Download Print this page

Advertisement

The following tables outline the 16-byte data record
structure common to the Operating Data, VFO-A, VFO-
B and Memory Data records. The table below shows
assignments for each of the 16-bytes in the Operating
Data Record.
Byte
16-Byte Data Record Assignment
0
Band Selection
1
2
Operating Frequency
3
4
5
Clarifier Offset
6
7
Operating Mode
8
IF Filter Offset
9
VFO/MEM Operating Flags
A ~ F
Not Used
Band Selection - The 0.1~30 MHz transceiver op-
erating range is divided into 28 bands, represented in
hexadecimal format in the table below. Data read in
this record after downloading is in binary format, and
must be converted to hexadecimal, then translated to
the corresponding band.
Hex
Band
Code
01H
0.1 ~ 0.5 MHz
02H
0.5 ~ 1.5 MHz
03H
1.5 ~ 1.8 MHz
04H
1.8 ~ 2.0 MHz
05H
2.0 ~ 2.5 MHz
06H
2.5 ~ 3.0 MHz
07H
3.0 ~ 3.5 MHz
08H
3.5 ~ 4.0 MHz
09H
4.0 ~ 6.5 MHz
0AH
6.5 ~ 7.0 MHz
0BH
7.0 ~ 7.5 MHz
0CH
7.5 ~ 8.0 MHz
0DH
8.0 ~ 10.0 MHz
0EH
10.0 ~ 10.5 MHz
MARK-V FT-1000MP Operating Manual
CAT System Computer Contro
16-B
D
R
YTE
ATA
Hex
Band
Code
0FH
10.5 ~ 12.0 MHz
10H
12.0 ~ 14.0 MHz
11H
14.0 ~ 14.5 MHz
12H
14.5 ~ 15.0 MHz
13H
15.0 ~ 18.0 MHz
14H
18.0 ~ 18.5 MHz
15H
18.5 ~ 21.0 MHz
16H
21.0 ~ 21.5 MHz
17H
21.5 ~ 22.0 MHz
18H
22.0 ~ 24.5 MHz
19H
24.5 ~ 25.0 MHz
1AH
25.0 ~ 28.0 MHz
1BH
28.0 ~ 29.0 MHz
1CH
29.0 ~ 30.0 MHz
S
ECORD
TRUCTURE
The Band Selection data byte is divided into two 4-
bit fields, representing the first and second value of
the band number hex code. The Bit 0 and Bit 1 of the
first field are used as flags for the memory mask and
scan skip feature. A bit value of "1" means enabled,
and "0" for disabled. Each value of the hex code is
entered into its respective field in 4-bit binary format.
The table below outlines the Data Byte field, and show
an example of how the 24.5 ~ 25.0 MHz band would
be read as:
Band Selection Data Byte ( 0 )
Bit 0*Bit 1** Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7
Field 1
0*
0**
0
*Mem
**Scan
0001 = 1
Mask
Skip
"0" = Off
"1" = On
Operating Frequency - Likewise, the current op-
erating frequency is similarly coded, this time into four
bytes comprised of eight fields, from MSB to LSB. For
example, a read binary value of 0000 0000 000 0101
0010 0100 0001 0000 is 14.250.00 MHz as follows:
Operating Frequency Data Bytes (1-4)
Byte 1
Byte 2
Field 1
Field 2
Field 3
Field 4
MSB
0 0 0 0
0 0 0 0
0 0 0 0
0 1 0 1
0
0
0
10's
10's
1's
Hz
Hz
kHz
00052410 = 14.250.00 MHz
Clarifier Offset - Clarifier offset is written using 16-
bit binary data in two bytes. Negative offsets are ex-
pressed in binary 2s-complement format, with a lead-
ing bit flag value* of "1." Although frequency resolution
below 10 Hz cannot be viewed, absolute Clarifier off-
sets down to 0.625 Hz can be read from downloaded
data.
Arithmetic conversion must be done on the binary
value to arrive at the actual frequency offset (multiply-
ing the 16-bit binary offset by 0.625). For example, a
binary value of 0011 1110 0110 1111 (3E6FH or 15,983)
multiplied by 0.625 results in an offset of +9989.375
Hz.
Field 2
1
1
0
0
1001 = 9
19H = 24.5 ~ 25.0 MHz
( refer to band chart )
Byte 3
Byte 4
Field 8
Field 5
Field 6
Field 7
0 0 1 0
0 1 0 0
0 0 0 1
0 0 0 0
5
2
4
1
10's
100's
1's
10's
kHz
kHz
MHz
MHz
page 91
1
LSB
0
100's
MHz

Advertisement

Comments to this Manuals

Symbols: 0
Latest comments: