Configuring The Lf Output (Option Unt); To Configure The Lf Output With An Internal Modulation Source - Keysight E8267D User Manual

Analog Modulation

Configuring the LF Output (Option UNT)

Configuring the LF Output (Option UNT)

With Option UNT, the signal generator has a low frequency (LF) output
(described on
Internal 1 Monitor, Internal 2 Monitor, Function Generator 1, or Function
Generator 2.
Using Internal 1 Monitor or Internal 2 Monitor as the LF output source, the LF
output provides a replica of the signal from the internal source that is being
used to modulate the RF output. The specific modulation parameters for this
signal are configured through the AM, FM, or FM menus.
Using Function Generator 1 or Function Generator 2 as the LF output source,
the function generator section of the internal modulation source drives the LF
output directly. Frequency and waveform are configured from the LF output
menu, not through the AM, FM, or FM menus. You can select the waveform
shape from the following choices:
The LF Out Off On softkey controls the operating state of the LF output.
NOTE
However, when the LF output source selection is Internal Monitor, you have
three ways of controlling the output. You can use the modulation source (AM,
FM, or FM) on/off key, the LF output on/off key, or the Mod On/Off softkey.
The RF On/Off hardkey does not apply to the LF OUTPUT connector.

To Configure the LF Output with an Internal Modulation Source

In this example, the internal FM modulation is the LF output source.
Keysight E8357D/67D & E8663D PSG User's Guide
page 16). The LF output's source can be switched between
Sine sine wave with adjustable amplitude and frequency
Dual–Sine dual–sine waves with individually adjustable
frequencies and a percent–of– peak–amplitude setting
for the second tone (available from function generator 1
only)
Swept–Sine a swept–sine wave with adjustable start and stop
frequencies, sweep rate, and sweep trigger settings
(available from function generator 1 only)
Triangle triangle wave with adjustable amplitude and frequency
Ramp ramp with adjustable amplitude and frequency
Square square wave with adjustable amplitude and frequency
Noise noise with adjustable amplitude generated as a
peak–to–peak value (RMS value is approximately 80%
of the displayed value)
DC direct current with adjustable amplitude
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