| 10. Connect the output of the MA2418A Ref- | b. | Procedure | |||||||
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| erence Source to the two attenuators so |
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| as to add 40 dB of attenuation (Figure 3). |
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| 1. Connect the test equipment as shown in | |||||
| 11. Connect the MA2418A Reference Source |
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| Figure 3. | |||||
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| and the attenuators to the input of the |
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| 2. Press the Power key on the 541XXA to | |||||
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| On. | |||||
| 12. Verify that the power monitor reading is |
| 3. | Press the System Menu key. | ||||||
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| now |
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| 4. Using the Menu | |||||
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7. | TERMINATION VERIFICATION |
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| RESET, then press the Select key. | |||||
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This test can be used to verify the accuracy of termi- |
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| 5. At the RESET MENU display, use the | |||||||
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| Menu | |||||||
nations used with the Site Master. The test uses the |
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| RESET TO FACTORY DEFAULTS, then | ||||||
precision return loss mode of the 541XXA Scalar |
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| press the Select key. | ||||||
Measurement System. Measurements of termina- |
| 6. | Set the signal source for the frequency | |||||||
tions using this mode provide results that are trace- |
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| range as follows: | |||||||
able to the NIST (National Institute of Standards |
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and Technology) standards for the precision airline. |
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| (a) Press the Frequency key. | ||||||
a. | Equipment Required: |
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| (b) Using the Data Entry Keypad or | |||||
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| Data Entry Knob, set the START fre- | |||||||
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| Scalar Measurement System, |
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| quency to 0.01 GHz. Press the Enter | |||||
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| key. | ||||||
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| Anritsu 54161A/69A |
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| Offset SWR Autotester, |
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| (c) Using the Data Entry Keypad or | |||||
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| Data Entry Knob, set the STOP fre- | ||||||
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| Anritsu |
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| quency to 20.0 GHz. Press the Enter | |||||
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| Precision Airline, Anritsu 19KF50 |
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| key. | |||||
| Open/Short, Anritsu 22K50 |
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| 7. Press the Channel 2 Display On/Off key | ||||||
| 50 Ohm Termination, Anritsu 28K50 |
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| to Off. | |||||
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| Source Adapter, Anritsu K220B |
| 8. | Press the Channel 1 Menu key. | ||||||
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| Open/Short |
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| 50 Ohm |
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| Termination | |
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| Termination |
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| under Test | |
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541XXA Scalar Measurement System
A B
Source
Adapter
Beadless
End
Precision
Air Line
Connect Dashed Line Connections
When Directed By Procedure
Offset SWR
Autotester
Figure 4. 541XXA Precision Return Loss Test Setup
Site Master S820A MM | 5 |