Anritsu MA24106A Guia do Utilizador descarregar pdf (Página 156)

12-5 Frequency Response Test Operational Testing for the MA24108A, MA24118A, and MA24126A

12-4 PN: 10585-00020 Rev. C PowerXpert UG

12-5 Frequency Response Test

In this test the frequency response of the sensor is tested at one low power level against a reference sensor of

known measurement uncertainty. The reference sensor should be calibrated by a reputable standards

laboratory using instruments with low published measurement uncertainty values. To perform the

comparison, both sensors are used to measure the output power of a synthesizer with a high quality

attenuator, such as the 41KC-6, on the output. The attenuator improves the source match of the synthesizer by

lowering the mismatch ripples, thereby lowering the uncertainty in the comparison.

Test Procedure

1. Set up the equipment as follows (refer to Figure 12-1 for an illustration):

a. Connect the reference power sensor to the reference power meter using the appropriate cables.

b. Connect the USB cable between the personal computer with the PowerXpert application installed

and the MA24108A, MA24118A, or MA24126A power sensor under test.

c. Launch the PowerXpert application.

d. Turn the power on to all of the instruments and allow them to warm up for the amount of time

specified in their respective manuals.

e. Reset or Preset all of the instruments.

f. Configure the reference meter and sensor to measure a CW signal.

g. Perform a sensor Zero and a 1 mW reference calibration on the reference sensor and meter per the

manufacturer’s instructions.

h. Perform a low level Zero of the MA24108A, MA24118A, or MA24126A power sensor by

disconnecting it from the synthesizer, clicking the Zero button on the PowerXpert application, and

waiting for the Zeroing message to close.

i. Connect the attenuator to the output of the synthesizer with the appropriate adapter (if required)

to the output of the attenuator.

j. Set the synthesizer to +6 dBm and 50 MHz.

Index Description

1 Synthesizer

2 Reference Power Meter

3 Reference Power Sensor

4 K to N Adapter (if required)

5 Attenuator

Figure 12-1. Cal Factor Test Set Up (1 of 2)

MA24108A

MA24118A

MA24126A

1 2 ... 151 152 153 154 155 156 157 158 159 160 161 ... 223 224

Sem comentários

Anritsu MA24106A Guia do Utilizador Página 156