Keysight E8357D/67D & E8663D PSG User’s Guide 207
Custom Arb Waveform Generator
Working with Modulation Types
3.
Press
Freq Dev
>
1.8
>
kHz
.
4.
Press
4–Lvl FSK
.
This sets the frequency deviation and opens the
Frequency Values
editor with the 4–level FSK default values displayed. The frequency value
for data
0000
is highlighted.
5.
Press
–1.81
>
kHz
.
6.
Press
–590
>
Hz
.
7.
Press
1.805
>
kHz
.
8.
Press
610
>
Hz
.
As you modify the frequency deviation values, the cursor moves to the
next data row. An unstored file of frequency deviation values is created for
your custom 4–level FSK file.
9.
Press
Load/Store
>
Store To File
.
If there is already a file name from the
Catalog of FSK Files
occupying
the active entry area, press the following keys:
Edit Keys
>
Clear Text
10.
Enter a file name (for example,
NEWFSK
) using the alpha keys and the
numeric keypad.
11.
Press
Enter
.
The user–defined FSK modulation should now be stored in the
Catalog
of FSK Files
.
Differential Wideband IQ (Option 016)
The signal generator with Option 016 can use an external I/Q modulation
source such as a two channel arbitrary waveform generator to generate up to 2
GHz modulation bandwidth at RF. To enable the wideband I/Q inputs:
1.
Press the front panel
I/Q
hardkey.
2.
Press
I/Q Off
.
3.
Press
I/Q Path Wide (Ext Rear Inputs)
.
4.
Press
I/Q On
.
Connect the external I/Q modulation source to the signal generator’s rear
panel, differential WIDEBAND I/Q INPUTS. The voltage level at the inputs is
+/– 1 Vdc. Wideband IQ is available for RF above 3.2 GHz. Refer to the
Data
Sheet
for more information.
