Icom IC-7300 - Dynamic Range - Its About Optimal Gain Control

10
■ CI-V commands
D Command formats
• Scope waveform data
Command: 27 00
Outputs the waveform data to the controller.
X XX X0 0 X XX X
1 2 3 4 5
X X X X
......
X X
6 7
......
X X
1: 00 (Fixed)
2: Order of division data (Current): 01~11
3: Division number (Maximum): 11(USB)
LWhen sent through theUSB port, the data is
divided by 11 and sent in sequential order.
LThe 1st data sends only the wave information
(1 ~ 6) without the waveform data (7). The
2nd or later data sends the minimum wave
information (1 ~ 3) with waveform data (7).
4: Spectrum scope mode data:
• 00 = Center mode scope
• 01 = Fixed mode scope
• 02 = SCROLL-C mode scope
• 03 = SCROLL-F mode scope
5: Waveform information:
The waveform information differs, depending on
the Spectrum scope mode.
• In the Center mode:
Center frequency and span are sent.
See page 19-9 of the IC-7300 FULL MANUAL
for Operating frequency data, and the Scope
span settings (2 ~ 6) to the right.
• In the Fixed, SCROLL-C, and SCROLL-F modes:
Lower edge and higher edge frequencies are
sent.
0 X X X X X X X X 0 X X X X X X X X 0 0
10 Hz digit: 0 (Fixed) 1 Hz digit: 0–9
1 kHz
digit: 0–9
100 Hz
digit: 0–9
100 kHz
digit: 0–9
10 kHz
digit: 0–9
10 MHz
digit: 0–7
1 MHz
digit: 0–9
1 GHz
digit: 0, F*
100 MHz
digit: 0 (Fixed)
10 Hz digit: 0–9
1 Hz
digit: 0–9
1 kHz
digit: 0–9
100 Hz
digit: 0–9
100 kHz
digit: 0–9
10 kHz
digit: 0–7
10 MHz
digit: 0–9
1 MHz
digit: 0–9
1 GHz
digit: 0 (Fixed)
100 MHz
digit: 0 (Fixed)
Lower edge Higher edge
* “F” means that the Lower edge frequency is a negative value.
L Entry of less than 100 Hz digits are ignored.
• Scope span settings
(in the Center mode and SCROLL-C mode Scope)
Command: 27 15
0 0 0 0 X X X X 0 0 0 0
1
1 kHz digit: 0, 2, 5 100 Hz digit: 0, 5 100 kHz digit: 0, 1, 2, 5 10 kHz digit: 0, 1, 2, 5 10 Hz digit: 0 (Fixed) 1 Hz digit: 0 (Fixed) 10 MHz digit: 0 (Fixed) 1 MHz digit: 0 (Fixed) 1 GHz digit: 0 (Fixed) 100 MHz digit: 0 (Fixed)
2 3 4 5 6
0 (Fixed) 0 (Fixed)
Span (kHz)
2500 2.5
5000 5
10000 10
25000 25
50000 50
100000 100
250000 250
500000 500
• Spectrum scope mode settings
Command: 27 14
0 0 X X
00=Center mode
01=Fixed mode
02=SCROLL-C mode
03=SCROLL-F mode
Fixed
0 0 X X
01=Edge 1
02=Edge 2
03=Edge 3
04=Edge 4
Fixed
• Scope Edge number settings
(in the Fixed mode and SCROLL-F mode Scope)
Command: 27 16
6: Out of range information:
• 00 = In range
• 01 = Out of range
LIf the scope data is out of range, the waveform
data (7) is omitted.
7: Waveform data:
The transceiver outputs the drawn waveform data.
The data range or data length of the waveform
data is judged by the controller. (The data range
is basically the same as the display size of the
scope on the controller.)
• Data range: 0 ~ 160
• Data length: 475