Manualshelf

Instructions

ManualsBrandsAim TTi ManualsLaboratory EquipmentAim TTi PSA3605USCSpectrum Analyser, Frequency Fange ,
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controls the volume in 15 steps as shown on a bar graph. The audio can also be
muted and a hiss reducing filter applied.
Note that the RBW needs to be set appropriately for the modulation. As a broad guide the
RBW should be set greater than the channel bandwidth. However, setting an excessively wide
RBW will introduce unnecessary noise.
4.2.2 Waveform Demodulation Sub Menu (when fitted)
When option U02 is installed, the waveform of the modulation can be displayed for AM or FM
signals. Alternatively the carrier level can be displayed against time. If option U02 is not
installed, only the carrier level is displayed.
selects the display to be either the modulation (AM or FM) or the carrier. The carrier
display can be either the carrier level regularly sampled, or the carrier waveform
against a timebase.
Note that the selection of AM or FM is also applied to Audio Demodulation.
enables the AM depth or FM deviation to be adjusted using Up/Down keys.
The range is 1.25%/div to 25%/div equivalent to +/-5% to +/-100% full scale (AM) or
0.25kHz/div to 250kHz/div equivalent to +/-1kHz to +/-1MHz full scale (FM).
Note that this selection is also applied to Audio Demodulation
sets the display timebase within the range 5us/div to 20ms/div using Up/Down keys.
The timebase is used for AM, FM and Carrier Waveform display types.
the modulation waveform can be triggered to create a stable display for a tone or
other repetitive waveform. The trigger level is shown by a blue line on the screen
that can be shifted up or down. When the mode is set to Auto, the waveform will
trigger at that level on the rising or falling edge. In Free Run mode the trigger is ignored.
Note that the RBW needs to be set appropriately for the modulation. As a broad guide the
RBW should be set greater than the channel bandwidth in order to avoid waveform clipping.