User`s manual

[SOURce:]FREQuency2
The [SOURce:]FREQuency2 subsystem controls the second of the
Agilent E1445A’s two frequency generators. (
[SOURce:]FREQuency[1] controls
the first generator.)
This second generator consists of a simple divide-by-n of the currently selected
reference oscillator source, where n may be 1, 2, 3, or any even value between 4 and
131,072. This generator has better phase noise characteristics and permits higher
frequency operation than the direct digital synthesis (NCO) technique used by the
first generator. The first generator has finer resolution and frequency sweeping
capability. Also, sine wave output is possible only with the first generator. Either
generator may be used for square, ramp, triangle and arbitrary waveform output.
The values programmed by this subsystem are only used when
TRIGger:STARt:SOURce is set to INTernal2.
Subsystem Syntax [SOURce:]
FREQuency2
[:CW|:FIXed] <
frequency>
[SOURce:]FREQuency2
330 Command Reference Chapter 8