Datasheet

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(1) FSK allows to be set hop frequency, which the carrier frequency and hop frequency
output by turns.
(2) 4FSK allows to be set for three hop frequencies, carrier frequency and three hop
frequencies output in sequence 1, 2, 3.
(3) QFSK also allows to be set for three hop frequencies, carrier frequency and three
hop frequencies output randomly.
5.8.3 FSK rate
To set the FSK rate, press 〖FSK Rate〗or 〖4FSK Rate〗or 〖QFSK Rate〗softkey. Then
use the knob or numeric keypad to enter the desired rate. FSK rate is generally lower
than carrier frequency.
5.8.4 Trigger Source
Press〖Trigger〗softkey. When Internal source selected, generator takes internal source
and shift rate setting is available. When External source selected, generator takes
external source and shift rate setting is disabled. Details refer to Chapter 3.14.
5.9 Phase Shift Keying Modulation (PSK)
In PSK, the phase of output signal alternately hop between carrier phase and hop phase,
and hop rate depends on shift keying rate.
Press 【Modulate】 key then select the PSK mode. The PSK modulating waveform
sketch and PSK menu will be both displayed. The selection of PSK mode includes PSK,
QPSK, and 4PSK.
5.9.1 Set Carrier
Firstly, set the shape, frequency, amplitude and offset of Carrier Waveform. You can
select one of most waveforms from above table to be carrier, but some waveforms are
not available.
5.9.2 Hop Phase
PSK modulation is similar to PM that modulating waveform is Square. And hop phase is
similar to phase deviation. Press 〖Hop Phase〗softkey to set the desired value of hop
phase.
(1) PSK allows being set hop phase, which the carrier phase and hop phase output by
turns.
(2) 4PSK allows to be set for three hop phases, carrier phase and three hop phases
output in sequence 1, 2, 3.