HP 8517B Manual de usuario descargar pdf (Pagina 75)

HP 8517B S-Parameter Test Set Manual

5-15

Troubleshooting the Test Set

Troubleshooting Procedures

3. To examine each sampler’s IF signal, redefine which port and sampler

the network analyzer uses for the phase lock. Use the following steps:

a. Redefining to Port 2, sampler a2, press:

PARAMETER

[MENU]

{USER 3 a2}

then

{REDEFINE PARAMETER}

{DRIVE}

DRIVE:

{PORT 2}

{PHASE LOCK}

{a2}

{REDEFINE DONE}

Observe the resulting a2 IF trace on the display.

b. Redefining to Port 2, sampler b2, press:

{USER 2 b2}

then

{REDEFINE PARAMETER}

{DRIVE}

DRIVE:

{PORT 2}

{PHASE LOCK}

{a2}

{REDEFINE DONE}

Observe the resulting b2 IF trace on the display.

4. Connect an open (or short) to Port 1 and Port 2. Power is reflected back

to b1 and b2 samplers through the coupler.

To check each sampler trace, press:

{USER 1 a1}

{USER 2 b2}

{USER 3 a2}

{USER 4 b1}

5. Record your results for paths 1 thru 4 (

{USER 1}

{USER 4}

)inTable5-6.

NOTE

See Figure 5-10 for an RF signal-path 1 trace example. For Option 007, see

Figure 5-13.

1 2 ... 70 71 72 73 74 75 76 77 78 79 80 ... 135 136

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HP 8517B Manual de usuario Pagina 75

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