Signal Hound VSG25, Software Manual

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Getting Started |
Device Controls
4
DEVICE CONTROLS
There are a number of device controls which allow you to define and manage output characteristics.
•
Frequency – Specify the output frequency in MHz. This will also function as the center
frequency for any active modulation.
•
Amplitude – Specify the output amplitude in dBm.
• RF – Toggles the RF output. When off, the RF output is disabled regardless of other settings.
•
Mod – Toggles the current modulation. When disabled, a CW is output. When enabled, the
last selected modulation will be configured again.
•
Preset – Performs a software reset and loads the software defaults.
MODULATION SELECTION
The modulation selection buttons expose the controls for the various modulation outputs available for
the VSG25. Each button corresponds to a new set of controls to be displayed in the modulation controls
area.
MODULATION CONTROLS
The modulation controls show related controls for the currently selected modulation. The shown
modulation will not be active until the
Apply Settings button is pressed. All controls are detailed below.
AM Controls
•
Modulation Rate – Specify the AM waveform frequency in kHz.
• Modulation Depth – Specify the AM waveform depth as a percentage of the output
amplitude.
•
Modulation Shape – Specify the shape of the AM waveform.
FM Controls
•
Modulation Rate – Specify the FM waveform frequency in kHz.
•
FM Deviation – Specify the FM deviation in kHz. This is the maximum frequency difference
between the FM modulated wave and carrier frequency.
• Modulation Shape – Specify the shape of the FM waveform.
Pulse Controls
•
Pulse Width – Specify the time the signal is high during one pulse cycle in microseconds.
•
Pulse Period – Specify the time between rising pulse edges in milliseconds.