DS SG6000 Panduan Pengguna - Halaman 3
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11. Fine Power Tune – Adjust output power in fine (~0.05dB) increments between the 0.5dB steps.
12. Message Bar – Displays feedback information sent from the device
Control Software Notes
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If reference auto-detection is misbehaving with your input signal, it can be forced to external or internal using
the select box and "Change Ref" button. A SG reset is recommended after this setting is changed.
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"Send Command" allows a user to send a raw SCPI command to the Signal Generator, in USB mode the GUI will
also display any response from the device in the message bar at the bottom.
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The Vernier setting allows fine power output level setting between the 0.5dB steps. Highest power output
results when the slider is farthest to the right.
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If the USB voltage box goes into the red, performance will be unpredictable or an error will be indicated by the
device. Try finding a better USB power source or cable.
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If the device encounters any errors it will start blinking red, to query what the error is, send the SCPI command
"SYST:ERR?".
Hardware
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The MCX 10MHz reference input will accept sine or square wave input between -10 and +10dBm.
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The sweep trigger MCX input is pulled high to +3.3V internally, when pulled low the saved sweep will be
initiated. Sweep parameters must be loaded from the GUI for this trigger to be activated. This input is 5-volt
tolerant. Brining the input back high will not stop the sweep or have any other effect.
Sweeping Details
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The Sweep mode control lets the user configure a
continuous or single sweep.
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Direction UP increases frequency from Start to Stop,
DOWN starts the sweep at the stop frequency.
The Trigger option changes the functionality of the
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physical trigger input pin between activating the
complete sweep, or just the next STEP. This is only
available in certain firmware versions.
The Points field determines how many independent
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frequency points are calculated total. This can be
from 2 to 10000.
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The Dwell time field controls how long the
synthesizer will pause at each new frequency point.
Minimum value is ~3ms.
•
The Start and Stop frequency settings control the
beginning and end of the sweep.
•
The Step Size and Run Time are system calculated values based on the above values. Run time is only a close
estimate of the ideal value, not including actual minor system overhead and phase lock loop delays.
•
The Save Sweep button transfers these values from the GUI to the signal generator CPU. This button is critical to
press after values are updated in the control software.
•
The Abort button immediately stops the device mid sweep.
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The Trigger button emulates the physical trigger input pin by sending a command to start the sweep now.
Version 4.0 – DS Instruments 2022 – www.dsinstruments.com