Keysight E8663D, Руководство пользователя

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Keysight E8357D/67D & E8663D PSG User’s Guide 95
Basic Digital Operation
Arbitrary (ARB) Waveform File Headers
3. Return to the ARB Setup menu: Press Return .
In the ARB Setup menu (shown in Figure 3-3 ), you can change the current
instrument settings. Figure 3-3 also shows the softkey paths used in steps
four through nine.
4. Set the ARB sample clock to 5 MHz: Press ARB Sample Clock > 5 > MHz .
5. Set the modulator attenuation to 15 dB:
Press More (1 of 2) > Modulator Atten n.nn dB Manual Auto to Manual >
15 > dB .
6. Set the I/Q modulation filter to a through:
Press I/Q Mod Filter Manual Auto to Manual > Through .
7. Set marker one to blank the RF output at the set marker point(s):
Press More (2 of 2) > Marker Utilities > Marker Routing > Pulse/RF Blank
> Marker 1 .
For information on setting markers, see “Using Waveform Markers” on
page 111 .
8. Set the polarity of Marker 1 negative:
Press Return > Marker Polarity > Marker 1 Polarity Neg Pos to Neg.
9. Return to the Header Utilities menu: Press Return > Return > Header
Utilities .
Notice that the
Current Inst. Settings
column now reflects the
changes made to the current signal generator setup in steps 4 through 8,
but that the saved header values have not changed (as shown in
Figure 3-4
on page 97
).
10. Save the current settings to the file header: Press Save Setup To Header
softkey.
The settings from the
Current Inst. Settings
column now appear in
the
Saved Header Settings
column. The file header has been modified
and the current instrument settings saved. This is shown in Figure 3-5 on
page 97 .
While a modulation format is active (is on), the waveform file
(AUTOGEN_WAVEFORM) plays and you can modify the header information
within the active modulation format. Once you turn the modulation format off,
the header information is available only through the dual ARB player.
I/Q Mod Filter: The I/Q modulator filter setting. The modulator filter affects the I/Q signal modulated onto the RF
carrier.
I/Q Output Filter: The I/Q output filter setting. The I/Q output filter is used for I/Q signals routed to the rear panel I
and Q outputs.
Mod Attenuation: The I/Q modulator attenuation setting.