Agilent Technologies 85032B/E 50 Specifikace stáhnout pdf (Strana 16)

Performance Checks 8712ET/ES and 8714ET/ES

Performing the Operator's Check RF Network Analyzers

1-8 Service Guide

Make a Reﬂection (or S11 and S22) Measurement with a Load

1. Disconnect the cable and connect a known good load to the RF OUT/PORT 1 test port as

shown in Figure 1-5.

Figure 1-5 Connect the Load

2. For ES models, press .

Verify that the data trace falls below −30 dB. If the data trace is off the screen, press

and the key until the trace moves up onto the screen.

Perform the remaining steps on ES model analyzers only.

4. Disconnect the load from PORT 1 and connect it to PORT 2 as shown in Figure 1-6.

Figure 1-6 Connect the Load to Port 2 (ES Models only)

5. Press .

6. Verify that the data trace falls below −30 dB. If the data trace is off the screen, press

and the key until the trace moves up onto the screen.

MEAS 1

S11 Reﬂ Port1

SCALE

Reference Level

MEAS 1

S22 Reﬂ Port2

SCALE

Reference Level

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 268 269

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Agilent Technologies 85032B/E 50 Specifikace Strana 16