Boonton 4500B Peak Power Meter Manual de usuario descargar pdf (Pagina 344)

Boonton 4500B RF Peak Power Analyzer

Maintenance

7-12

Calibrator External Pulse Verification

Verify the external pulse input for the calibrator after the sensor has been calibrated (Subsection

7.7). The external pulse input is a TTL-compatible input located on the rear panel of the Model

4500B. To test the external pulse input, proceed as follows:

1. Connect the Channel 1 sensor to the calibrator output.

2. Press the Init 

3. Set the calibrator output to 5 dBm by selecting Calibrator > Set Level > 5 dBm.

4. Set the calibrator trigger to External by selecting Calibrator > Pulse > Source Ext.

5. Select positive trigger polarity by selecting Calibrator > Pulse > Polarity > +.

6. Set the calibrator to pulse mode by selecting Calibrator > Cal Mode Pulse.

7. Turn the calibrator on by selecting Calibrator > Cal Output > On.

8. Connect a BNC cable between the external pulse generator output and the EXT PULSE input

on the Model 4500B.

9. Set the external pulse generator output for 5 volts, 50 ohms, 100 ms pulse period, 50 ms pulse

width.

10. The Model 4500B should display a 5 dBm pulsed waveform with the period and pulse width

indicated in Step 9.

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Boonton 4500B Peak Power Meter Manual de usuario Pagina 344