Setting up a Sweep   

Configurations of the different sweep types require different procedures. The following examples list the essential settings for various sweep types.

Lin. Frequency

Log. Frequency

Segmented Frequency

Power Sweep...

Time Sweep...

Mode Sweep...

To Set up a Lin. Frequency Sweep...

1. Press the Sweep key in the Channel keypad or click Channel - Sweep to access the Sweep submenu.

2. Click Sweep Type – Lin. Frequency.

3. Click Channel – Stimulus to access the submenu defining the sweep range.

4. To define a sweep range confined by a start and a stop frequency, use Start and Stop. Alternatively, to define a sweep range of definite width around a known center frequency (e.g. an expected peak), use Center and Span.

5. To vary the number of measurement points (e.g. to improve the resolution of the sweep or reduce the sweep time), click Channel – Sweep – Number of Points.

If the active diagram is a Cartesian diagram, the x-axis is linearly scaled and labeled with the Start and Stop frequencies.

To Set up a Log. Frequency Sweep...

1. Press the Sweep key in the Channel keypad or click Channel - Sweep to access the Sweep submenu.

2. Click Sweep Type - Log. Frequency.

3. Click Channel - Stimulus to access the submenu defining the sweep range.

4. To define a sweep range confined by a start and a stop frequency, use Start and Stop. Alternatively, to define a sweep range of definite width around a known center frequency (e.g. an expected peak), use Center and Span.

5. To vary the number of measurement points (e.g. to improve the resolution of the sweep or reduce the sweep time), click Channel - Sweep - Number of Points.

If the active diagram is a Cartesian diagram, the x-axis is logarithmically scaled and labeled with the Start and Stop frequencies.

To Set up a Segmented Frequency Sweep...

1. Press the Sweep key in the Channel keypad or click Channel - Sweep to access the Sweep submenu.

2. Click Define Segments to call up the dialog defining the individual sweep segments. Proceed as described in Define Segments to customize your sweep range. Make sure to define at least 2 distinct sweep frequencies.

3. Use the controls in the Individual Segment panel to define the internal generator power, measurement (IF) bandwidth and other measurement settings for each sweep segment.

4. Close the Define Segments dialog.

5. Click Sweep Type - Segmented Frequency.

If the active diagram is a Cartesian diagram, the x-axis is linearly scaled and ranges from the lowest to the highest frequency in all segments.

To Set up a Power Sweep...

1. Press the Sweep key in the Channel keypad or click Channel - Sweep to access the Sweep submenu.

2. Click Sweep Type - Power.

3. In the CW Frequency entry bar opened, enter the fixed stimulus frequency for the power sweep.

4. Click Channel - Stimulus to access the submenu defining the sweep range.

5. To define the start and stop power, use Start and Stop.

6. To vary the number of measurement points (e.g. to improve the resolution of the sweep or reduce the sweep time), click Channel - Sweep - Number of Points.

If the active diagram is a Cartesian diagram, the x-axis is linearly scaled (in dB) and labeled with the Start and Stop powers.

To Set up a Time Sweep...

1. Press the Sweep key in the Channel keypad or click Channel - Sweep to access the Sweep submenu.

2. Click Sweep Type - Time.

3. In the Time Sweep entry bar opened, enter the fixed stimulus frequency (CW Frequency) and the internal generator power (Source Power) for the Time sweep.

4. Click Channel - Stimulus to access the submenu defining the sweep range.

5. To vary (extend) the sweep time, use Stop.

6. To vary the number of measurement points (e.g. to improve the resolution of the sweep or reduce the sweep time), click Channel - Sweep - Number of Points.

If the active diagram is a Cartesian diagram, the x-axis is linearly scaled and labeled with the start time 0 s and the Stop time.

To Set up a CW Mode Sweep...

1. Press the Sweep key in the Channel keypad or click Channel - Sweep to access the Sweep submenu.

2. Click Sweep Type - CW Mode.

3. In the CW Mode entry bar opened, enter the fixed stimulus frequency (CW Frequency) and the internal generator power (Source Power) for the sweep.

4. Click Channel - Stimulus to access the submenu defining the sweep range.

5. To vary the number of measurement points (implying a longer sweep time), use Stop.

If the active diagram is a Cartesian diagram, the x-axis is linearly scaled and labeled with the current numbers of the trigger events (measurement points).