Agilent X-Series Signal Generators User’s Guide 157
Basic Digital Operation (Option 653/655/656/657)
Saving a Waveform’s Settings & Parameters
Viewing and Modifying Header Information
The following example uses the factory–supplied waveform file RAMP_TEST_WFM.
1. From BBG media, select the waveform RAMP_TEST_WFM:
a. Press Mode > Dual ARB > Select Waveform.
b. In the Segment On column, highlight the waveform RAMP_TEST_WFM.
c. Press Select Waveform.
2. Open the Header Utilities menu:
Press More > Header Utilities
The Figure 8- 5 shows the default file header for the factory–supplied waveform RAMP_TEST_WFM.
The Header Field column lists the file header parameters; use the Page Down key to see them all.
The Saved Header Settings column shows that most of the settings are Unspecified.
Unspecified means that there is no setting saved for that particular parameter.
RF Blank Routing Which marker, if any, implements the RF blanking function (described on page 172) when the
marker signal is low. RF blanking also uses ALC hold. There is no need to select the ALC Hold
Routing for the same marker when you are using the RF Blank Routing function. When the marker
signal goes high, RF blanking discontinues.
Mod Attenuation The I/Q modulator attenuation setting (set in the Arb Setup menu shown in Figure 8- 1 on
page 147).
BB Freq Offset The baseband frequency offset, in Hz (see page 200).
AWGN: St a t e Indicated whether real–time noise is on (1) or off (0) (see page 245).
AWGN: C/N Ratio Carrier to noise ration, in dB (see page 250).
AWGN: C ar r ier BW Bandwidth over which the noise power is integrated, in Hz (see page 250).
AWGN: Nois e BW Bandwidth of the noise, in Hz (see page 250).
AWGN: C ar r ier RMS The carrier RMS across the carrier bandwidth (see page 250).
Phase Noise State Indicated whether phase noise is on (1) or off (0) (see page 310).
Phase Noise F1 The start frequency for the level mid–frequency characteristics (see page 310).
Phase Noise F2 The end frequency for the level mid–frequency characteristics (see page 310).
Phase Noise Lmid The amplitude for the level mid–frequency characteristics (see page 310).
Modulation Filter The real- time modulation filter type selected (see page 224).
Over–Range Protect Indicated whether DAC Over–Range Protection is on (1) or off (0) (see page 314).
Unique Waveform Id 0 = no Id; once an Id is assigned, it cannot be changed.
License Required Indicates whether a license is required to play the waveform. See also: “Viewing Options and
Licenses” on page 40
Can be Read Out Indicates whether the waveform can be queried through SCPI or FTP.
Table 8-1 File Header Entries (Continued)
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