Sweep Trigger Source - Rigol DG2052 User Manual

RIGOL
Ramp: 1 μHz to 2 MHz
Arb: 1 μHz to 25 MHz
The range of the frequency span is affected by the center frequency.
⚫
Center frequency <
frequency –
F
Center frequency ≥
center frequency).
Take sine as an example.
If the center frequency is 550 Hz, the frequency span range is ± 2× (550 Hz–1 μHz) =
± 1.099999998 kHz; if the center frequency is 60 MHz, the frequency span range is
± 2× (100 MHz – 60 MHz) = ± 80 MHz.
The generator will restart to sweep from the specified "start frequency" after the
"center frequency" or "frequency span" is modified.
Tip:
In large-scale sweep, the amplitude characteristic of the output signal might
change.

Sweep Trigger Source

The trigger sources of the sweep can be Internal, External, or Manual. When the
signal generator receives a trigger signal, a sweep output is generated, and then the
signal generator waits for another trigger signal. After the sweep function is enabled,
tap the Source to select "Internal", "External", or "Manual". The default is
"Internal".
1. Internal Trigger
The generator outputs continuous sweep waveforms when the internal trigger is
selected. The trigger period is determined by the specified sweep time, return
time, start hold, and stop hold time.
2. External Trigger
In the External trigger, the signal generator receives the trigger signal input from
the rear-panel [CH1/Sync/Ext Mod/Trig/FSK] connector. Once it receives a
TTL pulse with a specified polarity, a sweep is initiated. To specify the polarity of
the TTL pulse, tap the Trig In to select "RisEdge" or "FallEdge". By default, it is
"RisEdge".
2-60
: the range of the frequency span is ± 2× (center
F
m
);
min
: the range of the frequency span is ± 2× (
F
m
is 1 μHz,
F
min
Chapter 2 Front Panel Operations
is 100 MHz, and
F
max
-
F
max
is 50 MHz.
F
m
DG2000 User Guide