Agilent Technologies Agilent 33500 Series User Manual

Frequency-Shift Keying (FSK) Modulation
l When the External source is selected, the output frequency is determined by the signal level on the rear-panel Ext
Trig connector. When a logic low is present, the carrier frequency is output. With a logic high, the hop frequency is
output.
FSK Rate
FSKey:INTernal:RATE {<rate_in_Hz>|MIN|MAX}
The FSK rate is the rate at which the output frequency "shifts" between the carrier frequency and the hop frequency
using the internal FSK source.
l FSK rate (internal source): 125 µHz to 1 MHz, default 10 Hz.
l The FSK rate is ignored when the external FSK source is selected.
FSK Source
FSKey:SOURce {INTernal|EXTernal}
May be Internal (default) or External.
l When the Internal source is selected, the rate at which the output frequency "shifts" between the carrier
frequency and hop frequency is determined by the FSK rate.
l When the External source is selected, the output frequency is determined by the signal level on the rear-panel Ext
Trig connector. When a logic low is present, the carrier frequency is output. With a logic high, the hop frequency is
output.
l The connector used for externally-controlled FSK waveforms (Ext Trig) is not the same connector that is used for
externally-modulated AM, FM, PM, and PWM waveforms (Modulation In). When used for FSK, the Ext Trig con-
nector does not have adjustable edge polarity.
82 Agilent 33500 Series Operating and Service Guide

Agilent Technologies Agilent 33500 Series Specifications

General

Brand	Agilent Technologies
Model	Agilent 33500 Series
Category	Inverter
Language	English