Agilent Technologies 8156A manual III. Attenuation Repeatability Test

Performance Tests

Performance Test

0.00dB REFERENCE
1 dB	2 dB	3 dB	4 dB
5 dB	6 dB	7 dB	8 dB
9 dB	10 dB	11 dB	12 dB
13 dB	14 dB	24 dB	34 dB
44 dB	54 dB	60 dB

III. Attenuation Repeatability Test

Specifications Agilent 8156A

Repeatability after any parameter has been changed and reset <± 0.01 dB.

Use the same equipment, test setup and instrument settings as used for the Attenuation Accuracy test (see the appropriate Total Insertion Loss Test Setup 2).

1. Set the Agilent 8156A attenuation to 1 dB and press DISP→ REF on the power meter.

2.Set the Agilent 8156A attenuation to any other value (e.g.

0.00 dB), wait until it settles at this value (The time taken to change depends on the size of the attenuation factor change, and is in the range 20 to 400ms (typical value is 200ms)). Then change the attenuation back to the previous value. Note the

deviation (dB) in the Test Record and check that it is within

± 0.01 dB.

3.Repeat steps 1 and 2 for the following attenuation settings:

5 dB	12 dB	24 dB	36 dB
48 dB	53 dB	60 dB

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