Yaesu FT-847, Руководство по эксплуатации

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93
FT-847 O
PERATING
M
ANUAL
CAT Data Protocol
Serial data is passed via the
CAT
jack on the rear
panel at a transfer rate set via Menu #37 (4800, 9600,
or 57600 bps). While data is being transferred, the
CAT
icon on the LCD will appear momentarily, dis-
appearing when the data flow is terminated.
All commands sent from the computer to the trans-
ceiver consist of five-byte blocks, with up to 200 ms
between each byte. The last byte in each block is the
instruction opcode , while the first four bytes of each
block are arguments (either parameters for that instruc-
tion, or dummy values required to pad the block out to
five bytes). Each byte consists of 1 start bit, 8 data
bits, no parity bit, and two stop bits.
CAT
D
ATA
B
YTE
F
ORMAT
CAT
5-B
YTE
C
OMMAND
S
TRUCTURE
There are 25 instruction opcodes for the FT-847, listed
in the chart on previous page. Many of these opcodes
are On/Off toggle commands for the same action (e.g.
“PTT On” and “PTT Off”).Most of these commands
require some parameter or parameters to be set. Irre-
spective of the the number of parameters present, ev-
ery Command Block sent
must consist of five bytes.
Accordingly, any
CAT
control program must construct
the five-byte block by selecting the appropriate instruc-
tion opcode, organizing the parameters as needed, and
providing unused “dummy” argument bytes to pad the
block to its required five-byte length (the dummy bytes
can contain any value). The resulting five bytes are
then sent, opcode last, from the computer to the FT-
847 CPU via the computer’s serial port and the
transceiver’s
CAT
jack.
All
CAT
data values are hexadecimal.
Note that, unlike most other Yaesu transceivers, the
FT-847 serial data cable is a “null modem” (“crossed”)
type, not a “straight” serial data cable.
CAT
(C
OMPUTER
A
IDED
T
RANSCEIVER
)
S
YSTEM
P
ROGRAMMING
Constructing and Sending
CAT
Commands
Example #1:
Set the Main VFO frequency to 439.70 MHz
r
Per the
CAT
command table, the opcode for
“S
ET
F
REQUENCY TO
M
AIN
B
AND
” is 01 (set by
the “ P1 ” command byte). Placing the opcode
into the 5th data bit position, we then enter the
frequency into the first four data bit positions:
Send these five bytes to the transceiver, in the
order shown above.
Example #2:
Turn the “S
ATELLITE
” Mode “O
N
”
r
Per the CAT command table, the opcode for “S
ET
S
ATELLITE
M
ODE
O
N
” is 4E (hex). Placing the
opcode into the 5th data bit position, we then
enter dummy values into all other parameter lo-
cations:
Send these five bytes to the transceiver, in the
order shown above.
Start
B it
0 1 2 3 4 5 6 7
S top
B it
S top
B it
Command
Data
L.S.D.
Parameter
1
Parameter
2
Parameter
3
Parameter
4
M.S.D.
C
OMMAND
Freq.
(Hz)
D1
Freq.
(Hz)
D1
Freq.
(Hz)
D1
Freq.
(Hz)
D1
67.0 3F 94.8 1D 131.8 0 9 186.2 0 4
69.3 3 9 97.4 3 A 136.5 1 8 192.8 1 3
71.9 1F 100.0 0D 141.3 0 8 203.5 0 3
74.4 3 E 103.5 1C 146.2 1 7 210.7 1 2
77.0 0F 107.2 0C 151.4 0 7 218.1 0 2
79.7 3D 110.9 1 B 156.7 1 6 225.7 11
82.5 1 E 114.8 0 B 162.2 0 6 233.6 0 1
85.4 3C 118.8 1 A 167.9 1 5 241.8 1 0
88.5 0 E 123.0 0 A 173.8 0 5 250.3 0 0
91.5 3 B 127.3 1 9 179.9 1 4
− −
CTCSS Tone Data