Features and Function
HDG2000 Series Arbitrary Waveform Generator 43
Start Frequency and Stop Frequency
The start frequency and stop frequency set the sweep’s upper and lower frequency bounds. The
sweep begins at the start frequency, sweeps to the stop frequency, and then resets back to the
start frequency.
Start and Stop frequencies: 1 μHz to the highest frequency. The sweep is phase continuous
over the full frequency range. The default start frequency is 100 Hz. The default stop frequency
is 1 kHz.
To sweep up in frequency, set the start frequency less than the stop frequency. To sweep down
in frequency, set the opposite relationship.
Each channel outputs frequency sweep or pulse sequence from corresponding BNCterminal.
Front Panel:
Center Frequency and Frequency Span
You can also set the sweep frequency boundaries of the sweep using a center frequency and
frequency span.
Center frequency: 1 μHz to 30 MHz (limited to 200 kHz for Ramps). The default is 550 Hz.
Frequency span: -30 μHz to 30 MHz (limited to 200 kHz for Ramps). The default is 900 Hz.
To sweep up in frequency, set a positive frequency span; to sweep down, set a negative
frequency span.
For sweeps with Marker Off, the Sync signal is a square waveform with a 50% duty cycle.
(missing or bad snippet) The frequency of the Sync waveform is equal to the specified sweep
time. The signal is output from the front-panel Sync connector.
For frequency sweeps with Marker On, the Sync signal is a TTL "high" at the beginning of the
sweep and a "low" at the marker frequency.
Sweep Time
Sweep time specifies the number of seconds required to sweep from the start frequency to the
stop frequency. The instrument calculates the number of points in the sweep based on the sweep
time.
Sweep time: 1 ms to300 seconds, default 1 s.
Front-Panel:
SCPI:
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