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FT-450
OPERATION MANUAL
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Yaesu FT-450 CAT OPERATION REFERENCE BOOK

CAT
(
COMPUTER AIDED TRANSCEIVER
FT-450
)
OPERATION
CAT O
EFERENCE
PERATION
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 diver­sity reception using an external personal computer. This allows multiple control operations to be fully automated as single mouse clicks or keystroke operations on the com­puter keyboard.
The FT-450 has a built-in level converter, allowing di­rect 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 com­puter. 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 com­puter uses a custom connector, you may have to construct the cable. In this case, refer to the technical documenta­tion supplied with your computer for correct data connec­tion.
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 infor­mation provided in this chapter explains the serial data structure and opcodes used by the CAT system. This in­formation, 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 sys­tem.
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
CAT JACK
I/O
--­Outputs the Serial Data from the
Output
transceiver to the computer. Inputs the Serial Data from the
Input
computer to the transceiver.
---
---
--­When the computer is not ready
Input
to receive data, this port goes “L” to inhibit transmit data from the transceiver. When the transceiver is not ready
Output
to receive data, this port goes “L” to inhibit the transmit data from the computer.
---
FUNCTION
---
---
Signal Ground
---
---
Page 1
INPUT DC 13.8V 22A
COM
ANT
EXT
GND
SPKR
CATLINEARTUNERDATA
CAT
RS-232C “Straight” Cable
FT-450 CAT OPERATION REFERENCE BOOK
CAT
(
COMPUTER AIDED TRANSCEIVER
CONTROL COMMAND
)
OPERATION
A computer control command is composed of an alpha­betical 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 com­mand (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.
Parameters
Parameters are used to specify information necessary to implement the desired command.
The parameters to be used for each command are prede­termined. The number of digits assigned to each param­eter is also predetermined. Refer to the “Control Com­mand List” and the “Control Command Tables” to con­figure 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 FT­450, 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
Page 2
CAT
C
OMMAND
ANTENNA TUNER CONTROL
AC
AF GAIN
AG
AUTO INFORMATION
AI
BAND DOWN
BD
BREAK-IN
BI
MANUAL NOTCH
BP
BAND SELECT
BS
BAND UP
BU
BUSY
BY
CHANNEL UP/DOWN
CH
CTCSS NUMBER
CN
CONTOUR
CO
CW SPOT
CS
CTCSS
CT
DIMMER
DA
MIC DOWN
DN
DIMMER SWITCH
DS
ENCODER DOWN
ED
ENCODER UP
EU
MENU
EX
FREQUENCY VFO-A
FA
FREQUENCY VFO-B
FB
FAST STEP
FS
FUNCTION TX
FT
AGC FUNCTION
GT
IDENTIFICATION
ID
INFORMATION
IF
IF-SHIFT
IS
KEYER MEMORY
KM
KEY PITCH
KP
KEYER
KR
KEY SPEED
KS
CW KEYING
KY
LOCK
LK
LOAD MESSEGE
LM
MEMORY CHANNEL
MC
MODE
MD
MIC GAIN
MG
MODE KEY
MK
MONITOR LEVEL
ML
MEMORY READ
MR
METER SW
MS
(
COMPUTER AIDED TRANSCEIVER
CONTROL COMMAND LIST
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
ANS.
O
O
O
O
O
O
X
X
O
O
O
O
X
X
X
X
O
O
X
X
O
O
O
O
O
O
O
O
O
O
X
X
O
O
X
X
X
X
O
O
O
O
O
O
O
O
O
O
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
X
X
O
O
O
O
O
O
C
OMMAND
MEMORY WRITE
MW
O
NARROW
NA
O
NOISE BLANKER
NB
X
NOISE REDUCTION
NR
X
OPPOSITE BAND INFORMATION
OI
O
OFFSET (REPEATER SHIFT)
OS
O
PRE-AMP (IPO)
PA
X
PLAY BACK
PB
X
POWER CONTROL
PC
O
POWER SWITH
PS
X
QMB STORE
QI
O
QMB RECALL
QR
O
QUICK SPLIT
QS
O
RF ATTENUATOR
RA
O
CLAR CLEAR
RC
X
CLAR DOWN
RD
X
RF GAIN
RG
O
RADIO INFORMATION
RI
X
NOISE REDUCTION LEVEL
RL
X
READ METER
RM
O
RESET POWER ON
RP
O
RADIO STATUS
RS
O
CLAR
RT
O
CLAR UP
RU
O
SCAN
SC
O
SEMI BREAK-IN DELAY TIME
SD
X
WIDTH
SH
O
S METER
SM
O
SQUELCH LEVEL
SQ
X
STEP
ST
O
SWAP VFO
SV
O
TXW
TS
O
TX SET
TX
X
UNLOCK
UL
O
MIC UP
UP
X
VOX DELAY TIME
VD
X
VOX GAIN
VG
O
[
V/M] KEY FUNCTION
VM
O
VOICE
VR
X
VFO SELECT
VS
O
VFO TO VFO
VV
X
VOX
VX
O
)
OPERATION
FUNCTION SET READ AI
X
O
O
O
O
O
O
O
O
X
O
O
O
O
O
O
O
O
O
O
X
O
X
O
X
O
O
O
X
O
X
O
O
O
O
X
O
O
O
X
X
O
O
X
O
O
X
O
O
O
O
O
O
O
O
X
O
O
O
O
X
O
O
O
O
O
O
X
X
O
O
O
O
O
X
O
O
O
O
O
O
O
O
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
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
Page 3
FT-450 CAT OPERATION REFERENCE BOOK
CAT
(
COMPUTER AIDED TRANSCEIVER
CONTROL COMMAND TABLES
AA
CC
A
C ANTENNA TUNER CONTROL
AA
CC
Set 12345678910
Read 12345678910
Answer 12345678910
AA
GG
A
G AF GAIN
AA
GG
Set 12345678910
Read 12345678910
Answer 12345678910
AIAI
AI AUTO INFORMATION
AIAI
Set 12345678910
Read 12345678910
Answer 12345678910
BDBD
BD BAND DOWN
BDBD
Set 12345678910
Read 12345678910
ACP1 P2 P3 ;
AC ;
ACP1 P2 P3 ;
AGP1 P2 P2 P2 ;
AGP1 ;
AGP1 P2 P2 P2 ;
AIP1 ;
AI ;
AIP1 ;
BDP1 ;
)
OPERATION
P1 0: Fixed P3 0: Tuner “OFF” P2 0: Fixed 1: Tuner “ON”
P1 0: Fixed P2 000 - 255
P1 0: Auto Information “OFF”
1: Auto Information “ON”
This parameter is set to “0” (OFF) automatically when the transceiver is turned “OFF.”
P1 0: VFO-A
1: VFO-B
2: Tuning Start
Answer 12345678910
BIBI
BI BREAK-IN
BIBI
Set 12345678910
Read 12345678910
Answer 12345678910
BPBP
BP MANUAL NOTCH
BPBP
Set 12345678910
Read 12345678910
Answer 12345678910
BSBS
BS BAND SELECT
BSBS
Set 12345678910
Read 12345678910
Answer 12345678910
BB
UU
B
U BAND UP
BB
UU
Set 12345678910
Read 12345678910
BIP1 ;
BI ;
BIP1 ;
BPP1 P2 P3 P3 P3 ;
BPP1 P2 ;
BPP1 P2 P3 P3 P3 ;
BSP1 P1 ;
BUP1 ;
P1 0: Break-in “OFF”
1: Break-in “ON”
P1 0: Fixed P2 0: Manual NOTCH “ON/OFF”
1: Manual NOTCH Position
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
P1 0: Fixed
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
Answer 12345678910
BYBY
BY BUSY
BYBY
Set 12345678910
Read 12345678910
BY ;
Answer 12345678910
BYP1 P2 ;
P1 0: BUSY “OFF”
1: BUSY “ON”
P2 0: Fixed
FT-450 CAT OPERATION REFERENCE BOOK
Page 4
CAT
(
COMPUTER AIDED TRANSCEIVER
CONTROL COMMAND TABLES
CHCH
CH CHANNEL UP/DOWN
CHCH
Set 12345678910
Read 12345678910
Answer 12345678910
CNCN
CN CTCSS TONE FREQUENCY
CNCN
Set 12345678910
Read 12345678910
Answer 12345678910
COCO
CO CONTOUR
COCO
Set 12345678910
Read 12345678910
Answer 12345678910
CSCS
CS CW SPOT
CSCS
Set 12345678910
Read 12345678910
Answer 12345678910
CTCT
CT CTCSS
CTCT
Set 12345678910
Read 12345678910
Answer 12345678910
DD
AA
D
A DIMMER
DD
AA
Set 12345678910
Read 12345678910
Answer 12345678910
DNDN
DN MIC DWN
DNDN
Set 12345678910
Read 12345678910
CHP1 ;
CNP1 P2 P2 ;
CNP1 ;
CNP1 P2 P2 ;
COP1 P2 P3 P3 ;
COP1 P2 ;
COP1 P2 P3 P3 ;
CSP1 ;
CS ;
CSP1 ;
CTP1 P2 ;
CTP1 ;
CTP1 P2 ;
DAP1 P1 P2 P2 ;
DA ;
DAP1 P1 P2 P2 ;
DN ;
)
OPERATION
P1 0: Memory Channel “UP”
1: Memory Channel “DOWN”
P1 0: Fixed P2 00 - 49: Tone Frequency Number (See Table 1)
P1 0: Fixed P2 0: CONTOUR “ON/OFF”
1: CONTOUR Frequency
P1 0: OFF
1: ON
P1 0: Fixed P2 0: CTCSS “OFF”
1: CTCSS ENC/DEC “ON” 2: CTCSS ENC “ON”
P1 00 - 04 P2 00: Fixed
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
Answer 12345678910
DSDS
DS DIMMER SWITCH
DSDS
Set 12345678910
DSP1 ;
Read 12345678910
DS ;
Answer 12345678910
DSP1 ;
00
67.0 Hz
01
69.3 Hz
02
71.9 Hz
03
74.4 Hz
04
77.0 Hz
05
79.7 Hz
06
82.5 Hz
07
85.4 Hz
08
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
18 19 20 21 22 23 24 25 26
Page 5
P1 0: DIMMER “OFF”
1: DIMMER “ON”
TABLE 1
CTCSS TONE CHART
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
FT-450 CAT OPERATION REFERENCE BOOK
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
---
---
---
---
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