FSK
General
FSK (Frequency Shift Keying) mode permits fast phase-continuous switching between two
frequencies within the range of 1Hz to 20MHz. All other parameters of the waveform (amplitude,
offset, symmetry) remain the same as the frequency is switched.
FSK mode is turned on by pressing the
FSK
soft-key on the
MODE
screen, called by pressing
the
MODE
soft-key on the main menu.
Frequency Setting
The two frequencies
f0
and
f1
, between which the waveform is switched, are set on the
FSK FREQUENCIES screen, called by pressing the
FSK set-up
...
soft-key on the
MODE
screen.
FSK FREQUENCIES
source as gate setup
♦
f0: 1·000 kHz
◊
f1: 10·0000 kHz
With each frequency selected in turn (filled diamond) the frequency can be set using direct
numeric keyboard entries or by using the cursor keys and rotary control.
Trigger Source
The trigger source is the same source as that used for Gated and Tone modes and is accessed
and set up in the same way from the
TRIG/GATE SETUP
screen, called by pressing the
gated setup
...
soft-key on the
MODE
screen.
For an external trigger,
f0
is the frequency output with the TRIG/GATE IN signal low and
f1
is the frequency output with the TRIG/GATE IN signal high.
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