Agilent Technologies 89410A - To Load the Multi-Path Signal from the Signals Disk

To load the multi-path signal from the Signals Disk
This task shows you how to load a 16-QAM, multi-path, time-capture signal
from the Signals Disk. Other tasks in this section use this signal to teach
you how to use adaptive equalization.
1. Initialize the analyzer and select the Digital Demodulation instrument mode:
Press [
Instrument Mode
], [
receiver
], then press:
89410A: [
input section (0-10 MHz)
].
89441A: [
RF section (0-10 MHz)
].
Press [
Preset
].
Press [
Instrument Mode
], [
demod type
], [
Digital
].
2. If your analyzer has the optional, second input-channel installed, turn it off:
Press [
Input
], [
channel 2
], [
ch2 state off
].
3. Load the time-capture data into the capture buffer:
Insert the Signals Disk in the analyzer’s disk drive.
Press [
Save/Recall
], [
default disk
], [
internal disk
] to select the internal disk drive.
Press [
Return
] (bottom softkey), [
catalog on
]to display the files on the disk.
Rotate the knob until the file EQSIGNAL.DAT is highlighted.
Press [
recall more
], [
recall capture buffer
], [
enter
] (takes about 2 minutes).
Using time-captured data causes the analyzer to automatically measure
from the capture-buffer instead of the input channel and sets the center
frequency, span, and resolution bandwidth to those used when the data
was captured. In a typical equalization measurement you would set these
parameters instead of loading captured data.
Using Adaptive Equalization (Options AYA and AYH)
12-3