Analog Demodulation Option R&S
FSV–K7
R&S
®
FSV-K7/K7S
15
Operating Manual 1176.7561.02 ─ 06
Table 2-2: Sample Rate, Measurement Time and Trigger Offset using a Gaussian demodulation filter
Demod. band-
width
Sample rate
Measurement time
Trigger offset
Min.
Max.
Min.
Max.
28 MHz
1)
112 MHz
8.929 ns
14.28 ms
-14.28
1.872457134 s
18 MHz
1)
72 MHz
13.88 ns
22.22 ms
-22.22 ms
2.912711097 s
10 MHz
40 MHz
25 ns
40 ms
-40 ms
5,242879975 s
8 MHz
32 MHz
31.25 ns
50 ms
-50 ms
6.553599969 s
5 MHz
12 MHz
83.33 ns
133.3 ms
-80 ms
10,48575995 s
3 MHz
10.666 MHz
93.75 ns
150 ms
-133.3 ms
17,47626667 s
1.6 MHz
6.4 MHz
156.25 ns
250 ms
-250 ms
32.76799984 s
800 kHz
3.2 MHz
312.5 ns
5 ms
-5 ms
65.53599969 s
400 kHz
1.6 MHz
625 ns
1 s
-1 s
131.0719994 s
200 kHz
800 kHz
1.25 us
2 s
-2 s
262.1439988 s
100 kHz
400 kHz
2.5 us
4 s
-4 s
524.2879975 s
50 kHz
200 kHz
5 us
8 s
-8 s
1048.575995 s
25 kHz
100 kHz
10 us
16 s
-16 s
2097.15199 s
12.5 kHz
50 kHz
20 us
32 s
-32 s
4194.30398 s
6.4 kHz
25.6 kHz
39.0625 us
62.5 s
-62.5 s
8191.999961 s
3.2 kHz
12.8 kHz
78.125 us
125 s
-125 s
16383.99992 s
1.6 kHz
6.4 kHz
156.25 us
250 s
-250 s
32767.99984 s
800 Hz
3.2 kHz
312.5 us
500 s
-500 s
65535.99969 s
400 Hz
1.6 kHz
625 us
1000 s
-1000 s
131071.9994 s
200 Hz
800 Hz
1.25 ms
2000 s
-2000 s
262143.9988 s
100 Hz
400 Hz
2.5 ms
4000 s
-4000 s
524287.9975 s
1)
gaussian filter curve is limited by IQ bandwidth
Large numbers of samples
Principally, the R&S
FSVA/FSV can handle up to 1.6 million samples. However, when
480 001 samples are exceeded, all traces that are not currently being displayed on a
screen are deactivated to improve performance. The traces can only be activated
again when the samples are reduced.
2.1.4
Variable-Sized Capture Buffer
The capture buffer size is now variable. By default, the size of the capture buffer is
identical to the defined measurement time. However, if you select a larger capture time
manually, you can then scroll through the data in the capture buffer by changing the
Instrument Functions Analog Demodulation