Specifications for Analog Modulation

Internal modulation source

Provides modulating signal for FM, AM, pulse and phase modulation signals, and provides LF output source for basic function generator capability.

External modulation inputs

Waveforms

Sine, square, ramp, triangle, pulse, noise

 

 

 

Rate range

 

 

Sine

0.1

Hz to 100 kHz

Square, ramp, triangle

0.1

Hz to 20 kHz

 

 

 

Resolution

0.1

Hz

 

 

Frequency accuracy

Same as RF reference source

 

Swept sine mode [frequency, phase continuous]

Operating modes

Triggered or continuous sweeps

Frequency range

0.1

Hz to 100 kHz

Sweep time

1 ms to 65 sec

Resolution

1 ms

 

 

 

Dual sinewave mode

 

 

Frequency range

0.1

Hz to 100 kHz

Amplitude ratio

0 to 100%

Amplitude ratio resolution

0.1%

 

 

 

LF audio out mode

0 to 2.5 Vpeak into 50

Amplitude

Output impedance

50 nominal

 

 

 

Modulation types

 

Ext 1

FM, FM, AM, pulse, and burst envelope

Ext 2

FM, FM, AM, and pulse

LO/HI annunciator [100 Hz to 10 MHz BW, AC coupled inputs only]. Activated when input level error exceeds 3% [nominal].

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Agilent Technologies E4438C manual Internal modulation source, External modulation inputs