTTY-LSB)
7: CW-R 8: USER-L 9: DATA (RTTY-USB)
B: FM-N C: USER-U
P7 0: Fixed
P8 0: CTCSS “OFF” 1: CTCSS ENC/DEC 2: CTCSS ENC
P9: Tone Number (See Table 1)
P10 0: Simplex 1: Plus Shift 2: Minus Shift
MSMS
MSMS
MS METER SW
Set 12345678910
MSP1 ;
Read 12345678910
MS ;
Answer 12345678910
MSP1 ;
P1 1: ALC
2: PO
3: SWR
NN
NN
NAA
AA
ANARROW
Set 12345678910
MAP1 P2 ;
Read 12345678910
NAP1 ;
Answer 12345678910
NAP1 P2 ;
P1 0: Fixed
P2 0: Bandwidth Middeum
1: Bandwidth Narrow

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
OSOS
OSOS
OS OFFSET (REPEATER SHIFT)
Set 12345678910
OSP1 P2 ;
Read 12345678910
OSP1 ;
Answer 12345678910
OSP1 P2 ;
P1 0: Fixed
P2 0: Simplex
1: Plus Shift
2: Minus Shift
ÚÚ
ÚÚ
Ú: FM mode only
PCPC
PCPC
PC POWER CONTROL
Set 12345678910
PCP1 P1 P1 ;
Read 12345678910
PC ;
Answer 12345678910
PCP1 P1 P1 ;
P1 000 - 255
PP
PP
PAA
AA
APRE-AMP (IPO)
Set 12345678910
PAP1 P2 ;
Read 12345678910
PAP1 ;
Answer 12345678910
PAP1 P2 ;
P1 0: Fixed
P2 0: IPO “ON”
1: IPO “OFF”
PBPB
PBPB
PB PLAY BACK
Set 12345678910
PBP1 ;
Read 12345678910
PB ;
Answer 12345678910
PBP1 ;
P1 0: STOP
1: VOICE MEMORY 1 PLAYBACK
2: VOICE MEMORY 2 PLAYBACK
6: DIGITAL VOICE RECODER PLAYBACK
NBNB
NBNB
NB NOISE BLANKER STATUS
Set 12345678910
NBP1 P2 ;
Read 12345678910
NBP1 ;
Answer 12345678910
NBP1 P2 ;
P1 0: Fixed
P2 0: Noise Blanker “OFF”
1: Noise Blanker “ON”
CONTROL COMMAND TABLES
OIOI
OIOI
OI OPPOSITE BAND INFORMATION
Set 12345678910
Read 12345678910
OI ;
Answer 12345678910
OIP1 P1 P1 P2 P2 P2 P2 P2
11 12 13 14 15 16 17 18 19 20
P2 P2 P2 P3 P3 P3 P3 P3 P4 P5
21 22 23 24 25 26 27 28 29 30
P6 P7 P8 P9 P9 P10 ;
P1 Current Memory Channel P2 VFO-B Frequency (Hz)
P3 Clarifier Direction +: Plus Shift, --: Minus Shift
Crarifier Offset: 0000 - 9999 (Hz)
P4 0: RX CLAR “OFF” 1: RX CLAR “ON”
P5 0: TX CLAR “OFF” 1: TX CLAR “ON”
P6 MODE 1: LSB 2: USB 3: CW 4: FM 5: AM 6: DATA (RTTY-LSB)
7: CW-R 8: USER-L 9: DATA (RTTY-USB)
B: FM-N C: USER-U
P7 0: VFO 1: Memory 2: Memory Tune 3: Quick Memory Bank (QMB)
P8 0: CTCSS “OFF” 1: CTCSS ENC/DEC 2: CTCSS ENC
P9: Tone Number (See Table 1)
P10 0: Simplex 1: Plus Shift 2: Minus Shift
NRNR
NRNR
NR NOISE REDUCTION
Set 12345678910
NRP1 P2 ;
Read 12345678910
NRP1 ;
Answer 12345678910
NRP1 P2 ;
P1 0: Fixed
P2 0: Noise Reduction “OFF”
1: Noise Reduction “ON”
Page 12
PSPS
PSPS
PS POWER SWITCH
Set 12345678910
PSP1 ;
Read 12345678910
PS ;
Answer 12345678910
PSP1 ;
P1 0: POWER “OFF”
1: POWER “ON”
This command requires dummy data be initially sent. Then after one second and
before two seconds the command is sent.

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
CONTROL COMMAND TABLES
Page 13
QIQI
QIQI
QI QMB STORE
Set 12345678910
QI ;
Read 12345678910
Answer 12345678910
QRQR
QRQR
QR QMB RECALL
Set 12345678910
QR ;
Read 12345678910
Answer 12345678910
QSQS
QSQS
QS QUICK SPLIT
Set 12345678910
QS ;
Read 12345678910
Answer 12345678910
RARA
RARA
RA RF ATTENUATOR
Set 12345678910
RAP1 P2 ;
Read 12345678910
RAP1 ;
Answer 12345678910
RAP1 P2 ;
P1 0: Fixed
P2 0: OFF
1: ON
RR
RR
RCC
CC
CCLAR CLEAR
Set 12345678910
RC ;
Read 12345678910
Answer 12345678910
RR
RR
RGG
GG
GRF GAIN
Set 12345678910
RGP1 P2 P2 P2 ;
Read 12345678910
RGP1 ;
Answer 12345678910
RGP1 P2 P2 P2 ;
P1 0: Fixed
P2 000 - 255
RIRI
RIRI
RI RADIO INFORMATION
Set 12345678910
Read 12345678910
RIP1 ;
Answer 12345678910
RIP1 P2 ;
P1 0: Hi-SWR
1: MIC-EQ
3: REC
4: PLAY
P2 0: OFF
1: ON
RLRL
RLRL
RL NOISE REDUCTION LEVEL
Set 12345678910
RLP1 P2 P2 ;
Read 12345678910
RLP1 ;
Answer 12345678910
RLP1 P2 P2 ;
P1 0: Fixed
P2 01 - 11
RDRD
RDRD
RD CLARIFIER MINUS OFFSET
Set 12345678910
RDP1 P1 P1 P1 ;
Read 12345678910
Answer 12345678910
P1 0000 - 9999 (Hz)

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
RR
RR
RTT
TT
TCLAR
Set 12345678910
RTP1 ;
Read 12345678910
RT ;
Answer 12345678910
RTP1 ;
P1 0: RX Clarifier “OFF”
1: RX Clarifier “ON”
RR
RR
RUU
UU
UCLARIFIER PLUS OFFSET
Set 12345678910
RUP1 P1 P1 P1 ;
Read 12345678910
Answer 12345678910
P1 0000 - 9999 (Hz)
SCSC
SCSC
SC SCAN
Set 12345678910
SCP1 ;
Read 12345678910
SC ;
Answer 12345678910
SCP1 ;
P1 0: Scan “OFF”
1: Scan “ON” (Upward)
2: Scan “ON” (Downward)
CONTROL COMMAND TABLES
RSRS
RSRS
RS RADIO STATUS
Set 12345678910
Read 12345678910
RS ;
Answer 12345678910
RSP1 ;
P1 0: NORMAL MODE
1: MENU MODE
Page 14
SHSH
SHSH
SH WIDTH
Set 12345678910
SHP1 P2 P2 ;
Read 12345678910
SHP1 ;
Answer 12345678910
SHP1 P3 P3 ;
P1 0:Fixed
P2 00 - 10 (Narrow)
11 - 21 (Normal)
22 - 31 (Wide)
P3 00 (Narrow)
16 (Normal)
31 (Wide)
SDSD
SDSD
SD CW BREAK-IN DELAY TIME
Set 12345678910
SDP1 P1 P1 P1 ;
Read 12345678910
SD ;
Answer 12345678910
SDP1 P1 P1 P1 ;
P1 0000: Full Break-in
0030 - 3000 (msec)
SMSM
SMSM
SM S-METER READING
Set 12345678910
Read 12345678910
SMP1 ;
Answer 12345678910
SMP1 P2 P2 P2 ;
P1 0: Fixed
P2 000 - 255
RMRM
RMRM
RM READ METER
Set 12345678910
Read 12345678910
RMP1 ;
Answer 12345678910
RMP1 P2 P2 P2 ;
P1 0: Depends of the Front Panel’s METER Switch
1: S Meter
4: ALC Meter
5: PO Meter
6: SWR Meter
P2 000 - 255
RPRP
RPRP
RP RESET POWER ON
Set 12345678910
RP ;
Read 12345678910
RP ;
Answer 12345678910
RP ;
Resetting the Microprocessor (Full Reset)

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
UPUP
UPUP
UP MIC UP
Set 12345678910
UP ;
Read 12345678910
Answer 12345678910
VDVD
VDVD
VD VOX DELAY TIME
Set 12345678910
VDP1 P1 P1 P1 ;
Read 12345678910
VD ;
Answer 12345678910
VDP1 P1 P1 P1 ;
P1 0100 - 3000 msec (100 msec multiples)
VV
VV
VGG
GG
GVOX GAIN
Set 12345678910
VGP1 P1 P1 ;
Read 12345678910
VG ;
Answer 12345678910
VGP1 P1 P1 ;
P1 000 - 255
SQSQ
SQSQ
SQ SQUELCLH LEVEL
Set 12345678910
SQP1 P2 P2 P2 ;
Read 12345678910
SQP1 ;
Answer 12345678910
SQP1 P2 P2 P2 ;
P1 0: Fixed
P2 000 - 255
ULUL
ULUL
UL PLL UNLOCK STATUS
Set 12345678910
Read 12345678910
UL ;
Answer 12345678910
ULP1 ;
P1 0: PLL “Lock”
1: PLL “Unlock”
CONTROL COMMAND TABLES
SVSV
SVSV
SV SWAP VFO
Set 12345678910
SV ;
Read 12345678910
Answer 12345678910
TSTS
TSTS
TS TXW
Set 12345678910
TSP1 ;
Read 12345678910
TS ;
Answer 12345678910
TSP1 ;
P1 0: TXW “OFF”
1: TXW “ON”
TXTX
TXTX
TX TX SET
Set 12345678910
TXP1 ;
Read 12345678910
TX ;
Answer 12345678910
TXP1 ;
P1 0: RADIO TX “OFF” CAT TX “OFF”
1: RADIO TX “OFF” CAT TX “ON”
2: RADIO TX “ON” CAT TX “OFF” (Answer)
Page 15
STST
STST
ST STEP
Set 12345678910
STP1 ;
Read 12345678910
ST ;
Answer 12345678910
STP1 ;
FM AM LSB/USB/CW
P1 0: 5.0 kHz 2.5 kHz 1.0 kHz
1: 6.25 kHz 5.0 kHz 2.5 kHz
2: 10.0 kHz 9.0 kHz 5.0 kHz
3: 12.5 kHz 10.0 kHz
4: 15.0 kHz 12.5 kHz
5: 20.0 kHz 25.0 kHz
FM
P1 6: 25.0 kHz
7: 50.0 kHz

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
VXVX
VXVX
VX VOX STATUS
Set 12345678910
VXP1 ;
Read 12345678910
VX ;
Answer 12345678910
VXP1 ;
P1 0: VOX “OFF”
1: VOX “ON”
CONTROL COMMAND TABLES
VMVM
VMVM
VM [V/M]KEY FUNCTION
Set 12345678910
VM ;
Read 12345678910
Answer 12345678910
VSVS
VSVS
VS VFO SELECT
Set 12345678910
VSP1 ;
Read 12345678910
VS ;
Answer 12345678910
VSP1 ;
P1 0: VFO-A
1: VFO-B
Page 16
VRVR
VRVR
VR VOICE
Set 12345678910
VRP1 ;
Read 12345678910
VR ;
Answer 12345678910
VRP1 ;
P1 0: VOICE “OFF”
1: VOICE 1 “ON”
2: VOICE 2 “ON”
Toggles frequency control between the VFO and Memory System.
VVVV
VVVV
VV VFO TO VFO
Set 12345678910
VV ;
Read 12345678910
VV ;
Answer 12345678910
VV ;
Copy the displayed VFO data to the opposite VFO.

FT-450 CAT OPERATION REFERENCE BOOK
CAT (COMPUTER AIDED TRANSCEIVER)OPERATION
Copyright 2007
VERTEX STANDARD CO., LTD.
All rights reserved
No portion of this manual
may be reproduced without
the permission of
VERTEX STANDARD CO., LTD.
EH024H120