Instructions

4
.
Panel Operation
38
output the carrier frequency when input logic low level, and output the
frequency hopping frequency when input logic high level. When the slope is
"negative", the opposite is true.
(4) Press the FSK Rate softkey to set the FSK rate, which can be set from 2 mHz to
1 MHz (for internal sources only).
(5) Press the Frequency Hopping softkey to set the frequency hopping, which is
the alternating frequency.
Hexadecimal frequency shift keying (3FSK)
Using ternary frequency shift keying modulation, the output frequency is shifted
between three preset frequency values ("carrier frequency" and 2 "hopping
frequencies"). The frequency at which this output moves between three frequencies
is determined by the internal frequency generator (internal source). The carrier wave
can be a sine wave, a square wave, a ramp wave, or an arbitrary wave. The user
interface of ternary frequency shift keying modulation is shown in the figure below.
Figure 4- 18 Hexadecimal frequency shift keying user interface
Steps to set frequency shift keying modulation
(1)
After pressing the Mod function key, press the modulation type soft key, use
the knob to select, the modulation type is 3FSK, press the enter key. The
carrier waveform can be selected as needed. The following is a sine wave.