Acquisition and Display
7-3
IM 701310-01E
3
2
1
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
App
Index
7.2 Turning High Resolution Mode ON/OFF
Procedure
1.
Press
ACQ
.
2.
Press the
Hi-Res Mode
soft key to select ON or OFF.
Explanation
Bandwidth filtering reduces data quantization noise and enables the DL9000 to produce
high resolution data that is greater than 8 bits. Normally, data is stored to the acquisition
memory using 8 bits, and higher resolution data is converted to 8-bit data before it is
saved. When you turn high resolution mode ON, the DL9000 saves data using 16 bits (12
effective bits). This enables the DL9000 to save high resolution data as is.
The maximum record lengths change for each instrument in the following way when high
resolution mode is ON.
• 701307/701310/701312(DL9040/DL9140/DL9240):
2.5 MW → 1.25 MW
• 701308/701311/701313(DL9040L/DL9140L/DL9240L):
6.25 MW → 2.5 MW
If you turn high resolution mode ON when the bandwidth limit is set to FULL, the
bandwidth limit will automatically change to 200 MHz.