Datasheet

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(3) QPSK also allows to be set for three hop phase s, carrier phase and three hop
phase s output randomly.
5.9.3 PSK Rate
To set the PSK rate, press 〖PSK Rate〗or 〖PFSK Rate〗or 〖QPSK Rate〗softkey. Then
use the knob or numeric keypad to enter the desired rate. FSK rate is generally lower
than carrier frequency.
5.9.4 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.
5.10 Amplitude Shift Keying Modulation (ASK)
In ASK, the amplitude of output signal alternately hop between carrier amplitude and hop
amplitude, and hop rate depends on shift keying rate.
Press 【Modulate】 key then select the ASK mode. The ASK modulating waveform
sketch and ASK menu will be both displayed. The selection of ASK mode includes ASK
and OSK.
5.10.1 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.
5.10.2 Hop Amplitude
In ASK, press〖Hop Ampl〗softkey and select Hop Ampl parameter to set the value. The
default setting for OSK hop amplitude is 0, so there is no Hop Ampl menu for OSK.
5.10.3 Hop Time
In OSK, press〖Hop Time〗softkey and select Hop Time parameter to set the value. Hop
Time represents the period of amplitude increases from 0 to maximum or decreases from
maximum to 0. In ASK, default hop time is 0 without menu option.
5.10.4 ASK Rate
Press 〖ASK Rate〗or〖ASK Rate〗softkey to set the value, that is modulating frequency,
which is far lower than carrier frequency.